Gérard Lachapelle

Gérard Lachapelle, Ali Broumandan, Ranjeeth Kumar Siddakatte, 2014, 2014 Ubiquitous Positioning Indoor Navigation and Location Based Service (UPINLBS).

A New Approach for Improving Reliability of Personal Navigation Devices under Harsh GNSS Signal Conditions

Gérard Lachapelle, Anup Dhital, Jared Bancroft, 2013, Sensors.

Vulnerability Analysis of Civilian L1/E1 GNSS Signals against Different Types of Interference

Gérard Lachapelle, Ali Broumandan, Saeed Daneshmand, 2015 .

DGPS Kinematic Carrier Phase Signal Simulation Analysis for Precise Aircraft Velocity Determination

Gérard Lachapelle, M. E. Cannon, S. Ryan, 1997 .

Detection of quasi-static instants from handheld MEMS devices

Valérie Renaudin, Gérard Lachapelle, Melania Susi, 2011, 2011 International Conference on Indoor Positioning and Indoor Navigation.

Differential Signal Processing Schemes for Enhanced GPS Acquisition

Gérard Lachapelle, John Nielsen, Robert Watson, 2005 .

Attitude Determination in a Survey Launch Using Multi-Antenna GPS Technology

M. Elizabeth Cannon, Gang Lu, Gérard Lachapelle, 1993 .

GPS Tracking Performance under Avalanche Deposited Snow

Gérard Lachapelle, John B. Schleppe, G. Lachapelle, 2006 .

Enhanced GNSS frequency tracking in multipath environments

Gérard Lachapelle, Vahid Dehghanian, John Nielsen, 2013, 2013 26th IEEE Canadian Conference on Electrical and Computer Engineering (CCECE).

Performance Assessment of Low-Cost Hand Held GNSS Receiver's Raw Code and Carrier Phase Data

Gérard Lachapelle, Paul Gratton, Jamie Horrelt, 2018 .

Low-Cost GPS Receivers and Their Feasibility for Attitude Determination

Gérard Lachapelle, M. E. Cannon, V. A. Hoyle, 2002 .

Performance Analysis of a Post-Mission Multi-Reference RTK DGPS Positioning Approach

Gérard Lachapelle, Giovanni Pugliano, P. Alves, 2003 .

A Non-Coherent Block Processing Architecture for Standalone GNSS Weak Signal Tracking

Daniele Borio, Gérard Lachapelle, Shashank Satyanarayana, 2011 .

Spatial Characterization of GNSS Multipath Channels

Gérard Lachapelle, Ali Broumandan, Hatef Keshvadi, 2012 .

Ship GPS Multipath Detection Experiments

M. Elizabeth Cannon, Olivier Julien, Gérard Lachapelle, 2003 .

Enhanced pedestrian attitude estimation using vision aiding

Gérard Lachapelle, Laura Ruotsalainen, Heidi Kuusniemi, 2013, J. Locat. Based Serv..

Impact of Future GNSS Signals on Carrier- Phase Tracking

M. Elizabeth Cannon, Olivier Julien, Gérard Lachapelle, 2005 .

Spoofing detection, classification and cancelation (SDCC) receiver architecture for a moving GNSS receiver

Gérard Lachapelle, Ali Jafarnia-Jahromi, Ali Broumandan, 2015, GPS Solutions.

MEMS-IMU for Personal Positioning in a Vehicle - A Gyro-Free Approach

Gérard Lachapelle, Jussi Collin, Jani Käppi, 2002 .

Digital Phase Locked Loop With Frequency Rate Feedback

Gérard Lachapelle, Cillian O'Driscoll, P. L. Kazemi, 2009 .

GNSS Indoor Location Technologies

Gérard Lachapelle, G. Lachapelle, 2004 .

Utilizing Visual Measurements for Obtaining Robust Attitude and Positioning for Pedestrians

Jared B. Bancroft, Gérard Lachapelle, Laura Ruotsalainen, 2012 .

Using Wi-Fi/magnetometers for indoor location and personal navigation

Yuqi Li, Gérard Lachapelle, John Nielsen, 2015, 2015 International Conference on Indoor Positioning and Indoor Navigation (IPIN).

Performance Evaluation of Ultra-tight Integration of GPS/Vehicle Sensors for Land Vehicle Navigation

Mark G. Petovello, Gérard Lachapelle, Tao Li, 2009 .

Implementation and Verification of a Software-Based IF GPS Signal Simulator

Lei Dong, Gérard Lachapelle, Changlin Ma, 2004 .

A New Multipath and Noise Mitigation Technique Using Data / Data-less Navigation Signals

M. Elizabeth Cannon, Olivier Julien, Gérard Lachapelle, 2004 .

Evaluation of GPS-based methods of relative positioning for automotive safety applications

Gérard Lachapelle, Thomas Williams, Chaminda Basnayake, 2012 .

SATLSim: a Semi-Analytic framework for fast GNSS tracking loop simulations

Daniele Borio, Gérard Lachapelle, Pratibha B Anantharamu, 2011, GPS Solutions.

Combined Spatial-Polarization Correlation Function for Indoor Multipath Environments

Gérard Lachapelle, Vahid Dehghanian, John Nielsen, 2010 .

Ultra-tightly Coupled GPS/Vehicle Sensor Integration for Land Vehicle Navigation

Mark G. Petovello, Gérard Lachapelle, Tao Li, 2010 .

Effect of camera characteristics on the accuracy of a visual gyroscope for indoor pedestrian navigation

Ruizhi Chen, Gérard Lachapelle, Laura Ruotsalainen, 2012, 2012 Ubiquitous Positioning, Indoor Navigation, and Location Based Service (UPINLBS).

Carrier Phase Tracking of Weak Signals Using Different Receiver Architectures

Mark G. Petovello, Gérard Lachapelle, Cillian O'Driscoll, 2008 .

Magnetic perturbations detection and heading estimation using magnetometers

Valérie Renaudin, Gérard Lachapelle, Muhammad Haris Afzal, 2012, J. Locat. Based Serv..

Use of Earth’s Magnetic Field for Mitigating Gyroscope Errors Regardless of Magnetic Perturbation

Valérie Renaudin, Gérard Lachapelle, Muhammad Haris Afzal, 2011, Sensors.

Data Fusion Algorithms for Multiple Inertial Measurement Units

Gérard Lachapelle, Jared Bancroft, G. Lachapelle, 2011, Sensors.

Stereo-Vision Aided GNSS for Automotive Navigation in Challenging Environments

Mark G. Petovello, Gérard Lachapelle, Bernhard M. Aumayer, 2013 .

Estimating MEMS gyroscope g-sensitivity errors in foot mounted navigation

Gérard Lachapelle, Jared Bancroft, G. Lachapelle, 2012, 2012 Ubiquitous Positioning, Indoor Navigation, and Location Based Service (UPINLBS).

Performance Testing of a Real-Time Software-Based GPS Receiver for x86 Processors

Mark G. Petovello, Gérard Lachapelle, S. Charkhandeh, 2006 .

A non-coherent architecture for GNSS digital tracking loops

Daniele Borio, Gérard Lachapelle, 2009, Ann. des Télécommunications.

Mixed integer programming for the resolution of GPS carrier phase ambiguities pdf

M. Elizabeth Cannon, Gérard Lachapelle, Peiliang Xu, 2010, ArXiv.

A GPS-BASED CALIBRATION TOOL FOR MICROSCOPIC TRAFFIC SIMULATION MODELS

Gérard Lachapelle, Chaminda Basnayake, Andrew MacIver, 2003 .

RELIABILITY IN PERSONAL POSITIONING

Jarmo Takala, Gérard Lachapelle, Heidi Kuusniemi, 2004 .

Temporal GPS Positioning for Determining the Relative Motion of a Suspended Object in Flight

Mark G. Petovello, Gérard Lachapelle, Jared B. Bancroft, 2009 .

Dynamic Deformation Monitoring of Tall Structure Using GPS Technology

Gérard Lachapelle, W. F. Teskey, M. E. Cannon, 1995 .

Optimizing a network-based RTK method for OTF positioning

Gérard Lachapelle, M. E. Cannon, Susan Skone, 2003 .

TOA Estimation Enhancement based on Blind Calibration of Synthetic Arrays

Gérard Lachapelle, John Nielsen, Ali Broumandan, 2008, 2008 IEEE 68th Vehicular Technology Conference.

Indoor Doppler Measurements and Velocity Characterization Using a Reference-Rover Receiver

Daniele Borio, Gérard Lachapelle, Behnam Aminian, 2010 .

PEDESTRIAN AND VEHICULAR NAVIGATION UNDER SIGNAL MASKING USING INTEGRATED HSGPS AND SELF CONTAINED SENSOR TECHNOLOGIES

Gérard Lachapelle, Jussi Collin, Glenn MacGougan, 2003 .

Intermittent tracking in weak signal environments

Mark G. Petovello, Gérard Lachapelle, Vijaykumar Bellad, 2015, 2015 International Conference on Indoor Positioning and Indoor Navigation (IPIN).

Step Length Estimation Using Handheld Inertial Sensors

Valérie Renaudin, Gérard Lachapelle, Melania Susi, 2012, Sensors.

Test of a 400 km x 600 km Network of Reference Receivers for Precise Kinematic Carrier-Phase Positioning in Norway

Gérard Lachapelle, T. E. Melgard, John F. Raquet, 1998 .

Hardware Simulator Models and Methodologies for Controlled Indoor Performance Assessment of High Sensitivity AGPS Receivers

Gérard Lachapelle, Sanjeet Singh, Elizabeth Cannon, 2003 .

Estimation Noise of a Cellular Telephone Positioning System

Michel Fattouche, Gérard Lachapelle, Richard Klukas, 2000 .

Testing Oscillator Stability as a Limiting Factor in Extreme High- Sensitivity GPS Applications

Gérard Lachapelle, Richard Klukas, 2006 .

Characterization of GNSS measurement distortions due to antenna array processing in the presence of interference signals

Gérard Lachapelle, Ali Broumandan, Ali Jafarnia Jahromi, 2014, 2014 Ubiquitous Positioning Indoor Navigation and Location Based Service (UPINLBS).

Proposed NAV Data Signal Design for Optimal TTFF in a Single frequency IRNSS Receiver

Gérard Lachapelle, Vyasaraj Guru Rao, Sumadhva B Pappu, 2012 .

Performance of Antenna Array Calibration in Multipath Environments

Gérard Lachapelle, Ali Broumandan, Niranjana Vagle, 2016 .

Implementation and Testing of a Real-Time Software-Based GPS Receiver for x86 Processors

Gérard Lachapelle, Robert Watson, Shahin Charkhandeh, 2006 .

Accelerometer Signal Features and Classification Algorithms for Positioning Applications

Daniele Borio, Gérard Lachapelle, Melania Susi, 2011 .

Multiple sensors integration for pedestrian indoor navigation

Tao Lin, Gérard Lachapelle, Lingran Li, 2015, 2015 International Conference on Indoor Positioning and Indoor Navigation (IPIN).

Performance Comparison of Difference Correlator and Co-op Tracking Architectures Under Receiver Clock Instability

Tao Lin, Gérard Lachapelle, Ahmad Shafaati, 2015 .

Attitude Determination with GPS-Aided Inertial Navigation Systems

Gérard Lachapelle, M. E. Cannon, O. S. Salychev, 2000 .

An HSGPS, inertial and map-matching integrated portable vehicular navigation system for uninterrupted real-time vehicular navigation

Gérard Lachapelle, M. E. Cannon, O. Mezentsev, 2005 .

A Nonline-of-Sight Error-Mitigation Method for TOA Measurements

Gérard Lachapelle, Changlin Ma, Richard Klukas, 2007, IEEE Transactions on Vehicular Technology.

Introduction to the Issue on Advanced Signal Processing for GNSS and Robust Navigation

Jean-Yves Tourneret, Dorota A. Grejner-Brzezinska, Fredrik Gustafsson, 2009, IEEE J. Sel. Top. Signal Process..

GLRT signal detection performance of a synthetic array

Gérard Lachapelle, John Nielsen, Ali Broumandan, 2010, CCECE 2010.

Kinematic systems in geodesy, surveying, and remote sensing

Gérard Lachapelle, Klaus-Peter Schwarz, 1991 .

Quantifying Improvements from the Integration of GPS and a Tactical Grade INS in High Accuracy Navigation Applications

Mark G. Petovello, Gérard Lachapelle, M. E. Cannon, 2003 .

Methodology for comparing two carrier phase tracking techniques

Gérard Lachapelle, Dina Reda Salem, Cillian O’Driscoll, 2011, GPS Solutions.

GNSS Interference and Multipath Suppression Using Array Antenna

Gérard Lachapelle, Ali Broumandan, Saeed Daneshmand, 2011 .

Design Paradigms for Multi-Constellation Multi-Frequency Software GNSS Receivers

Mark G. Petovello, James T. Curran, Gérard Lachapelle, 2013 .

A Complete Software-Based IF GNSS Signal Generator for Software Receiver Development

Olivier Julien, Gérard Lachapelle, Lei Dong, 2004 .

Assessment of Measurement Distortions in GNSS Antenna Array Space-Time Processing

Gérard Lachapelle, Saeed Daneshmand, Thyagaraja Marathe, 2016 .

Multi‐Magnetometer Based Perturbation Mitigation for Indoor Orientation Estimation

Gérard Lachapelle, Muhammad Haris Afzal, Valerie Renaudin, 2011 .

Ambiguity Resolution Without Static Initialization Using a High Performance C/A Code Receiver

Gérard Lachapelle, M. E. Cannon, G. Lu, 1992 .

A Precise GPS Sensor Subsystem for Vehicle Platoon Control

Gérard Lachapelle, M. E. Cannon, C. Basnayake, 2003 .

Use of GNSS for Vehicle-pedestrian and Vehicle-cyclist Crash Avoidance

Gérard Lachapelle, Richard B. Ong, 2011 .

Enhanced Detection of Weak GNSS Signals Using Spatial Combining

Gérard Lachapelle, John Nielsen, Surendran K. Shanmugam, 2009 .

Motion Mode Recognition and Step Detection Algorithms for Mobile Phone Users

Valérie Renaudin, Gérard Lachapelle, Melania Susi, 2013, Sensors.

Combined Spatial-Polarization Correlation Function for Indoor Multipath Environments

Gérard Lachapelle, Vahid Dehghanian, John Nielsen, 2010, IEEE Antennas and Wireless Propagation Letters.

Statistical Reliability Measures for GPS

Gérard Lachapelle, Sean G. Ryan, G. Lachapelle, 2000 .

Enhanced Cellular Network Positioning using Space-Time Diversity

Gérard Lachapelle, John Nielsen, Ali Broumandan, 2007 .

Characterization of Tracking and Position Errors in GNSS Receivers with Intermittent Tracking

Mark G. Petovello, Gérard Lachapelle, Vijaykumar Bellad, 2014 .

An Efficient New Method of Doppler Removal and Correlation with Application to Software-Based GNSS Receivers

Mark G. Petovello, Gérard Lachapelle, G. Lachapelle, 2006 .

Performance Analysis of an Ultra-Tightly Integrated GPS and Reduced IMU System

Mark G. Petovello, Gérard Lachapelle, M. E. Cannon, 2007 .

Doppler Measurements and Velocity Estimation: A Theoretical Framework with Software Receiver Implementation

Daniele Borio, Gérard Lachapelle, N. Sokolova, 2009 .

Indoor GPS positioning using a slowly moving antenna and long coherent integration

James T. Curran, Gérard Lachapelle, Ali Broumandan, 2015, 2015 International Conference on Location and GNSS (ICL-GNSS).

A New Unambiguous BOC(n,n) Signal Tracking Technique*

M. Elizabeth Cannon, Olivier Julien, Christophe Macabiau, 2004 .

Precise GNSS Attitude Determination Based on Antenna Array Processing

Negin Sokhandan, Gérard Lachapelle, Saeed Daneshmand, 2014 .

Effects of building materials on UHF ranging signals

Gérard Lachapelle, Olivier Julien, Elizabeth Cannon, 2004 .

Magnetic field based heading estimation for pedestrian navigation environments

Valérie Renaudin, Gérard Lachapelle, Muhammad Haris Afzal, 2011, 2011 International Conference on Indoor Positioning and Indoor Navigation.

Performance Evaluation of Multiple Reference Station GPS RTK for a Medium Scale Network

Gérard Lachapelle, T. H. Diep Dao, P. Alves, 2004 .

Demonstration of a high sensitivity GNSS software receiver for indoor positioning

Tao Lin, Gérard Lachapelle, Ali Broumandan, 2013 .

Multirate recovery scheme for wide-band global navigation satellite system signals

Daniele Borio, Gérard Lachapelle, S. Fazio, 2011 .

Enhanced Detection Performance of Indoor GNSS Signals Based on Synthetic Aperture

Gérard Lachapelle, John Nielsen, Ali Broumandan, 2010, IEEE Transactions on Vehicular Technology.

Performance Evaluation of Kalman Filter Based Tracking for the New GPS L5 Signal

Gérard Lachapelle, M. E. Cannon, C. Mongredien, 2007 .

Performance Evaluation of L2C Data/Pilot Combined Carrier Tracking

Gérard Lachapelle, Richard Klukas, Kannan Muthuraman, 2008 .

Design and Testing of a Multi-Sensor Pedestrian Location and Navigation Platform

Valérie Renaudin, Gérard Lachapelle, Jared Bancroft, 2012, Sensors.

Combined Acquisition and Tracking Methods for GPS L1 C/A and L1C Signals

Mark G. Petovello, Gérard Lachapelle, Florence Macchi-Gernot, 2010 .

GPS on the Web

Gérard Lachapelle, 2000, GPS Solutions.

Weak GPS signal acquisition using antenna diversity

Gérard Lachapelle, Ali Broumandan, Kyle O'Keefe, 2014, 2014 Ubiquitous Positioning Indoor Navigation and Location Based Service (UPINLBS).

Submeter real-time differential GPS and attitude determination for unmanned navigation

M. Elizabeth Cannon, Gérard Lachapelle, 1996, Defense, Security, and Sensing.

Benefits of Using a Tactical-Grade IMU for High-Accuracy Positioning

Mark G. Petovello, Gérard Lachapelle, M. E. Cannon, 2004 .

An Efficient NLOS Error Mitigation Method for Wireless Location

Gérard Lachapelle, Changlin Ma, R. Klukas, 2002 .

A New TLS-Based Sequential Algorithm to Identify Two Failed Satellites

Gérard Lachapelle, Chang-Wan Jeon, G. Lachapelle, 2005 .

Global Availability and Reliability Assessment of the GPS and Galileo Global Navigation Satellite Systems

Gérard Lachapelle, Kyle O'Keefe, S. Ryan, 2002 .

Inter-Sensor Validation for Improved Reliability of Multi-Sensor Systems

Gérard Lachapelle, Jared B. Bancroft, Anup Dhital, 2014 .

Indoor doppler error characterization for high sensitivity GNSS receivers

Mark G. Petovello, Gérard Lachapelle, Zhe He, 2014, IEEE Transactions on Aerospace and Electronic Systems.

Benefits of an Ultra Stable Oscillator for Long Coherent Integration

James T. Curran, Gérard Lachapelle, Ali Broumandan, 2014 .

Servicing the GPS/GNSS User

Gérard Lachapelle, Sam Ryan, Pierre Heroux, 2010 .

Improving the Reliability of OTF Ambiguity Resolution with Dual Frequency GPS Observations

M. Elizabeth Cannon, Gérard Lachapelle, G. Lu, 1995 .

Receiver Autonomous Integrity Monitoring in Urban Vehicle Navigation: The Five Satellite Case

Gérard Lachapelle, Kyle O'Keefe, Daniele Bettinelli, 2011 .

Combined L1/L2 Kalman filter-based tracking scheme for weak signal environments

Kyle O’Keefe, Gérard Lachapelle, Cyrille Gernot, 2011 .

Exploiting the Orthogonality of L2C Code Delays for a Fast Acquisition

Gérard Lachapelle, John Nielsen, Robert Watson, 2006 .

A High Fidelity Multi Antenna Software Simulator for Array Processing in GNSS

Gérard Lachapelle, Saeed Daneshmand, Thyagaraja Marathe, 2016 .

Tracking and Position Errors in GNSS Receivers with Intermittent Signal Tracking

Mark G. Petovello, Gérard Lachapelle, Vijaykumar Bellad, 2016 .

Analysis of GNSS Beamforming and Angle of Arrival Estimation in Multipath Environments

Gérard Lachapelle, Ali Broumandan, Mohammad Hatef Keshvadi, 2011 .

Complete Triaxis Magnetometer Calibration in the Magnetic Domain

Valérie Renaudin, Gérard Lachapelle, Muhammad Haris Afzal, 2010, J. Sensors.

Marine Positioning With a GPS-Aided Inertial Navigation System

Gérard Lachapelle, K. P. Schwarz, R. V. C. Wong, 1984 .

Evaluation of Smartphones, Low Cost Hand Held Units and Watches with GNSS Raw Data Capability

Gérard Lachapelle, Ali Broumandan, Paul Gratton, 2018 .

Detection and Mitigation of Spoofing Attacks on a Vector-Based Tracking GPS Receiver

Tao Lin, Gérard Lachapelle, John Nielsen, 2012 .

Millimetre Level Accuracy GNSS Positioning with the Blind Adaptive Beamforming Method in Interference Environments

Gérard Lachapelle, Saeed Daneshmand, Thyagaraja Marathe, 2016, Sensors.

Context-aware Adaptive Extended Kalman Filtering Using Wi-Fi Signals for GPS Navigation

Gérard Lachapelle, Kyle O'Keefe, Mahsa Shafiee, 2011 .

Satellite navigation for high precision aircraft navigation with emphasis on atmospheric effects

Gérard Lachapelle, M. E. Cannon, B. Tiemeyer, 1994, Proceedings of 1994 IEEE Position, Location and Navigation Symposium - PLANS'94.

Letter from the Guest Editors: The GPS Wireless Special Issue

Gérard Lachapelle, Jinling Wang, G. Lachapelle, 2002 .

A Comparison of Single Reference Station, Correction-Based Multiple Reference Station, and Tightly Coupled Methods using Stochastic Ionospheric Modelling

Gérard Lachapelle, P. Alves, 2005 .

Multiple Reference Station Approach: Overview and Current Research

Gérard Lachapelle, P. Alves, G. Lachapelle, 2002 .

Foot and Ankle Kinematics During Gait Using Foot Mounted Inertial System

Gérard Lachapelle, S. Godha, S. P. Kwakkel, 2007 .

Improving the Design of Frequency Lock Loops for GNSS Receivers

James T. Curran, Gérard Lachapelle, Colin C. Murphy, 2012, IEEE Transactions on Aerospace and Electronic Systems.

Doppler measurement accuracy in standard and highsensitivity global navigation satellite system receivers

Daniele Borio, Gérard Lachapelle, N. Sokolova, 2011 .

GNSS Spoofing Detection Based on Receiver C/No Estimates

Gérard Lachapelle, Vahid Dehghanian, John Nielsen, 2012 .

A Ray-Tracing Technique to Characterize GPS Multipath in the Frequency Domain

James T. Curran, Gérard Lachapelle, Ali Broumandan, 2015 .

High Sensitivity GPS Velocity Updates For Personal Indoor Navigation Using Inertial Navigation Systems

Mark G. Petovello, Gérard Lachapelle, O. Mezentsev, 2003 .

DEVELOPMENT AND TESTING OF AN INTEGRATED INS/GPS CROSS-LINKED SYSTEM FOR SUB-METER POSITIONING OF A CF-188 JET FIGHTER

Gérard Lachapelle, M. E. Cannon, R. Caballero, 1999 .

Characterizing Signal Distortion Due to Space-time Processing of Interference Impacted GNSS Signals

Gérard Lachapelle, Saeed Daneshmand, Thyagaraja Marathe, 2015 .

GPS Observability and Availability for Various Antenna Locations on the Human Body

Jared B. Bancroft, Gérard Lachapelle, Thomas Williams, 2010 .

Overview of Spatial Processing Approaches for GNSS Structural Interference Detection and Mitigation

Gérard Lachapelle, Ali Broumandan, Saeed Daneshmand, 2016, Proceedings of the IEEE.

Proposed Code and Carrier Dimension Dependent Signal Design for Optimal TTFF in IRNSS

Gérard Lachapelle, Vyasaraj Guru Rao, Sumadhva B Pappu, 2011 .

Evaluation of L2C Observations and Limitations

Gérard Lachapelle, Susan Skone, O. al-Fanek, 2007 .

Use of a Multi-Reference GPS Station Network for Precise 3D Positioning in Constricted Waterways

M. Elizabeth Cannon, Gérard Lachapelle, Sam Ryan, 2000 .

Shipborne GPS attitude determination during MMST-93

Gérard Lachapelle, M. E. Cannon, B. Loncarevic, 1996 .

Accurate GNSS Range Estimation in Multipath Environments Using Stochastic‐Gradient‐Based Adaptive Filtering

Negin Sokhandan, James T. Curran, Gérard Lachapelle, 2016 .

GPS spoofer countermeasure effectiveness based on signal strength, noise power, and C/N0 measurements

Gérard Lachapelle, John Nielsen, Ali Broumandan, 2012, Int. J. Satell. Commun. Netw..

GPS versus Loran-C for vehicular navigation in urban and mountainous areas

Gérard Lachapelle, M. E. Cannon, H. Gehue, 1993, Proceedings of VNIS '93 - Vehicle Navigation and Information Systems Conference.

A comparison of P code and high performance C/A code GPS receivers for on the fly ambiguity resolution

Gérard Lachapelle, M. E. Cannon, G. Lu, 1993 .

Precise Rapid Surveys Using a Combination of Code and Carrier Measurements

Gérard Lachapelle, Caroline Erickson, She Bin Bin, 1991 .

Doppler Characterization of a Mobile GNSS Receiver in Multipath Fading Channels

Gérard Lachapelle, Ali Broumandan, Seyed Nima Sadrieh, 2012 .

Robust Beamforming for GNSS Synthetic Antenna Arrays

Tao Lin, Gérard Lachapelle, John Nielsen, 2009 .

Self-contained GNSS-based Antenna Array Calibration

Daniele Borio, Gérard Lachapelle, Pratibha B Anantharamu, 2011 .

Choosing the coherent integration time for Kalman filter-based carrier-phase tracking of GNSS signals

Mark G. Petovello, Gérard Lachapelle, Cillian O’Driscoll, 2011 .

Performance analysis of GNSS multipath mitigation using antenna arrays

Gérard Lachapelle, Ali Broumandan, Niranjana Vagle, 2016 .

Development and Testing of a Kinematic Carrier-Phase Ambiguity Resolution Method Using a Reference Receiver Network1

Gérard Lachapelle, John F. Raquet, G. Lachapelle, 1999 .

Development of a Low-Cost Solution for GPS/Gyro Attitude Determination

Gérard Lachapelle, Chaochao Wang, 2004 .

Vehicular Navigation in Urban Canyons Using a High Sensitivity GPS Receiver Augmented with a Low Cost Rate Gyro

Gérard Lachapelle, O. Mezentsev, R. Klukas, 2002 .

Channel Context Detection and Signal Quality Monitoring for Vector-based Tracking Loops

Gérard Lachapelle, Tao Lin, Cillian O'Driscoll, 2010 .

Pre-Filtering, Side-Peak Rejection and Mapping: Several Solutions for Unambiguous BOC Tracking

Daniele Borio, Gérard Lachapelle, Pratibha B Anantharamu, 2009 .

GNSS Interference and Multipath Suppression Using an Antenna Array

Gérard Lachapelle, Ali Broumandan, Saeed Daneshmand, 2011 .

Effectiveness of GNSS Spoofing Countermeasure Based on Receiver CNR Measurements

Gérard Lachapelle, Vahid Dehghanian, John Nielsen, 2012 .

Interference Mitigation for Highly Dynamic GPS Receivers Using Intelligent Tracking Loops

Daniele Borio, Gérard Lachapelle, John Nielsen, 2011 .

P3 Aircraft Buffeting Measurement Using Precise Carrier Phase Techniques

Mark G. Petovello, M. Elizabeth Cannon, Gérard Lachapelle, 2001 .

Spoofing Detection Using GNSS/INS/Odometer Coupling for Vehicular Navigation

Gérard Lachapelle, Ali Broumandan, G. Lachapelle, 2018, Sensors.

NAVSTAR/GPS single point positioning using pseudo-range and Doppler observations

Gérard Lachapelle, Norman Beck, Pierre Heroux, 1982 .

GNSS Multipath Mitigation using Low Complexity Adaptive Equalization Algorithms

Negin Sokhandan, Gérard Lachapelle, Ali Broumandan, 2014 .

Real-time Ultra-tight Integration of GPS L1/L2C and Vehicle Sensors

Mark G. Petovello, Gérard Lachapelle, Tao Li, 2011 .

Centimeter-Level Positioning Using an Efficient New Baseband Mixing and Despreading Method for Software GNSS Receivers

Mark G. Petovello, Gérard Lachapelle, G. Lachapelle, 2008, EURASIP J. Adv. Signal Process..

Consequences of MBOC Approximation by BOC Modulation

Mark G. Petovello, Gérard Lachapelle, F. Macchi, 2008 .

Efficient Dual-Frequency Ambiguity Resolution Algorithm for GPS-Based Attitude Determination

Gérard Lachapelle, M. E. Cannon, C. Mongredien, 2008 .

GPS CRITICAL DATES TEST PLAN

Mark G. Petovello, Gérard Lachapelle, M. E. Cannon, 1999 .

HSGPS Signal Analysis and Performance Under Various Indoor Conditions

Gérard Lachapelle, M. E. Cannon, Heidi Kuusniemi, 2003 .

Acquisition Schemes for a GPS L5 Software Receiver

Gérard Lachapelle, Bo Zheng, 2004 .

Testing and Analysis of Reliability Measures for GNSS Receivers in the Marine Environment

Gérard Lachapelle, J. Stephen, S. Ryan, 1999 .

Field tests of a cellular telephone positioning system

Michel Fattouche, Gérard Lachapelle, R. Klukas, 1997, 1997 IEEE 47th Vehicular Technology Conference. Technology in Motion.

Estimation of Clock Stability Using GPS

Mark G. Petovello, Gérard Lachapelle, 2000, GPS Solutions.

Collaborative Code Tracking of Composite GNSS Signals

Daniele Borio, Gérard Lachapelle, Cécile Mongredien, 2009, IEEE Journal of Selected Topics in Signal Processing.

Mitigation of NLOS error in angle-of-arrival wireless location

Gérard Lachapelle, Changlin Ma, R. Klukas, 2003, SPIE Defense + Commercial Sensing.

DGPS Positioning Accuracy Performance Analysis with RTCM Message Types 1/9 and 18-21 Using Various Receiver Technologies

Gérard Lachapelle, M. E. Cannon, C. Tang, 1995 .

Weak GPS Signal Acquisition Using Antenna Diversity

Gérard Lachapelle, Ali Broumandan, Kyle O'Keefe, 2015 .

Practical Results of High Resolution AOA Estimation by the Synthetic Array

Gérard Lachapelle, John Nielsen, Ali Broumandan, 2008, 2008 IEEE 68th Vehicular Technology Conference.

A GNSS structural interference mitigation technique using antenna array processing

Gérard Lachapelle, Ali Broumandan, Saeed Daneshmand, 2014, 2014 IEEE 8th Sensor Array and Multichannel Signal Processing Workshop (SAM).

Pedestrian navigation with high sensitivity GPS receivers and MEMS

Gérard Lachapelle, 2006, Personal and Ubiquitous Computing.

GPS Marine Kinematic Positioning Accuracy and Reliability

Gérard Lachapelle, M. J. Casey, M. Eaton, 1987 .

Adaptive Data/Pilot Carrier Phase Tracking for Modernized GNSS Signals

Daniele Borio, Gérard Lachapelle, Richard Klukas, 2010 .

A Novel Architecture for Ultra-Tight HSGPS-INS Integration

Gérard Lachapelle, Guojiang Gao, G. Lachapelle, 2008 .

Improvement of GNSS Positioning with Proper Calibration of Inter-channel and Inter-element Bias in Receiver Front-ends

Gérard Lachapelle, Anup Dhital, Aiden Morrison, 2011 .

Detection Performance of Polarization and Spatial Diversities for Indoor GNSS Applications

Gérard Lachapelle, Ali Broumandan, M. Zaheri, 2012 .

Testing of a Multi-Reference GPS Station Network for Precise 3D Positioning in the St. Lawrence Seaway

M. Elizabeth Cannon, Gérard Lachapelle, Sam Ryan, 1999 .

Computer Vision Navigation based on Fiducial Markers of Opportunity

Gérard Lachapelle, John Nielsen, Lakhani, 2013 .

The Issues of Practical Implementation of the Commercial RTK Network Service

Gérard Lachapelle, M. E. Cannon, I. Petrovski, 2001 .

Direction of Arrival Estimation of GNSS Signals Based on Synthetic Antenna Array

Tao Lin, Gérard Lachapelle, John Nielsen, 2007 .

Design Methodology for a Dual Frequency Configurable GPS Receiver

Gérard Lachapelle, Muhammad Haris Afzal, 2010 .

Coherent integration time limit of a mobile receiver for indoor GNSS applications

Gérard Lachapelle, John Nielsen, Ali Broumandan, 2012, GPS Solutions.

Position and velocity reliability testing in degraded GPS signal environments

Jarmo Takala, Gérard Lachapelle, Heidi Kuusniemi, 2004 .

Indoor Positioning System Using Accelerometry and High Accuracy Heading Sensors

Gérard Lachapelle, Jussi Collin, O. Mezentsev, 2003 .

In-Receiver Multiple Reference Station RTK Solution

Gérard Lachapelle, M. E. Cannon, P. Alves, 2004 .

Precise Calibration of a GNSS Antenna Array for Adaptive Beamforming Applications

Negin Sokhandan, Gérard Lachapelle, Saeed Daneshmand, 2014, Sensors.

Evaluation of a Low Cost Hand Held Unit with GNSS Raw Data Capability and Comparison with an Android Smartphone

Gérard Lachapelle, Ali Broumandan, Paul Gratton, 2018, Sensors.

New unambiguous BOC(n,n) tracking technique

Olivier Julien, Christophe Macabiau, Gérard Lachapelle, 2004 .

Centimeter-Level Relative Positioning of Distributed Moving Platforms Using GPS Carrier Phase Observables

Gérard Lachapelle, Ning Luo, 1999 .

A Portable Vehicular Navigation System Using High Sensitivity GPS Augmented with Inertial Sensors and Map-matching

Gérard Lachapelle, M. E. Cannon, O. Mezentsev, 2004 .

Pseudolite interference mitigation and signal enhancements using an antenna array

Gérard Lachapelle, Saeed Daneshmand, Thyagaraja Marathe, 2015, 2015 International Conference on Indoor Positioning and Indoor Navigation (IPIN).

GPS Vulnerability to Spoofing Threats and a Review of Antispoofing Techniques

Gérard Lachapelle, John Nielsen, Ali Broumandan, 2012 .

An SNR Dependent Model for the CDMA FLL

James T. Curran, Gérard Lachapelle, Colin C. Murphy, 2012, IEEE Transactions on Signal Processing.

An enhanced two-step least squared approach for TDOA/AOA wireless location

Gérard Lachapelle, Changlin Ma, Richard Klukas, 2003, IEEE International Conference on Communications, 2003. ICC '03..

INS Assisted Fuzzy Tracking Loop for GPS-GuidedMissiles and Vehicular Applications

Gérard Lachapelle, John Nielsen, Ahmed M. Kamel, 2013 .

Investigating GPS signals indoors with extreme high-sensitivity detection techniques

Robert Watson, Gérard Lachapelle, Samuli Pietila, 2005 .

Global Navigation Satellite Systems — Capabilities and Opportunities

Gérard Lachapelle, M. E. Cannon, G. Lachapelle, 2004 .

Augmentation of GPS/GLONASS For Vehicular Navigation Under Signal Masking

Mark G. Petovello, Gérard Lachapelle, S. Ryan, 1997 .

Augmentation of DGNSS With Dynamic Constraints For Marine Navigation

Gérard Lachapelle, S. Ryan, 1999 .

Quadruple Single Frequency Receiver System for Ambiguity Resolution on the Fly

Gérard Lachapelle, C. Liu, G. Lu, 1993 .

GNSS Aided In Situ Human Lower Limb Kinematics During Running

Gérard Lachapelle, M. E. Cannon, S. P. Kwakkel, 2008 .

Analysis of assistance data on AGPS performance

Gérard Lachapelle, M. E. Cannon, M D Karunanayake, 2007 .

Correction: Renaudin, V. et al. Use of Earth's Magnetic Field for Mitigating Gyroscope Errors Regardless of Magnetic Perturbation. Sensors 2011, 11, 11390-11414

Valérie Renaudin, Gérard Lachapelle, Muhammad Haris Afzal, 2012, Sensors.

A Composite Model for Indoor GNSS Signals: Characterization, Experimental Validation and Simulation

Daniele Borio, Gérard Lachapelle, Shashank Satyanarayana, 2012 .

Context-Aware Adaptive Multipath Compensation Based on Channel Pattern Recognition for GNSS Receivers

Negin Sokhandan, Gérard Lachapelle, Nesreen I. Ziedan, 2017, Journal of Navigation.

GNSS Spoofing Detection for Single Antenna Handheld Receivers

Gérard Lachapelle, John Nielsen, Ali Broumandan, 2011 .

Impact of Extended Coherent Integration Times on Weak Signal RTK in an Ultra-Tight Receiver

Mark G. Petovello, Gérard Lachapelle, G. Lachapelle, 2008 .

Field Results of a GPS/INS-Based Approach to Measuring Ship Flexure Onboard an Aircraft Carrier

Mark G. Petovello, Gérard Lachapelle, Kyle O'Keefe, 2005 .

Activity and environment classification using foot mounted navigation sensors

Gérard Lachapelle, David Garrett, Jared Bancroft, 2012, 2012 International Conference on Indoor Positioning and Indoor Navigation (IPIN).

Validation of GNSS under 500,000V Direct Current (DC) transmission lines

Gérard Lachapelle, Jared B. Bancroft, Aiden Morrison, 2012 .

Galileo signal authenticity verification using signal quality monitoring methods

Gérard Lachapelle, Ali Broumandan, Saeed Daneshmand, 2016, 2016 International Conference on Localization and GNSS (ICL-GNSS).

Galileo L1 Civil Receiver Tracking Loops' Architecture

M. Elizabeth Cannon, Olivier Julien, Gérard Lachapelle, 2007, 2007 IEEE International Symposium on Circuits and Systems.

Attitude determination using dedicated and nondedicated multiantenna GPS sensors

Gérard Lachapelle, M. E. Cannon, G. Lu, 1994 .

Failure Scenarios to be Considered with Kinematic High Precision Relative GNSS Positioning

Mark G. Petovello, Gérard Lachapelle, Andreas Wieser, 2004 .

Analysis of a High-Performance C/A-Code GPS Receiver in

Gérard Lachapelle, M. E. Cannon, 1992 .

GPS Software Receiver Enhancements for Indoor Use

Gérard Lachapelle, Bo Zheng, 2005 .

Enhanced GNSS Signal Tracking in Fading Environments using Frequency Diversity

Gérard Lachapelle, Ali Broumandan, Ranjeeth Kumar Siddakatte, 2017 .

An advanced GNSS code multipath detection and estimation algorithm

Negin Sokhandan, James T. Curran, Gérard Lachapelle, 2015, GPS Solutions.

Twin IMU-HSGPS Integration for Pedestrian Navigation

Mark G. Petovello, M. Elizabeth Cannon, Gérard Lachapelle, 2008 .

Development and Testing of a Real-Time GPS/INS Reference System for Autonomous Automobile Navigation

Gérard Lachapelle, J. Wang, 2001 .

Comparison of Vector-Based Software Receiver Implementations With Application to Ultra-Tight GPS/INS Integration

Mark G. Petovello, Gérard Lachapelle, G. Lachapelle, 2006 .

Heading and Pitch Determination Using GPS/GLONASS

Gérard Lachapelle, Jiunhan Keong, 2000, GPS Solutions.

GPS Receiver Test Plan for Week Roll Over and Y2K Critical Dates Compliance

Mark G. Petovello, Gérard Lachapelle, M. E. Cannon, 1999 .

Precise Aircraft-to-Aircraft Positioning Using a Multiple Receiver Configuration

Gérard Lachapelle, H. Sun, G. Lu, 1994 .

Differential combining for acquiring weak GPS signals

Bo Zheng, Wei Yu, Gérard Lachapelle, 2007, Signal Process..

GPS Attitude Determination Reliability Performance Improvement Using Low Cost Receivers

Gérard Lachapelle, Chaochao Wang, 2002 .

IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS

Min-Jea Tahk, Thomas G. Robertazzi, Mogens Blanke, 2022, IEEE Aerospace and Electronic Systems Magazine.

ASSESSMENT OF EMERGING TECHNOLOGIES FOR FUTURE NAVIGATION SYSTEMS IN CANADIAN TRANSPORTATION SECTOR

Gérard Lachapelle, E J Krakiwsky, K-P Schwarz, 1990 .

DGPS Kinematic Carrier Phase Signal Simulation Analysis for Precise Velocity and Position Determination

M. Elizabeth Cannon, Gérard Lachapelle, Michael C. Szarmes, 1997 .

Implementation of a Navigation Domain GNSS Signal Trackign Loop

James T. Curran, Gérard Lachapelle, Tao Lin, 2011 .

Method and apparatus for acquiring and tracking a BOC signal

M. Elizabeth Cannon, Olivier Julien, Christophe Macabiau, 2005 .

Assessing the Global Availability and Reliability of the Mars Network, a Proposed Global Navigation Satellite System for Mars

Gérard Lachapelle, Kyle O'Keefe, Susan Skone, 2005 .

Improving the reliability of personal navigation devices in harsh environments

Gérard Lachapelle, Anup Dhital, Jared Bancroft, 2015, 2015 International Conference on Indoor Positioning and Indoor Navigation (IPIN).

Ultra-tight GPS/INS Receiver Performance in the Presence of Jamming Signals

Mark G. Petovello, Gérard Lachapelle, Sergey Krasovski, 2014 .

Improving GNSS carrier-phase tracking via oscillator g-sensitivity compensation

Srinivas Bhaskar, James T. Curran, Gérard Lachapelle, 2015, IEEE Transactions on Aerospace and Electronic Systems.

Testing GPS L5 Tracking Algorithms and their Impact on Positioning Accuracy

Gérard Lachapelle, C. Mongredien, 2008 .

Signal detection performance in Rayleigh fading environments with a moving antenna

Jakob Nielsen, Gérard Lachapelle, Ali Broumandan, 2010 .

Pre‐Despreading Authenticity Verification for GPS L1 C/A Signals

Gérard Lachapelle, John Nielsen, Ali Broumandan, 2014 .

Testing GPS L5 Acquisition and Tracking Algorithms Using a Hardware Simulator

Gérard Lachapelle, C. Mongredien, M. E. Cannon, 2006 .

Comparing Multicarrier Ambiguity Resolution Methods for Geometry-Based GPS and Galileo Relative Positioning and Their Application to Low Earth Orbiting Satellite Attitude Determination

Mark G. Petovello, Wei Cao, Gérard Lachapelle, 2009 .

GPS/Loran-C: an effective system mix for vehicular navigation in mountainous areas

Gérard Lachapelle, B. Townsend, 1993 .

Evaluation of Data/Pilot Tracking Algorithms for GPS L2C Signals Using Software Receiver

Gérard Lachapelle, Surendran K. Shanmugam, Kannan Muthuraman, 2007 .

Development of a Tightly Coupled Vision/GNSS System

Mark G. Petovello, Gérard Lachapelle, Bernhard M. Aumayer, 2014 .

Design of Short Synchronization Codes for Use in Future GNSS System

Gérard Lachapelle, John Nielsen, C. Mongredien, 2008 .

Using GPS and GPS/INS Systems to Assess Relative Antenna Motion Onboard an Aircraft Carrier for Shipboard Relative GPS

Mark G. Petovello, Gérard Lachapelle, M. E. Cannon, 2005 .

Reducing Front-End Bandwidth May Improve Digital GNSS Receiver Performance

Daniele Borio, James T. Curran, Gérard Lachapelle, 2010, IEEE Transactions on Signal Processing.

Heading and Pitch Determination using GPS/GLONASS with a Common Clock

Gérard Lachapelle, Jiunhan Keong, 1998 .

Modeling HSGPS Doppler Errors in Indoor Environments for Pedestrian Dead-Reckoning

Mark G. Petovello, Gérard Lachapelle, Zhe He, 2012 .

Mitigation of attitude and gyro errors through vision aiding

Gérard Lachapelle, Laura Ruotsalainen, Jared Bancroft, 2012, 2012 International Conference on Indoor Positioning and Indoor Navigation (IPIN).

Characterization of Signal Quality Monitoring Techniques for Multipath Detection in GNSS Applications

Gérard Lachapelle, Ali Pirsiavash, Ali Broumandan, 2017, Sensors.

Hardware Simulator Models and Methodologies for Indoor Performance Assessment of High Sensitivity Global Positioning Satellite Receivers

Gérard Lachapelle, Sanjeet Singh, Elizabeth Cannon, 2004 .

Development and Testing of an Optimal Cascading Scheme to Resolve Multi Frequency Carrier Phase Ambiguities

Mark G. Petovello, Gérard Lachapelle, M. E. Cannon, 2002 .

Use of a Covariance Analysis Technique for Predicting Performance of Regional Area Differential Code and Carrier-Phase

Gérard Lachapelle, John F. Raquet, Luiz Paulo Fortes, 1998 .

Pre-Correlation Noise and Interference Suppression for Use in Direct-Sequence Spread Spectrum Systems with Periodic PRN Codes

Robert Watson, Gérard Lachapelle, John Nielsen, 2006 .

Kinematic Zenith Tropospheric Delay Estimation with GNSS PPP in Mountainous Areas

Gérard Lachapelle, Kyle O'Keefe, Paul Gratton, 2021, Sensors.

GPS for Marine Navigation and Hydrography

Gérard Lachapelle, Peter Kielland, M. J. Casey, 1992 .

Combined L1/L5 Kalman Filter-Based Tracking for Weak Signal Environments

Gérard Lachapelle, Dina Megahed, 2009 .

DGPS RTK Positioning Using a Reference Network

Gérard Lachapelle, B. Townsend, Paulo Alves, 2000 .

Special order geodetic operations for a Canadian Pacific Railway tunnel in the Canadian Rockies

Gérard Lachapelle, M. Elizabeth Cannon, M. Dennler, 1984 .

Improvements of USCG RTK Positioning Performance Using External NOAA Tropospheric Corrections Integrated with a Multiple Reference Station Approach

Gérard Lachapelle, Y. W. Ahn, P. Alves, 2004 .

Evaluation of GPS-Aided Artillery Positioning and Orientation Methods

Gérard Lachapelle, M. E. Cannon, J. Bird, 1998 .

Use of phase data for accurate differential GPS kinematic positioning

Gérard Lachapelle, W. Falkenberg, G. Lachapelle, 1987 .

Tracking performance of a HSGPS receiver under avalanche deposited snow

Gérard Lachapelle, J. B. Schleppe, G. Lachapelle, 2008 .

An Adaptive Neuro-Fuzzy Model for Bridging GPS Outages in MEMS-IMU/GPS Land Vehicle Navigation

Naser El-Sheimy, Gérard Lachapelle, W. Abdel-Hamid, 2004 .

Optimizing GNSS signals’ tracking under strong ionospheric scintillation in Brazil using the CIGALA network, baseband data and a software receiver

Gérard Lachapelle, Tao Lin, Gérard Lachapelle, 2014 .

Degraded GPS Signal Measurements With A Stand-Alone High Sensitivity Receiver

Gérard Lachapelle, Glenn MacGougan, R. Klukas, 2002 .

Precise real-time kinematic differential GPS using a cellular radio modem

Gérard Lachapelle, M. E. Cannon, P. Fenton, 1992, IEEE PLANS 92 Position Location and Navigation Symposium Record.

Integration of GPS and INS Using Float Ambiguities with Application to Precise Positioning for JPALS

Mark G. Petovello, Gérard Lachapelle, M. E. Cannon, 2004 .

SPOOFING COUNTERMEASURE FOR GNSS RECEIVERS - A REVIEW OF CURRENT AND FUTURE RESEARCH TRENDS 4 th International Colloquium on Scientific and Fundamental Aspects of the Galileo Programme European Space Agency, Prague, 4-6 December 2013

Gérard Lachapelle, Saeed Daneshmand, Ali Jafarnia-Jahromi, 2013 .

GPS L1 Indoor Fading Characterization using Block Processing Techniques

Daniele Borio, Gérard Lachapelle, Shashank Satyanarayana, 2009 .

Investigating the Impact of Ionospheric Scintillation using a GPS Software Receiver

Gérard Lachapelle, Susan Skone, G. Lachapelle, 2005 .

Multi-antenna GNSS and INS / Odometer Coupling for Robust Vehicular Navigation

Gérard Lachapelle, Ali Broumandan, Niranjana Vagle, 2017 .

Building a Yield Map from Geo‐referenced Harvest Measurements

Gérard Lachapelle, G. W. Haverland, S. C. Nolan, 2015 .

A Double Antenna Approach toward Detection Classification and Mitigation of GNSS Structural Interference

Negin Sokhandan, Gérard Lachapelle, Ali Broumandan, 2014 .

Analysis of IRNSS over Indian Subcontinent

Gérard Lachapelle, G. Lachapelle, Vijay Kumar, 2011 .

Dynamic GPS Attitude Performance Using INS/GPS Reference

Gérard Lachapelle, G. Lu, Dale A.G. Arden, 1994 .

GPS differential positioning technologies for hydrographic surveying

Gérard Lachapelle, W. Falkenberg, Peter Kielland, 1988, IEEE PLANS '88.,Position Location and Navigation Symposium, Record. 'Navigation into the 21st Century'..

Performance analysis of a narrow correlator spacing receiver for precise static GPS positioning

Gérard Lachapelle, M. E. Cannon, S. L. Frodge, 1994, Proceedings of 1994 IEEE Position, Location and Navigation Symposium - PLANS'94.

Soil salinity mapping with electromagnetic induction and satellite-based navigation methods

Gérard Lachapelle, M. E. Cannon, G. Lachapelle, 1994 .

Spoofing Mitigation in Multipath Environments Using Space-Time Processing

Gérard Lachapelle, Ali Broumandan, Saeed Daneshmand, 2013 .

Performance Analysis of MEMS IMU/HSGPS/Magnetic Sensor Integrated System in Urban Canyons

Mark G. Petovello, Gérard Lachapelle, S. Godha, 2005 .

Marine DGPS Using Code and Carrier in a Multipath Environment

Gérard Lachapelle, W. Falkenberg, Gérard Lachapelle, 1989 .

A Network-based GNSS Structural Interference Detection, Classification and Source Localization

Gérard Lachapelle, Ali Broumandan, Saeed Daneshmand, 2015 .

Augmentation of GPS for Hydrographic Applications Under Signal Masking

Gérard Lachapelle, J. Stephen, R. Hare, 1999 .

Relative positioning of multiple moving platforms using GPS

Gérard Lachapelle, N. Luo, 2003 .

The Use of Multiple Reference Station VRS for Precise Kinematic Positioning

Gérard Lachapelle, B. Townsend, P. Alves, 2001 .

VEHICULAR NAVIGATION IN URBAN CANYONS USING A HIGH SENSITIVITY GPS RECEIVER AUGMENTED WITH A MEDIUM-GRADE IMU

Gérard Lachapelle, Jussi Collin, O. Mezentsev, 2003 .

Positioning of the cp rail mount macdonald tunnel

Gérard Lachapelle, M. Dennler, D. Neufeldt, 1988 .

GPS UNDER COVER : THE EFFECT OF FOLIAGE ON VEHICULAR NAVIGATION

Gérard Lachapelle, Jamie Henriksen, 1995 .

Practical Results of Hybrid AOA/TDOA Geo-Location Estimation in CDMA Wireless Networks

Gérard Lachapelle, John Nielsen, Ali Broumandan, 2008, 2008 IEEE 68th Vehicular Technology Conference.

Quantization Effects in GNSS Receivers in The Presence of Interference

James T. Curran, Gérard Lachapelle, Mohammad Abdizadeh, 2012 .

ULTRA-PRECISE POSITIONING FOR SPORT APPLICATIONS

Gérard Lachapelle, Richard B. Ong, Aiden Morrison, 2009 .

DGPS Kinematic Carrier Phase Signal Simulation Analysis in the Velocity Domain

Gérard Lachapelle, M. E. Cannon, S. Ryan, 1997 .

Performance of Integrated HSGPS-IMU Technology for Pedestrian Navigation under Signal Masking

Gérard Lachapelle, M. E. Cannon, S. Godha, 2006 .

Development of an Integrated Low-Cost GPS/Rate Gyro System for Attitude Determination

Gérard Lachapelle, G. Lachapelle, M. Cannon, 2004, Journal of Navigation.

GPS System Integration and Field Approaches in Precision Farming

Gérard Lachapelle, M. E. Cannon, H. Gehue, 1994 .

Effects of the 2012–2013 solar maximum on GNSS signals in Brazil

Gérard Lachapelle, G. Lachapelle, Tao Lin, 2015, GPS Solutions.

Long Distance Kinematic Carrier-Phase Ambiguity Resolution Using a Simulated Reference Receiver Network

Gérard Lachapelle, John F. Raquet, 1997 .

HOW WILL GALILEO IMPROVE POSITIONING PERFORMANCE

Gérard Lachapelle, Kyle O'Keefe, M. E. Cannon, 2002 .

Water Level Profiling with GPS

Gérard Lachapelle, G. Lu, Rob Hare, 1993 .

DEVELOPMENT AND RESULTS OF A PRECISION FARMING SYSTEM USING GPS AND GIS TECHNOLOGIES

Gérard Lachapelle, M. E. Cannon, D. C. Penney, 1997 .

Reliability Analysis Applied to Kinematic GPS Position and Velocity Estimation

Gérard Lachapelle, G. Lu, G. Lachapelle, 1991 .

Integration of inertial and Gps‐satellite techniques for precise marine positioning

Gérard Lachapelle, K. P. Schwarz, R. V. C. Wong, 1985 .

PLL Performance for Signals in the Presence of Thermal noise, Phase noise, and Ionospheric Scintillation

Gérard Lachapelle, Susan Skone, W. Yu, 2006 .

Controlled GPS Signal Simulation for Indoors

Gérard Lachapelle, Richard Klukas, Tao Hu, 2007, Journal of Navigation.

Reliability of an Adaptive Integrated System through Consistency Comparisons of Accelerometers and GNSS Measurements

Gérard Lachapelle, Jared B. Bancroft, Anup Dhital, 2012 .

Use of Multiple Reference GNSS Stations for RTK Positioning

Gérard Lachapelle, G. Lachapelle, M. Cannon, 2000 .

C/N 0 estimation: design criteria and reliability analysis under global navigation satellite system (GNSS) weak signal scenarios

Daniele Borio, Gérard Lachapelle, Shashank Satyanarayana, 2012 .

ASF Effect Analysis Using an Integrated GPS/eLORAN Positioning System

Gérard Lachapelle, Ning Luo, Elizabeth Cannon, 2006 .

Yield Measurement and Field Mapping With an Integrated GPS System

P. C. Robert, R. H. Rust, W. E. Larson, 1995 .

Assessing Probability of Correct Ambiguity Resolution in the Presence of Time‐Correlated Errors

Mark G. Petovello, Gérard Lachapelle, Kyle O'Keefe, 2006 .

PERFORMANCE EVALUATION OF SEVERAL WIDE-AREA GPS SERVICES

Gérard Lachapelle, M. E. Cannon, Yang Gao, 2002 .

The Effects of Network Geometry on Network RTK Using Simulated GPS Data

Gérard Lachapelle, Y. W. Ahn, P. Alves, 2003 .

GPS RTK Positioning Using a Regional Reference Network: Theory and Results

Gérard Lachapelle, M. E. Cannon, B. Townsend, 2001 .

Determination and Reduction of GPS Reference Station Multipath Using Multiple Receivers

Gérard Lachapelle, G. Lachapelle, C. J. Raquet, 1996 .

GPS Observables and Error Sources for Kinematic Positioning

Gérard Lachapelle, G. Lachapelle, 1991 .

High-Sensitivity GNSS Limitations in RF Perturbed Environments

Gérard Lachapelle, 2013 .

Precise marine DGPS positioning using P code and high performance C/A code technologies

Gérard Lachapelle, M. E. Cannon, B. Townsend, 1993 .

GNSS Tracking Performance Enhancement in Fading Environments Using Frequency Diversity Combining

Gérard Lachapelle, Ali Broumandan, Ranjeeth Kumar Siddakatte, 2015 .

NAVSTAR/GPS Single Point Positioning at Sheltech Canada — Preliminary Results*

Gérard Lachapelle, Norman Beck, 1982 .

Performance Evaluation of Signal Quality Monitoring Techniques for GNSS Multipath Detection and Mitigation

Gérard Lachapelle, Ali Pirsiavash, Ali Broumandan, 2017 .

Spatial/Temporal Characterization of the GNSS Multipath Fading Channels

Gérard Lachapelle, Ali Broumandan, Seyed Nima Sadrieh, 2010 .

Stabilizing ill-conditioned linear complementarity problems

Gérard Lachapelle, Peiliang Xu, E. Cannon, 1999 .

Demonstration of Signal Tracking and Scintillation Monitoring Under Equatorial Ionospheric Scintillation with a Multi-Frequency GNSS Software Receiver

Gérard Lachapelle, Tao Lin, 2014 .

Temporal impact of selected GPS errors on point positioning

Mark G. Petovello, Gérard Lachapelle, M. E. Cannon, 2002 .

High Resolution Delay Estimation in Urban GNSS Vehicular Navigation

Negin Sokhandan, James T. Curran, Gérard Lachapelle, 2012 .

Network Real-Time Kinematic Performance Analysis Using Rtcm 3.0 and the Southern Alberta Network

Gérard Lachapelle, Kyle O'Keefe, 2007 .