On detection of observation faults in the observation and position domains for positioning of intelligent transport systems

Intelligent transportation systems (ITS) depend on global navigation satellite systems (GNSS) as a major positioning sensor, where the sensor should be able to detect and exclude faulty observations to support its reliability. In this article, two fault detection and exclusion (FDE) approaches are discussed. The first is its application in the observation domain using Chi-square test in Kalman filter processing. The second approach discusses FDE testing in the positioning domain using the solution separation (SS) method, where new FDE forms are presented that are tailored for ITS. In the first form, the test is parameterized along the direction of motion of the vehicle and in the cross-direction, which are relevant to applications that require lane identification and collision alert. A combined test is next established. Another form of the test is presented considering the maximum possible positioning error, and finally a direction-independent test. A new test that can be implemented in the urban environment is presented, which takes into account multipath effects that could disrupt the zero-mean normal distribution assumption of the positioning errors. Additionally, a test is presented to check that the position error resulting from the remaining measurements lies within acceptable limits. The proposed methods are demonstrated through a kinematic test run in various environments that may be experienced in ITS.

[1]  A. El-Mowafy,et al.  GNSS multi-frequency receiver single-satellite measurement validation method , 2014, GPS Solutions.

[2]  A. Leick.  GPS satellite surveying , 1990 .

[3]  Mark A. Sturza,et al.  Navigation System Integrity Monitoring Using Redundant Measurements , 1988 .

[4]  Per Enge,et al.  Incorporating GLONASS into Aviation RAIM Receivers , 2013 .

[5]  P. Groves,et al.  Height Aiding, C/N0 Weighting and Consistency Checking for GNSS NLOS and Multipath Mitigation in Urban Areas , 2013, Journal of Navigation.

[6]  Rustam B. Rustamov,et al.  Multifunctional Operation and Application of GPS , 2018 .

[7]  Ahmed El-Mowafy.  Diagnostic Tools Using a Multi-Constellation Single-Receiver Single-Satellite Data Validation Method , 2015 .

[8]  Heidi Kuusniemi,et al.  User-Level Reliability and Quality Monitoring in Satellite-Based Personal Navigation , 2005 .

[9]  Ahmed El-Mowafy,et al.  Positioning Integrity, Availability and Precision for Journey Planning and Navigation Using GNSS Integrated with Low-Cost Sensors , 2018 .

[10]  Lei Wang,et al.  Intelligent Urban Positioning using Multi-Constellation GNSS with 3D Mapping and NLOS Signal Detection , 2012 .

[11]  Lei Wang,et al.  Multi-Constellation GNSS Performance Evaluation for Urban Canyons Using Large Virtual Reality City Models , 2012 .

[12]  Ahmed El-Mowafy,et al.  Advanced receiver autonomous integrity monitoring using triple frequency data with a focus on treatment of biases , 2017 .

[13]  D. Imparato.  Detecting multi-dimensional threats : A comparison of solution separation test and uniformly most powerful invariant , 2014 .

[14]  Antonio F. Gómez-Skarmeta,et al.  Monitoring the Position Integrity in Road Transport Localization Based Services , 2006, IEEE Vehicular Technology Conference.

[15]  Per Enge,et al.  Weighted RAIM for Precision Approach , 1995 .

[16]  Mathieu Joerger,et al.  Fault detection and exclusion using solution separation and chi-squared ARAIM , 2016, IEEE Transactions on Aerospace and Electronic Systems.

[17]  Peter J. G. Teunissen,et al.  The Minimal Detectable Bias for GNSS Observations with a Single Receiver Setup and a Geometry-Free Model , 2009 .

[18]  P. Teunissen.  Testing Theory: an introduction , 2009 .

[19]  Naser El-Sheimy,et al.  MEMS-Based Integrated Navigation , 2010 .

[20]  Ahmed Mohamed,et al.  Attitude Determination from GNSS Using Adaptive Kalman Filtering , 2005 .

[21]  Matthew D. Powe,et al.  A Flexible RAIM Algorithm , 1997 .

[22]  Li-Ta Hsu,et al.  NLOS Correction/Exclusion for GNSS Measurement Using RAIM and City Building Models , 2015, Sensors.

[23]  R. Grover Brown,et al.  A Baseline GPS RAIM Scheme and a Note on the Equivalence of Three RAIM Methods , 1992 .

[24]  Andrew G. Dempster,et al.  Analysis of early late phase in single-and dual-frequency GPS receivers for multipath detection , 2010 .

[25]  Ahmed El-Mowafy,et al.  Limited sensitivity analysis of ARAIM availability for LPV-200 over Australia using real data , 2016 .

[26]  Per Enge,et al.  Optimal Positioning for Advanced RAIM , 2012 .

[27]  Mathieu Joerger,et al.  Solution Separation Versus Residual-Based RAIM , 2014 .

[28]  W. Baarda,et al.  A testing procedure for use in geodetic networks. , 1968 .

[29]  P. Enge,et al.  Paired overbounding for nonideal LAAS and WAAS error distributions , 2006, IEEE Transactions on Aerospace and Electronic Systems.

[30]  Emanuela Falletti,et al.  A novel local integrity concept for GNSS receivers in urban vehicular contexts , 2014, 2014 IEEE/ION Position, Location and Navigation Symposium - PLANS 2014.

[31]  Nobuaki Kubo,et al.  Integrity monitoring of vehicle positioning in urban environment using RTK-GNSS, IMU and speedometer , 2017 .

[32]  Bradford W. Parkinson,et al.  A Basis for the Development of Operational Algorithms for Simplified GPS Integrity Checking , 1987 .

[33]  Andreas Wieser,et al.  Robust and Fuzzy Techniques for Parameter Estimation and Quality Assessment in GPS , 2002 .

[34]  N. Kubo,et al.  A new Approach for Positioning Integrity Monitoring of Intelligent Transport Systems Using Integrated RTK-GNSS, IMU and Vehicle Odometer , 2019 .

[35]  Nobuaki Kubo,et al.  Integrity monitoring for Positioning of intelligent transport systems using integrated RTK-GNSS, IMU and vehicle odometer , 2018 .

[36]  Juliette Marais,et al.  GNSS Position Integrity in Urban Environments: A Review of Literature , 2018, IEEE Transactions on Intelligent Transportation Systems.

[37]  Ali Pirsiavash,et al.  Detection and De-weighting of Multipath-affected Measurements in a GPS/Galileo Combined Solution , 2019, 2019 European Navigation Conference (ENC).

[38]  Chris Rizos,et al.  Generalised measures of reliability for multiple outliers , 2010 .

[39]  Juan Blanch,et al.  Baseline advanced RAIM user algorithm and possible improvements , 2015, IEEE Transactions on Aerospace and Electronic Systems.

[40]  Peter Teunissen,et al.  GPS for geodesy , 1996 .