Lawrence Sparks

发表

Sudden ionospheric delay decorrelation and its impact on the Wide Area Augmentation System (WAAS)

Anthony J. Mannucci, Attila Komjathy, Lawrence Sparks, 2004 .

Automated daily processing of more than 1000 ground‐based GPS receivers for studying intense ionospheric storms

Anthony J. Mannucci, Attila Komjathy, Lawrence Sparks, 2005 .

Estimating ionospheric delay using kriging: 2. Impact on satellite‐based augmentation system availability

Juan Blanch, Lawrence Sparks, Nitin Pandya, 2011 .

Estimating ionospheric delay using kriging: 1. Methodology

Juan Blanch, Lawrence Sparks, Nitin Pandya, 2011 .

Estimating SBAS ionospheric delays without grids: the conical domain approach

Anthony J. Mannucci, Lawrence Sparks, A. Komjathy, 2004 .

An Assessment of the Current WAAS Ionospheric Correction Algorithm in the South American Region

Xiaoqing Pi, Anthony J. Mannucci, Attila Komjathy, 2002 .

Efficient line-by-line calculation of absorption coefficients to high numerical accuracy

Lawrence Sparks, L. Sparks, 1997 .

Kriging as a Means of Improving WAAS Availability

Juan Blanch, Lawrence Sparks, Nitin Pandya, 2010 .

On the ionospheric impact of recent storm events on satellite-based augmentation systems in middle and low-latitude sectors

Xiaoqing Pi, Anthony J. Mannucci, Attila Komjathy, 2003 .

Improving WAAS Availability Along the Coast of California

Eric Altshuler, Lawrence Sparks, 2014 .

An Assessment of the Current WAAS Algorithm in the South American Region

Anthony J. Mannucci, Lawrence Sparks, A. Komjathy, 2002 .

The Ionospheric Impact of the October 2003 Storm Event on WAAS

Anthony J. Mannucci, Attila Komjathy, Anthea J. Coster, 2004 .

The ionospheric impact of the October 2003 storm event on Wide Area Augmentation System

Anthony J. Mannucci, Attila Komjathy, Anthea J. Coster, 2005 .

Automated daily process for global ionospheric total electron content maps and satellite ocean altimeter ionospheric calibration based on Global Positioning System data

Xiaoqing Pi, Anthony J. Mannucci, Byron A. Iijima, 1999 .

Assessment of global TEC mapping using a three-dimensional electron density model

Xiaoqing Pi, Anthony J. Mannucci, Byron A. Iijima, 1999 .

A New Model for Retrieving Slant TEC Corrections for Wide Area Differential GPS

Anthony J. Mannucci, Brian Wilson, B. A. Iijima, 2000 .

A new ionospheric model for wide area differential GPS: the multiple shell approach

Xiaoqing Pi, Brian Wilson, Lawrence Sparks, 2002 .

Extreme ionospheric storms and their impact on WAAS

Anthony J. Mannucci, Lawrence Sparks, A. Komjathy, 2005 .

Ionospheric total electron content perturbations monitored by the GPS global network during two northern hemisphere winter storms

Xiaoqing Pi, Anthony J. Mannucci, Byron A. Iijima, 1998 .

The WAAS Ionospheric Spatial Threat Model

Eric Altshuler, Lawrence Sparks, Robert M. Fries, 2001 .

Observations of Global and Regional Ionospheric Irregularities and Scintillation Using GNSS Tracking Networks

Xiaoqing Pi, Anthony J. Mannucci, Yoaz Bar-Sever, 2013 .