NAVSYS GPS papers are available for downloading in Adobe PDF or you may request a hard copy via email. The papers are listed below in reverse chronological order.
List of Publications
23-11-002 Bridging the Rural Divide Through Space
National Academy of Engineering Member Led Webinar, November 2023
23-11-01 PNTaaS Leveraging Commercial SATCOM
Proceedings of 17th Annual PNT Symposium, Stanford University's Center for Position, Navigation and Time (SCPNT), November 2023
23-06-002 GNSS Interference Detection using Machine Learning in a tightly coupled SDR and Assured PNT Solution
Proceedings of 2023 Joint Navigation Conference, San Diego, CA, June 2023
23-06-001 Leveraging Commercial SATCOM services as Signals of Opportunity to provide PNT as a Service (PNTaaS)
Proceedings of 2023 Joint Navigation Conference, San Diego, CA, June 2023
23-05-001 PNT as a Service (PNTaaS): Leveraging SATCOM for PNT
Proceedings of Space-based Positioning, Navigation & Timing National Advisor Board, May 2023
Proceedings of IEEE/ION PLANS 2023 ©2023 IEEE
22-06-003 Performance Results using C-Band GEO Satellites as Signals of Opportunity (SoOP)
Proceedings of 2022 Joint Navigation Conference, San Diego, CA, June 2022
22-06-002 Tightly Coupled Assured PNT using a SoOP Open Architecture PNT (SOAP) Software Defined Radio
Proceedings of 2022 Joint Navigation Conference, San Diego, CA, June 2022
22-06-001 Signal of Opportunity Selection during GPS Denial using Machine Learning
Proceedings of 2022 Joint Navigation Conference, San Diego, CA, June 2022
21-08-003 Design and Test Results of a System-of-systems Open Architecture PNT (SOAP) Software Defined Radio
Proceedings of 2021 Joint Navigation Conference, Cincinnati, KY, August 2021
21-08-002 Open Architecture GPS Inertial Simulator for Assured-PNT Development and Testing
Proceedings of 2021 Joint Navigation Conference, Cincinnati, KY, August 2021
21-08-001 Open Architecture Vision-aided Navigation Updates using the MISB Unmanned Air System (UAS) DataLink
Proceedings of 2021 Joint Navigation Conference, Cincinnati, KY, August 2021
2019
2018
18-07-001 Collaborative Navigation using Tactical Radio and Mission Module Network Assistance
Proceedings of Joint Navigation Conference 2018, Long Beach, CA, July 2018
2015
15-06-004 Collaborative GPS Signal Acquisition Algorithms for Military GPS Applications
Proceedings of Joint Navigation Conference 2015, Orlando, FL, June 2015
15-06-003 Signal Architect GPS Jamming Demonstration Kit for Military GPS User Equipment Training
Proceedings of Joint Navigation Conference 2015, Orlando, FL, June 2015
15-06-002 Improved Inertial Navigation Performance using a Modular Inertial Integration Approach with Embedded Sensor Model Calibration
Proceedings of Joint Navigation Conference 2015, Orlando, FL, June 2015
15-06-001 Using Commercial Frequency Agile Transceivers for Multi-GNSS Military Applications
Proceedings of Joint Navigation Conference 2015, Orlando, FL, June 2015
2014
14-06-004 Field Test Results of Distributed Network Opportunistic Positioning (DiNO-Pos) using Software Defined Radios
Proceedings of Joint Navigation Conference (JNC) 2014, Orlando, FL, June 2014
14-06-003 Multipath Effects and Error Mitigation on the M-Code Signal
Proceedings of Joint Navigation Conference (JNC) 2014, Orlando, FL, June 2014 (email request)
14-06-002 Signal Architect GPS Jamming Demonstration Kit for Military GPS User Equipment Training
Proceedings of Joint Navigation Conference (JNC) 2014, Orlando, FL, June 2014
14-06-001 Navigation Enhancements for Android-based Military Systems via NavWarrior App
Proceedings of Joint Navigation Conference (JNC) 2014, Orlando, FL, June 2014
2013
13-09-002 SAASM GPS Location Service for Android Smart Phones
Proceedings of ION GNSS+ 2013, Nashville, Tennessee, September 2013
13-09-001 Open Source SDR Platform for GNSS Recording Simulation and Tracking
Proceedings of ION GNSS+ 2013, Nashville, TN, September 2013
2012
12-09-001 Broadband GPS Data Capture for Signal and Interference Analysis
Proceedings of ION GNSS 2012, Nashville, TN, September 2012
12-06-003 GPS Signal Simulation and Interference Testing using a Software Defined Radio Based GPS Signal Simulator
Proceedings of 2012 Joint Navigation Conference, Colorado Springs, CO, June 2012
12-06-002 Distributed Network Opportunistic Positioning (DiNO)
Proceedings of 2012 Joint Navigation Conference, Colorado Springs, CO, June 2012
12-06-001 Anti-Spoof Protection of Civilian GPS Devices
Proceedings of 2012 Joint Navigation Conference, Colorado Springs, CO, June 2012 (email request)
12-05-001 Simulating GPS Signals - It doesn’t have to be Expensive
GPS World, May 2012
12-03-002 Unmanned Air Systems - Precision Navigation for Critical Operations
GPS World, March 2012
12-03-001 GPS Technologies and Threat Mitigation for Wide Area Sensing
RMTA Wide Area Sensing Conference, March 2012
12-01-001 Airborne Networking for Augmented Positioning, Navigation and Timing
Airborne Networking Symposium, Solomons Island, MD, January 2012
2011
11-09-004 Dynamic Reconfiguration in a GNSS SDR for Muti-Constellation Operation
ION GNSS 2011, Portland, OR, September 2011
11-09-003 GPS M'-Code and P-Code Signal Simulation Using an Open Source Radio Platform
ION GNSS 2011, Portland, OR, September 2011
11-09-002 SAT GEN GNSS Signal Simulation Software
ION GNSS 2011, Portland, OR, September 2011
11-09-001 Precision Navigation for UAS Critical Operations
Proceedings of ION GNSS 2011, Portland, OR, September 2011
11-06-007 GPS Defender Android Application for GPS Interference Detection
2011 Joint Navigation Conference, Colorado Springs, CO, June 2011
11-06-006 Ultra-Weak GPS Signal Processing using a SAASM Receiver
2011 Joint Navigation Conference, Colorado Springs, CO, June 2011
11-06-005 Collaborative Navigation using GPS Distributed Aperture Positioning
2011 Joint Navigation Conference, Colorado Springs, CO, June 2011
11-06-004 GPS M-code Signal Simulation using an Open Source Radio Platform
2011 Joint Navigation Conference, Colorado Springs, CO, June 201
11-06-003 Advantages of Dynamically Reconfigurable Software Defined Radios for Military GPS Applications
2011 Joint Navigation Conference, Colorado Springs, CO, June 2011
11-06-002 GPS Signal Simulation using Open Source GPS Receiver Platform
Proceedings of the 21st Virginia Tech Symposium on Wireless Personal Communications, Blacksburg, VA, June 2011
11-06-001 GPS Distributed Aperture Positioning (GDAP)
Proceedings of the 21st Virginia Tech Symposium on Wireless Personal Communications, Blacksburg, VA, June 2011
2010
10-12-001 Dynamically Reconfigurable Software Defined Radio for GNSS Applications
Proceedings of SDR 2010 Technical Conference and Product Exposition, Washington, DC, December 2010
10-09-001 PPS Positioning in Weak Signal GPS Environments using a TIDGET Sensor
Proceedings of ION GNSS 2010, Portland, OR, September 2010
10-06-004 Embedding a Software GPS Application within a JTRS Software Defined Radio Architecture
2010 Wireless Symposium and Summer School, Blacksburg, VA, June 2010
10-06-002 Target Location Technology for Ground Based Observers
2010 Joint Navigation Conference, Orlando, FL, June 2010
10-06-001 TIDGET-SAASM Low Cost, Low Power Tracking Solution
2010 Joint Navigation Conference, Orlando, FL, June 2010
Proceedings of Joint Armaments Conference 2010, Dallas, TX, May 2010
10-02-001 Civil Applications of the GPS Jamming Detection and Location (JLOC) System
GPS Jamming & Interference – A Clear and Present Danger, National Physical Laboratory, Teddington, UK, February 2010
2009
09-12-001 Low Power SDR Networked Architecture for Digital Camera Image Tagging
SDR ’09 Technical Conference and Product Exposition, Washington, DC, December 2009
09-10-002 Flight Test Results for Miniature GPS/Inertial Camera Payload
ION GNC Challenges For Miniature Autonomous Systems Workshop, Fort Walton Beach, FL, October 2009
09-10-001 GPS Ephemeris & Ionospheric Correction Sharing Service (GEISS) for Precision Guided Munitions
PSTS-09, Laurel, MD, October 2009
09-09-001 Flight Test Results of Video-Aided Navigation from Images
ION GNSS 2009, Savannah, GA, September 2009
09-06-003 Simulation Results of Precision Guided Munition Performance using Precision GPS Ephemeris (PGE) Guidance
Joint Navigation Conference 2009, Orlando, FL, June 2009
09-06-002 Precision GPS Ephemeris (PGE) Enabled GPS Inertial System
Joint Navigation Conference 2009, Orlando, FL, June 2009
09-06-001 GPS/Inertial Micro-Camera for Oceanographic Properties and Shallow Water Hydrography
Joint Navigation Conference 2009, Orlando, FL, June 2009
09-005-001 Real-time Target Geo-Location and Web-Based Situational Awareness using Tactical UAVs
IDGA’s 5th Annual Unmanned Aircraft Systems Conference, Washington, DC, May 2009
2008
08-11-002 Real-Time Target Geo-Location and Web-Based Situational Awareness using Tactical UAVs
UAS Payloads Conference, San Diego, CA, November 2008
08-11-001 Low Cost, Low Power Geotagging Solution for Digital Cameras
Proceedings of International Symposium on GPS/GNSS 2008, Tokyo, Japan, Nov. 2008
08-10-001 Indoor Navigation Using a Software Defined Radio
Proceedings of SDR '08 Technical Conference, Washington, DC, Oct. 2008
08-09-007 GNSS Wristwatch Device for Networked Operations Supporting Location Based Services
Coordinates, Vol. 4, Issue 9, Sep. 2008
Proceedings of ION GNSS 2008, Savannah, GA, Sep. 2008
Proceedings of ION GNSS 2008, Savannah, GA, Sep. 2008
08-09-004 Increasing Location Accuracy with Network Augmented GPS for Mine Countermeasures (PowerPoint Only)
Proceedings of ION GNSS 2008, Savannah, GA, September 2008
08-09-003 Multipath Mitigation Algorithm Results Using TOA Beacons for Integrated Indoor Navigation (PowerPoint Only)
Proceedings of ION GNSS 2008, Savannah, GA, September 2008
08-04-001 GNSS Wristwatch Device for Networked Operations Supporting Location Based Services
Proceedings of ENC-GNSS 2008, Toulouse, France, April 2008
Proceedings of 31st Annual AAS Guidance and Control Conference, Breckenridge, CO, February 2008
Proceedings of the ION National Technical Meeting 2008, San Diego, CA, January 2008
2007
Proceedings of SDR Forum 2007, Denver, CO, November 2007
07-11-002 Wideband Radar Adaptive Beamforming Using Frequency-Domain Derivative Based Updating
Proceedings of SDR Forum 2007, Denver, CO, November 2007
07-11-001 Constrained Beamforming for Space GPS Navigation
Proceedings of SDR Forum 2007, Denver, CO, Nov. 2007
Proceedings of PCI Geomatics Tower Club Applications Seminar, Vienna, VA, October 2007
07-09-003 Flight Test Results of a Video-Aided GPS_Inertial Navigation System
Proceedings of ION GNSS 2007, Ft. Worth, TX, September 2007
07-09-002 An Integrated Software Defined Radio Navigation System for Space
Proceedings of ION GNSS 2007, Ft. Worth, TX, September 2007
07-09-001 Constrained Beamforming for Space GPS Navigation
Proceedings of ION GNSS 2007, Ft. Worth, TX, September 2007
07-02-001 GPS/INS/Star Tracker Navigation Using a Software Defined Radio
Proceedings of 29th Annual AAS Guidance and Control Conference, Beckenridge, CO, February 2007
07-01-003 Virtual Anechoic Chamber Using GPS Signals
The Journal of Navigation (2007), 60: 33-43 Cambridge University Press, The Royal Institute of Navigation
07-01-002 Test Results from a Novel Passive Bistatic GPS Radar Using a Phased Sensor Array
Proceedings of the ION National Technical Meeting 2007, San Diego, CA, January 2007
07-01-001 GPS Tracking Location-Based Service Using Wristwatch GeoZigBee Sensors
Proceedings of the ION National Technical Meeting 2007, San Diego, CA, January 2007
2006
06-11-003 Implementing a GPS Waveform under the Software Communication Architecture
Proceedings of SDR Forum 2006, Orlando, FL, November 2006
06-11-002 Integrated GPS/INS/Star Tracker Space Navigation System Using a Software Defined Radio
Proceedings of SDR Forum 2006, Orlando, FL, November 2006
06-11-001 A Wireless GPS Wristwatch Tracking Solution
Proceedings of SDR Forum 2006, Orlando, FL, November 2006
06-09-005 Indoor Navigation Test Results using an Integrated GPS/TOA/Inertial Navigation System
Proceedings of ION GNSS 2006, Fort Worth, TX, September 2006
06-09-004 GeoZigBee: A Wireless GPS Wristwatch Tracking Solution
Proceedings of ION GNSS 2006, Fort Worth, TX, September 2006
06-09-003 Implementing a GPS Waveform under Software Communications Architecture
Proceedings of ION GNSS 2006, Fort Worth, TX, September 2006
06-09-002 A Robust GPS/INS Kinematic Integrity Algorithm for Aircraft Landing
Proceedings of ION GNSS 2006, Fort Worth, TX, September 2006
06-09-001 Real-Time Web-based Image Distribution Using an Airborne GPS/Inertial Image Server
Proceedings of ION GNSS 2006, Fort Worth, TX, September 2006
06-06-001 Near Real-Time Dissemination of Geo-Referenced Imagery by an Enterprise Server
Proceedings of 2006 GeoTec Event, Ottawa, Ontario, Canada, June 2006
06-04-001 Integrated GPS/TOA Navigation using a Positioning and Communication Software Defined Radio
Proceedings of IEEE/ION Position Location and Navigation Symposium, PLANS 2006, San Diego, CA, April 2006
2005
05-11-001 Design and Test Results of a Software Defined Radio for Indoor Navigation
Proceedings of 2005 Software Defined Radio Technical Conference, Orange County, CA, November 2005
Alison Brown, Yan Lu, and Janet Nordlie
05-09-004 Remote Sensing Using Bistatic GPS and a Digital Beam Steering Receiver
Proceedings of ION GNSS 2005, Long Beach, CA, September 2005
05-09-003 Integrated GPS/TOA Navigation Using a Positioning and Communication Software Defined Radio
Proceedings of ION GNSS 2005, Long Beach, CA, September 2005)
05-09-002 GPS Multipath Mitigation Using a Three Dimensional Phased Array
Proceedings of ION GNSS 2005, Long Beach, CA, September 2005
05-09-001 Testing of Ultra-Tightly-Coupled GPS Operation Using a Precision GPS/Inertial Simulator
Proceedings of ION GNSS 2005, Long Beach, CA, September 2005
05-07-001 Remote Sensing using Bistatic GPS and a Digital Beam-Steering Receiver
IGARSS 2005, Seoul, Korea, July 2005
05-06-002 Urban/Indoor Navigation using Network Assisted GPS
ION 61st Annual Meeting, Cambridge, MA, June 2005
05-06-001 Ultra Low-Power GPS Recorder (TrackTag®)
ION 61st Annual Meeting, Cambridge, MA, June 2005
05-03-001 Sonobuoy Position Location using the Military P(Y) Code (Presentation)
2005 Joint Undersea Warfare Technology Spring Conference, San Diego, CA, March 2005
ION 2005 National Technical Meeting, San Diego, CA, January 2005
05-01-001 An Array of Digital Antenna Elements for Mitigation of Multipath for Carrier Landings
ION 2005 National Technical Meeting, San Diego, CA, January 2005
04-11-001 Software Defined Radio Test Bed for Integrated Communications and Navigation Applications
2004 Software Defined Radio Technical Conference, Phoenix, AZ, Nov. 2004
04-09-003 GPS/IMU Navigation and Simulation for Higher-Than-GPS Orbits
ION GNSS 2004, Long Beach, CA, September 2004
04-09-002 Precision Maritime Inshore Navigation with a Tightly-Coupled Sensor System
ION GNSS 2004, Long Beach, CA, September 2004
04-09-001 Performance Test Results of an Integrated GPS/MEMS Inertial Navigation Package
ION GNSS 2004, Long Beach, CA, September 2004
04-05-001 Test Results of a GPS/Inertial Navigation System Using a Low Cost MEMS IMU
Proc. of 11th Annual St. Petersburg Int’l Conf. on Integrated Navigation System, St. Petersburg, Russia, May 2004
04-04-001 A Hybrid Integrity Solution for Precision Landing and Guidance
Proceedings of IEEE Plans, Monterey, CA, April 2004
Proceedings of IEEEAC, Big Sky, MT, March 2004
Proceedings of ION GPS/GNSS 2003, Portland, OR, September 2003
03-09-004 Kinematic GPS-Inertial Navigation on a Tactical Fighter
Proceedings of ION GPS/GNSS 2003, Portland, OR, September2003
03-09-003 A Software GPS Receiver Application for Embedding in Software Definable Radios
Proceedings of ION GPS/GNSS 2003, Portland, OR, September 2003)
Proceedings of ION GPS/GNSS 2003, Portland, OR, September 2003
03-09-001 Navigation Using LINK-16 GPS/INS Integration
Proceedings of ION GPS/GNSS 2003, Portland, OR, September 2003
03-06-002 Space Navigation with Digital Beam Steering GPS Receiver Technology
Proceedings of ION 59th Annual Meeting, Albuquerque, NM, June 2003
03-06-001 A GPS Software Application for Embedding in Software Definable Radios
Proceedings of 13th Virginia Tech Symposium on Wireless Personal Communications, Blacksburg, VA, June 2003
Proceedings of 2002 Core Technologies for Space Systems Conference, Colorado Springs, CO, November 2002
Proceedings of 2002 Core Technologies for Space Systems Conference, Colorado Springs, CO, November 2002
02-09-003 Design, Simulation, and Testing of a Miniaturized GPS Dual-Frequency (L1/L2) Antenna Array
Proceedings of ION GPS 2002, Portland, OR, September 2002
02-09-002 Precision Kinematic Alignment Using a Low-Cost GPS/INS System
ION GPS 2002, Portland, OR, September 2002
ION GPS 2002, Portland, OR, September 2002
02-06-002 GPS/Inertial Ultra Tight Coupling Using a Software GPS Receiver
ION 58th Annual Meeting, Classified Session, Albuquerque, NM, June 2002
ION 58th Annual Meeting, Albuquerque, NM, June 2002
02-05-002 Performance and Jamming Test Results of a Digital Beamforming GPS Receiver
Joint Conference on Navigation, Orlando, FL, May 2002.
02-05-001 Inertial Navigation Electro-Optical Aiding During GPS Dropouts
Joint Conference on Navigation, Orlando, FL, May 2002.
Proceedings of ION National Technical Meeting 2002, San Diego, CA, January 2002
02-01-001 Test Results of a Dual Frequency (L1/L2) Small Controlled Reception Pattern Antenna
Proceedings of ION National Technical Meeting 2002, San Diego, CA, January 2002
01-09-006 GI-Eye II GPS/Inertial System For Target Geo-Location and Image Geo-Referencing
White Paper, September 2001
01-09-004 Modular GPS Software Radio Architecture
ION GPS 2001, Salt Lake City, UT, September 2001
ION GPS 2001, Salt Lake City, UT, September 2001
01-09-002 Test Results of a 7-Element Small Controlled Reception Pattern Antenna
ION GPS 2001, Salt Lake City, UT, September 2001
01-09-001 Test Results of a Digital Beamforming GPS Receiver in a Jamming Environment
ION GPS 2001, Salt Lake City, UT, September 2001
01-06-003 Multipath Characterization Using Digital Phased Arrays
ION 57th Annual Meeting, Albuquerque, NM, June 2001
01-06-002 Test Results from Digital P(Y) Code Beamsteering Receiver for Multipath Minimization
ION 57th Annual Meeting, Albuquerque, NM, June 2001
01-06-001 Advanced GPS Hybrid Simulator Architecture
ION 57TH Annual Meeting, Albuquerque, NM, June 2001
01-04-001 TrackTagTM- A low-weight, long-duration GPS recording device
Proceedings of Royal Institute of Navigation RIN01 Conference on Animal Navigation, Oxford, UK, April 2001
01-01-002 Direct P(Y) Code Acquisition Using An Electro-Optic Correlator
ION National Technical Meeting, Long Beach, CA January 2001
01-01-001 High Accuracy of GPS Performance Using a Digital Adaptive Antenna Array
ION National Technical Meeting, Long Beach, CA, January 2001
00-10-001 Small Controlled Reception Pattern Antenna (S-CRPA) Design and Test Results
Proceedings of 26th JSDE Conference, Ventura County, CA, October 2000
00-09-005 Comparison of GPS Performance in a Scintillation Environment at Ascension Island
ION GPS 2000, Salt Lake City, UT, September 2000.
00-09-004 Advanced Mini Array Antenna Design Using High Fidelity Computer Modeling and Simulation
ION GPS 2000, Salt Lake City, UT, September 2000
00-09-003 Multipath Rejection through Spatial Processing
ION GPS 2000, Salt Lake City, UT, September 2000
00-06-002 Detection And Location Of GPS Interference Sources Using Digital Receiver Electronics
IAN 25th Annual Meeting, San Diego, CA, June 2000
00-06-001 Benefits of Space-based Augmentation System for Early Implementation
IAN 25th Annual Meeting, San Diego, CA, June 2000
00-05-004 A GPS Digital Phased Array Antenna and Receiver
Proceedings of IEEE Phased Array Symposium, Dana Point, CA, May 2000.
00-05-003 A Perspective on Land Navigation – The Evolution from Man-Packs to Modules
GNSS 2000, Edinburgh, UK, May 2000
00-05-002 Miniaturized GPS Antenna Array and Test Results
GNSS 2000, Edinburgh, UK, May 2000
00-05-001 High Gain Advanced GPS Receiver for Precision GPS Applications
GNSS 2000, Edinburgh, UK, May 2000
00-03-001 Space Applications of the Global Positioning and Timing Service (GPtS)
The Richard H. Battin Astrodynamics Conference, College Station, TX, March 21, 2000
ION National Technical Meeting, Anaheim, CA, January 2000
00-01-005 A Jammer And Interference Location System Design And Test Results
ION National Technical Meeting, Anaheim, CA, January 2000
ION National Technical Meeting, Anaheim, CA, January 2000
00-01-003 Test Results Of A Digital Beamforming GPS Receiver For Mobile Applications
ION National Technical Meeting, Anaheim, CA, January 2000
00-01-002 A GPS Receiver Designed For Carrier-Phase Time Transfer
ION National Technical Meeting, Anaheim, CA, January 2000
00-01-001 Benefits of Software GPS Receivers for Enhanced Signal Processing
GPS Solutions, 4(1) Summer, 2000, pages 56-66.
99-09-005 Jammer And Interference Location System – Design And Initial Test Results
ION GPS ’99,, Nashville, TN, September 1999
99-09-004 Miniaturized GPS Antenna Array Technology and Predicted Anti-Jam Performance
ION GPS ’99, Nashville, TN, September 1999
99-09-003 High Accuracy Kinematic GPS Performance Using a Digital Beam-Steering Array
ION GPS ’99, Nashville, TN, September 1999
99-09-002 Video-aided GPS/INS Positioning and Attitude Determination
ION GPS ’99, Nashville, TN, September 1999
99-09-001 Applications of Digital Storage Receivers for Enhanced Signal Processing
ION GPS ’99, Nashville, TN, September 1999
Journal of Navigation, January 2000, Volume 53, Number 1, Page 132-145
Symposium on Moving Map Displays, Alexandria, VA, August 1999
99-06-003 Precision Targeting Using GPS/Inertial-Aided Sensors
ION 55th Annual Meeting, Cambridge, MA, June 1999
99-06-002 Test Results of a High Gain Advanced GPS Receiver
ION 55th Annual Meeting, Cambridge, MA, June 1999
99-06-001 Miniaturized GPS Antenna Array Technology
ION 55th Annual Meeting, Cambridge, MA, June 1999
99-01-001 GPSS Signals in a GeoSynchronous Transfer Orbit: “Falcon Gold” Data Processing
The Institute of Navigation 1999 National Technical Meeting, San Diego, CA, January 1999
98-11-001 Precise Position and Attitude Georegistration
74th JSDE Symposium, Anaheim, CA, November 1998
98-10-002 Falcon Gold Experiment Data Processing at The Aerospace Corporation
October 1998
98-10-001 Direct Sensor to Weapon Network (DSTWN) Architecture
AIAA, Huntsville, AL, October 1998
98-09-001 High Gain Advanced GPS Receiver
White Paper, September 1998
98-06-003 High Accuracy Targeting Using a GPS-Aided Inertial Measurement Unit
ION 54th Annual Meeting, Denver, CO, June 1998
ION 54th Annual Meeting, Denver, CO, June 1998
98-06-001 A Modular Re-programmable Digital Receiver Architecture
ION 54th Annual Meeting, Denver, CO, June 1998
97-09-004 The U.S. Air Force Academy GPS Flight Experiment Using the NAVSYS TIDGET
ION GPS ‘96, Kansas City, MO, September 1996
97-09-003 Precision Attitude Determination Using a Low Grade GPS-Aided Inertial Measurement Unit
ION GPS ‘96, Kansas City, MO, September 1996
97-09-002 GPS Phone: An Integrated GPS/Cellular Handset
ION GPS ‘96, Kansas City, MO, September 1996
97-09-001 Commercial Aviation Navigation Systems Analysis Toolset
ION GPS ‘96, Kansas City, MO, September 1996
96-09-007 Operational Field Trials of GPS-equipped Sonobuoys
ION GPS ‘96, Kansas City, MO, September 1996
ION GPS ‘96, Kansas City, MO, September 1996
96-09-005 High Dynamic, Dual Frequency Tracking with a Low Bandwidth Digital Translator
ION GPS ‘96, Kansas City, MO, September 1996
96-09-004 Multi-Application GPS/Inertial Navigation Software
ION GPS ‘96, Kansas City, MO, September 1996
96-09-003 Observing Ionospheric Profiles Using a Dual Frequency Translator
ION GPS ‘96, Kansas City, MO, September 1996
96-09-002 State Wide Deployment of Colorado’s MAYDAY System
ION GPS ‘96, Kansas City, MO, September 1996
96-09-001 A Modular GPS Timing Sensor
ION GPS ‘96, Kansas City, MO, September 1996
96-06-004 Limiting Factors in Tropospheric Propagation Delay Error Modelling for GPS Airborne Navigation
ION 52nd Annual Meeting, Cambridge, MA, June 1996
96-06-003 TIDGET-T: A Low Cost GPS Time Sensor That Maintains Precise Time During Extended Periods of GPS Signal Loss
ION 52nd Annual Meeting, Cambridge, MA, June 1996
96-06-002 Test Results of Real Time Mapping of Roadways Using the GIM System
ION 52nd Annual Meeting, Cambridge, MA, June 1996
96-06-001 Wind Profile Estimation Using a TIDGET Payload on Weather Balloons
ION 52nd Annual Meeting, Cambridge, MA, June 1996
96-04-001 Flight Test of an Integrated Digital GPS Translator
IEEE 1996 Position Location and Navigation Symposium, Atlanta, GA, Apri 1996
95-10-001 Mayday in the Rockies: Colorado's GPS-Based Emergency Vehicle Location System
GPS World, Vol 6, No 10, October 1995
95-09-006 GPS/Inertial Mapping (GIM) System for Real Time Mapping of Roadways Using WADGPS
ION GPS ‘95, Palm Springs, CA, September 1995
95-09-005 A Comparison of Three Multipath Mitigation Approaches for GPS Receivers
ION GPS ‘95, Palm Springs, CA, September 1995
95-09-004 Field Test Results of an Enhanced GPS Coverage Through Map Aiding in Urban and Canyon Environments
ION GPS ‘95, Palm Springs, CA, September 1995
95-09-003 High Accuracy Time Calibration Using the Inmarat Geostationary Overlay Signal from the AOR-West Satellite
ION GPS ‘95, Palm Springs, CA, September 1995
95-09-002 Boosting Shipboard RAIM Availability
ION GPS ‘95, Palm Springs, CA, September 1995
95-09-001 Anti-Jamming Performance of TIDGET in Guided Munitions Applications
ION GPS ‘95, Palm Springs, CA, September 1995 (email request)
95-08-001 A TIDGET/Inertial Missile Sensor Fusion System
AIAA Conference, Baltimore, MD, August 1995
95-06-005 A Study into the Use of GPS in a Combat Search and Rescue Environment
Air Warfare Centre - Operational Doctrine and Training Great Britain, Jun 1995
95-06-004 Test Results of the NAVSYS Corporation GPS/Inertial Mapping (GIM) System
ION 51st Annual Meeting, Colorado Springs, CO, June 1995
95-06-003 INMARSAT Precise Orbit Determination
Satellite Navigation Conference 1995, Brisbane, QLD, Australia, June 1995
95-06-002 Use of Commercial GIS and GPS for Emergency Location and Dispatch
ION 51st Annual Meeting, Colorado Springs, CO, June 1995
95-06-001 Enhanced GPS Coverage Through Map Aiding in Urban and Canyon Environments
ION 51st Annual Meeting, Colorado Springs, CO, June 1995
95-05-003 A Low-Cost Emergency Location Sensor for Vehicles-Description of an Operational Test Programme and Preliminary Results
Space Congress, Bremen, Germany, May 1995
95-05-002 A Low Cost GPS/Inertial Mapping (GIM) System
Mobile Mapping Symposium, Columbus, OH. May 1995
95-05-001 Intelligent Transportation System Mayday Becomes Reality
NAECON Nat’l Aerospace Elec Conf, Dayton, OH, May 1995 (email request)
95-03-001 A Mayday System for Rural Highway Travel
ITS America Annual Conference, Washington, DC, March 1995 (email request)
94-10-002 Sea Trials of a GPS Receiver/Antenna System
ISIC Int’l Sonobuoy Interoperability Conference Livorno, Italy Oct 1994
94-10-001 Digital Downconversion Test Results with a Broadband L-Band GPS Receiver
Digital Avionic Systems Conference, Phoenix, AZ, October 1995
94-09-003 GIS Data Collection Using the GPS Van Supported by a GPS/Inertial Mapping System (GIM)
ION Sat Div Int’l Tech Mtg, Salt Lake City, UT, September 1994
94-09-002 TIDGET Tracking at the Edge of Space
ION Sat Div Int’l Tech Mtg, Salt Lake City, UT, September 1994
94-09-001 TIDGET Applications for Missile Tracking and Guidance
ION Sat Div Int’l Tech Mtg, Salt Lake City, UT, September 1994
94-08-001 Boundary Layer Tropospheric Effects on Airborne On-the-Fly Ambiguity Resolution
KIS Sympos on Kinematic Systems, Banff, Canada, August 1994
94-06-006 Orbit and Ranging Analysis of the INMARSAT AOR-West Geostationary Satellite
ION Annual Meeting, Colorado Springs, CO, June 1994
94-06-005 The NAVSYS GPS/Inertial Mapping (GIM) System
ION Annual Meeting, Colorado Springs, CO, June 1994
94-06-004 A Modular Receiver Design for Enhanced GPS Applications
ION Annual Meeting, Colorado Springs, CO, June 1994
94-06-003 Flight Test Results Using Carrier Phase kinematic Solutions for Aircraft Precision Approach and Landing
ION Annual Meeting, Colorado Springs, CO, June 1994
94-06-002 An Operational Test of a Vehicle Emergency Location Service in Colorado
ION Annual Meeting, Colorado Springs, CO, June 1994
94-06-001 Navigating in the Urban Canyon-Experimental Results of a Rapid Acquisition GPS Receiver Architecture
ION Annual Meeting, Colorado Springs, CO, June 1994
94-04-004 Experiences with RAIM, Altitude Aided RAIM, and FDI: Risks and Benefits
Royal Inst of Navig DSNS-94-Conf, London, UK, April 1994
94-04-003 Digital L.Band Receiver Architecture with Direct RF Sampling
IEEE PLANS Symposium, Las Vegas, NV, April 1994
94-04-002 Mathematical Aspects of GPS RAIM
IEEE PLANS Symposium, Las Vegas, NV, April 1994
94-04-001 TIDGET Mayday System for Motorists
IEEE PLANS Symposium, Las Vegas, NV, April 1994
94-01-003 A Low Cost GPS Radiosonde System
AIAA Aerospace Sci Meeting, Reno, NV, January 1994
94-01-002 GPS Applications in Sonobuoys
IEE Colloq on Heading Sensors for Sonar & Marine Apps, London, UK, January 1994
94-01-001 Time Transfer Test Results Using the INMARSAT Geostationary Overlay
ION National Tech Meeting, San Diego, CA, January 1994
93-12-001 A GPS Sensor for Once-in-a-Lifetime Applications
IEE Conf on Mobile & Personal Comm, Brighton, UK, Dececember 1993
93-10-002 Test Results of a GPS Translator Post-Test Processing System
Guidance Test Symposium, Holloman AFB, NM, October 1993
93-10-001 Precise Time Distribution through Inmarsat for Use in Power Systems
VA Tech Conference on Computers in Elec Power Engr. Washington, DC, October 1993
93-09-012 Precise High-Rate GPS Kinematic Positioning of a NOAA Discus Buoy
ION Sat Div Int’l Tech Mtg Salt Lake City, UT, September 1993
93-09-011 Positioning Aids-to-Navigation with GPS
ION Sat Div Int’l Tech Mtg, Salt Lake City, UT, September 1993
93-09-010 Direct Digital Sampling & Processing of L-Band GPS Signals: A Fully Digital Receiver Architecture
ION Sat Div Int’l Tech Mtg, Salt Lake City, UT, September 1993
93-09-009 Wind Profiling with a GPS Radiosonde--Preliminary Test Results
ION Sat Div Int’l Tech Mtg, Salt Lake City, UT, September 1993
93-09-008 Tracktag
ION Sat Div Int’l Tech Mtg Salt Lake City, UT, September 1993
93-09-007 Receiver Autonomous Integrity Monitoring Using the NMEA 0183 Message: GPGRS
ION Sat Div Int’l Tech Mtg, Salt Lake City, UT, September 1993
93-09-006 GPS to the Rescue--Mayday for Motorists
ION Sat Div Int’l Tech Mtg, Salt Lake City, UT, September 1993
93-09-005 Disposable GPS--Test Results of a Low-Cost Sensor for Sonobuoy Applications
ION Sat Div Int’l Tech Mtg, Salt Lake City, UT, September 1993
93-09-004 Precise Time Dissemination Through INMARSAT - Preliminary Results
ION Sat Div Int’l Tech Mtg, Salt Lake City, UT, September 1993
93-09-003 Flight Test Results of a Pseudolite-Based Precision Approach and Landing System
ION Sat Div Int’l Tech Mtg, Salt Lake City, UT, September 1993
93-09-002 Aircraft Landing Trials at NASA Wallops Island
ION Sat Div Int’l Tech Mtg, Salt Lake City, UT, September 1993
93-09-001 TIDGET-Plus: Urban Navigation with Stand-Alone GPS
ION Sat Div Int’l Tech Mtg, Salt Lake City, UT, September 1993
93-06-002 Precise Time Dissemination Using the Inmarsat Geostationary Overlay
IEEE Freq Ctrl Symposium, Salt Lake City, UT, June 1993
93-06-001 Test Results of a New DGPS RAIM Software Package
ION Annual Meeting, Cambridge, MA, June 1993
93-05-001 Global Positioning System Integrity Monitoring with NavSafe Software
World Dredging, Mining and Construction, Vol 29, No 5, June 1993
92-09-001 The TIDGET--A Low Cost GPS Sensor for Tracking Applications
ION Sat Div Int’l Tech Mtg, Albuquerque, NM, September 1992
92-09-002 Digital Translator Design Trades
ON Sat Div Int’l Tech Mtg Albuquerque, NM, September 1992
92-09-003 A GPS Environmental Sounding System
ION Sat Div Int’l Tech Mtg Albuquerque, NM, September 1992
92-09-004 A GPS Precision Approach and Landing System
ION Sat Div Int’l tech Mtg Albuquerque, NM, September 1992
92-06-001 Low Cost Vehicle Location & Tracking Using GPS
ION Annual Meeting Washington, DC June 1992
92-05-001 Test Results of the Advanced Translator Processing System
May 1992 AGARD Conf & Smypos on Radio Location Techniques London
92-03-001 Simulation of a Civil Integrity Network
IEEE PLANS Symposium CA March 1992
92-03-002 Long Duration Strapdown Stellar-Inertial Navigation Using Satellite Tracking
IEEE PLANS Symposium CA March 1992
92-03-003 A Low-Cost Vehicle Location and Tracking System
IEEE PLANS Symposium, CA, Mar 1992
91-11-001 Integrity Network Simulator
Royal Inst of Navig NAV-91 Sat Nivig Conf, London Nov 1991
91-09-001 Integrity Network Simulator
ION Sat Div Intl Tech Mtg Albuquerque, NM, Sep 1991
91-09-002 Test Results of the Advanced Translator Processing System
ION Sat Div Intl Tech Mtg Albuquerque, NM, Sep 1991
91-09-003 Differential GPS Autonomous Failure Detection
ION Sat Div Int’l Tech Mtg Albuquerque, NM, Sep 1991
91-09-004 Selective Availability is Back
GIS World Vol 4, No 6, Sep 1991
91-06-001 GPS and the Federal Radionavigation Plan
GIS World Vol 4, No 4, Jun 1991
91-02-001 How to Choose a GPS Receiver
GIS World Vol 4, No 1, Feb 1991
90-09-001 Digital Translators for GPS TSPI Applications
ION Sat Div Int’l Tech Mtg Colorado Springs, CO, Sep 1990
90-09-002 Comparison of Fixed and Variable Threshold RAIM Algorithms
ION Sat Div Int’l Tech Mtg Colorado Springs, CO, Sep 1990
90-09-003 Fault tolerant GPS/Inertial System Design
ION Sat Div Int’l Tech Mtg Colorado Springs, CO, Sep 1990
90-06-001 Integrated GPS/GLONASS for Reliable Receiver Autonomous Integrity Monitoring (RAIM)
ION Sat Div Int’l Tech Mtg Atlantic City, NJ, Jun 1990
90-06-002 The Effect of Geometry on Integrity Monitoring Performance
ION Sat Div Int’l Tech Mtg Atlantic City, NJ, Jun 1990
89-12-001 A Multi-Sensor Approach to Assuring GPS Integrity
Radio Technical Commission for Aeronautics, Washington, DC, Dec 1989
89-09-001 An Autodop Algorithm for the Block IIR Autonav Capability
ION Sat Div Int’l Tech Mtg Colorado Springs, CO, Sep 1989
89-09-002 Advances in GPS Translator Technology
ION Sat Div Int’l Tech Mtg Colorado Springs, CO Sep 1989
89-09-003 Extended Differential GPS
Navigation Journal of ION Vol 36, No 3 (Fall) Sep 1989
88-01-001 Civil Aviation Integrity Requirements for the Global Positioning System
Navigation Journal of ION Vol 35, No 1 (Spring) Jan 1988
88-01-002 Integrity Monitoring of the Global Positioning System Using a Barometric Altimeter
ION Annual Meeting CA Jan 1988
87-09-001 Receiver Autonomous Integrity Monitoring Using a 24-Satellite GPS Constellation
ION Sat Div Int’l Tech Mtg Colorado Springs, CO, Sep 1987
87-09-002 Navigation Satellites
Encyclopedia of Physical Science & Technology, Vol 8 Academic Press, Inc., 1987
86-05-001 Design of Differential GPS Receivers for Marine Navigation
RTCM Annual Assembly Meeting MA, May 1986
86-05-002 MINI-MAC--A New Generation Dual-Band Surveyor
Fourth International Geodetic Symposium on Satellite Positioning Austin, TX, May 1986
86-01-001 Low Cost testing of High Accuracy INS Using GPS
ION Nat’l Tech Meeting CA, Jan 1986
85-06-001 Commercial Aviation GPS Navigation Flight Test Results
ION Annual Meeting MD Jun 1985
85-04-001 Static Point Positioning with an L1, C/A Code GPS Receiver
Int’l Sympos on Precise Positioning with GPS MD Apr 1985
84-10-001 Static Point Positioning Using the Global Positioning System
IAF Congress Switzerland Oct 1984
84-09-001 Laser Gyroscope random Walk Determination Using a Fast Filtering Technique
AGARD Conf & Gyro tech Sympos Germany Sep 1984
84-05-001 GPS/AHRS: A Synergistic Mix
IEEE NAECON OH May 1984
84-05-002 Kalman Filter Implementation in the Litton LR-80-AHRS
IEEE NAECON OH May 1984
84-03-001 Quantization reduction for Evaluating Laser Gyro Performance Using a Moving Average Filter
IEEE Conf on Acoustics, Speech, & Signal Procedures CA Mar 1984
83-05-001 Measurement Updating Using the U-D Factorization Method when the Measurement Noise is Correlated
IEEE NAECON Dayton, OH May 1983
82-12-001 Design of RLG Inertial Systems for High Vibration
IEEE PLANS Symposium Atlantic City, NJ Dec 1982
82-02-001 Interferometric Attitude Determination Using the Global Positioning System
Int’l Symposium on Sat Doppler Positioning NM Feb 1982
