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

2019

19-03-001    InterNav GPS Inertial Integration Software Architecture White Paper
19-03-002    Time-tagging Inertial and Aiding Sensor Data for Precision Assured Positioning Navigation and Timing (A-PNT)
19-03-003    InterNav Modular Integrated Inertial Navigation for Assured PNT during GPS Denial

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

10-05-001    Improving the Accuracy of Precision Guided Munitions with a GPS Ephemeris & Ionospheric Correction Sharing Service (GEISS)

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

08-09-006    Near Real-Time Geo-Referenced UAV Imagery Collection and Web-Based Processing on a Server for Targeting and Mapping

Proceedings of ION GNSS 2008, Savannah, GA, Sep. 2008

08-09-005    Test Results from a Precise Positioning and Attitude Determination System for Microsatellites Using a Software Define Radio

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

08-02-001    A Snapshot GPS Approach for Precise Positioning and Attitude Determination of MicroSatellites

Proceedings of 31st Annual AAS Guidance and Control Conference, Breckenridge, CO, February 2008

08-01-001    Precise Positioning and Attitude Determination of Microsatellites using a Software-Defined Radio

Proceedings of the ION National Technical Meeting 2008, San Diego, CA, January 2008

2007

07-11-003    Precise Positioning and Attitude Determination of Small Satellites Using a Software-Defined Radio

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

07-10-001    Web-Based Geo-Referenced Image Manager (Webgrim): Automated Correction, Processing and Management of Aerial Data

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

05-01-002    Bistatic Sensing and Multipath Mitigation with a 109-Element GPS Antenna Array and Digital Beam Steering Receiver

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

04-03-001    Architecture and Performance Testing of a Software GPS Receiver for Space-based Applications

Proceedings of IEEEAC, Big Sky, MT, March 2004

03-09-005    Bi-Static Sensing with Reflected GPS Signals Observed with a Digital Beam-Steered Antenna Array

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)

03-09-002    Phase Center Calibration and Multipath Test Results of a Digital Beam-Steered Antenna Array

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

02-11-002    Reprogrammable, Digital Beam-Steering GPS Receiver Technology for Enhanced Space Vehicle Operations

Proceedings of 2002 Core Technologies for Space Systems Conference, Colorado Springs, CO, November 2002

02-11-001    High Accuracy Differential and Kinematic GPS Positioning Using a Digital Beam-Steering Antenna

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

02-09-001    Rapid Ambiguity Resolution using Multipath Spatial Processing for High Accuracy Carrier Phase

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

02-06-001    Video Updates during GPS Dropouts using Navigation and Electro/Optic Sensor Integration Technology

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.

02-01-002    High Accuracy Autonomous Image Georeferencing Using a GPS/Inertial-Aided Digital Imaging System

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

01-09-003    Test Results from a Digital P-Y Code Beamsteering GPS Receiver Designed for Carrier Phase Time Transfer

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

00-01-006    Modeling and Simulation of GPS Using Software Signal Generation and Digital Signal Reconstruction

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

00-01-004    Kinematic Test Results Of A Miniaturized GPS Antenna Array With Digital Beamsteering Electronics

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

99-08-001    Navigation and Electro-Optic Sensor Integration Technology for Fusion of Imagery and Digital Mapping Products

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

98-06-002    GPS Ionospheric Scintillation Measurements Using a Beam Steering Antenna Array for Improved Signal/Noise

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

96-09-006    Test Results of GPS Dropwindsonde and Application of GPS in Precision Airdrop Capability Using the TIDGET GPS Sensor

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   

89-09-001    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