2009

Bingham, J. and M. Veth, "Vision-Aided Cooperative Navigation for Multiple Unmanned Vehicles," Proceedings of ION International Technical Meeting 2009, Anaheim, CA, January 2009.

Brenneman, M. T. and Yu T. Morton, “False alarm rate estimation for information-theoretic-based source enumeration methods,” EURASIP J. Adv. Signal Processing, Vol. 2009, Article ID 697451, 10 pages, 2009. doi:10.1155/2009/697451, 2009.

Brenneman, M., Y. Morton, “A novel maximum likelihood estimator for GPS signal angle of arrival,” 2009 Asilomar Conf. Signals, Systems, & Comp., Pacific Grove, CA., Nov. 2009.

Church C. and I. Gupta, “Calibration of GNSS adaptive antennas,” Proceedings of ION 2009 GNSS Conference, Savannah, GA, September 2009.

Church C. and I. Gupta, “Estimation of adaptive antenna induced code and carrier phase bias in GNSS receivers,” NAVIGATION, Journal of the Institute of Navigation, Vol. 56, No. 3, Fall 2009.

Ciampa, M. and J. Raquet, "Failure Detection for a Pseudolite-Based Reference System," Proceedings of the 22nd International Technical Meeting of the Satellite Division of the Institute of Navigation ION GNSS 2009, Savannah, GA, September 2009.

Gray, J. and M. Veth, "Deeply-Integrated Feature Tracking for Embedded Navigation," Proceedings of the ION International Technical Meeting, Anaheim, CA, January 2009.

Grejner-Brzezinska, D. A. C. K. Toth, L. Li, J. Park, X. Wang, H. Sun,  I.J. Gupta, K. Huggins and Y. F. Zheng (2009):  Positioning in GPS-challenged Environments: Dynamic Sensor Network with Distributed GPS Aperture and Inter-nodal Ranging Signals, Proceedings, ION GNSS, CD ROM.

Grejner-Brzezinska, D.A. and C. Rizos (2009): Satellite-based geodesy, McGraw Hill 2009 Yearbook of Science & Technology, pp. 331–334.

Grejner-Brzezinska, D.A. (2009): Chapter 10 “GPS Instrumentation Issues” of the Manual of Geospatial Science & Technology, Francis and Taylor (Ed.2, in press).

Griffith K. and I. Gupta, “Inclusion of rotor blade modulation in computer simulations or wavefront Simulators,” Proceedings of ION 2009 GNSS Conference, Savannah, GA, September 2009.

Griffith K. and I. Gupta, “Effect of mutual coupling on the performance of GPS AJ antennas,” NAVIGATION, Journal of the Institute of Navigation, Vol. 56, No. 3, Fall 2009.

Gunawardena, S., Z. Zhu, M. Uijt de Haag and F. van Graas, Remote-Controlled Continuously Operating GPS Anomalous Event Monitor, Navigation: Journal of The Institute of Navigation, Vol. 56, No. 2, Summer 2009.

Hooper, D. and G. Peterson, "HAMR: A Hybrid Multi-Robot Control Architecture," Proceedings of the Twenty-Second International FLAIRS Conference, Sanibel Island, FL, May 2009.

Huang, J., F. van Graas, A Carrier Phase Batch Processor for Differential Global Positioning System: Simulation and Real-Data Results, Measurement Science and Technology, September 2009.

Kauffman, K., D. Garmatyuk, Y. Morton, “Efficient sparse target tracking algorithm for navigation with UWB-OFDM radar sensors,” 2009 NAECOM, Dayton, OH, July, 2009.

Markiel, J.N., Grejner-Brzezinska, D., Toth, C.K. (2009): Flash LADAR Navigation: Locating Features with Moving Acquisition, Joint Navigation Conference 2009, June 1-4, 2009, Orlando, FL, CD ROM.

Martin, R., C. Yan, and H. Fan, “Bounds on Decentralized TDOA-Based Localization of OFDM Sources,” Proceedings of Int. Conf. on Acoustics, Speech, and Signal Proc. (ICASSP), Taipei, Taiwan, April 2009, 4 pages.

Martin, R., J. Velotta, and J. Raquet, “Bandwidth Efficient Cooperative TDOA Computation for Multicarrier Signals of Opportunity,” IEEE Trans. on Signal Processing, vol. 57, no. 6, June 2009, pp. 2311-2322.

Matteo, N.,  Y. Morton, P. Chandrasekaran, F. van Graas, “Geographical Dependency of Higher Order Ionosphere Errors,” 2009 ION GNSS Conference, Savanna, GA, Sept. 2009.

Moafipoor, S., Grejner-Brzezinska, D., Toth, C.K. (2009): Quality Control for Dead Reckoning Navigation in Personal Navigator, Joint Navigation Conference 2009, June 1-4, 2009, Orlando, FL, CD ROM.

Morrison, J., J. Raquet, and M. Veth, "Performance Evaluation of Vision Aided Inertial Navigation System Augmented with a Coded Aperture," Proceedings of the 2009 International Technical Meeting of the Institute of Navigation, Anaheim, CA, January 2009.

Morton, Y., Q. Zhou, and F. van Graas, “Assessment of second order ionosphere error in GPS range observables using Arecibo incoherent scatter radar measurements,” Radio Sci., Vol.44, RS1002, doi:10.1029/2008RS003888, 2009.

O’Brien, A.,  K. Hayhurst and I. Gupta, “Effects of rotor blade modulation on GNSS receiver measurements,” Proceedings of ION 2009 GNSS Conference, Savannah, GA, September 2009.

O’Brien A. and I. Gupta, “Comparison of output SINR and receiver C/N0 for GNSS adaptive antennas,” IEEE Transactions on Aerospace and Electronic Systems, Vol. 45, No. 4, October 2009.

Oh, J., Lee, Y., Toth, C., and D. Brzezinska, (2009): Exploitation of LiDAR Range Measurements to Help Pushbroom Sensor Modeling for Accurate EOP Estimation, ASPRS Annual Conference, Baltimore, MD, March 9–13, 2009, CD-ROM.

Raquet, J., "Night-Vision Goggles Heads-Up Display," Federal Laboratory Consortium, Technology for Today, pp. 34-35, August 2009.

Rizos, C and Grejner-Brzezinska, D.A. Chapter 9 “GPS Positioning Models For Single Point and Baseline Solutions” of the Manual of Geospatial Science & Technology, Francis and Taylor, 2009.

Rizos, C. and Grejner-Brzezinska, D.A.: Chapter 14 “Geodesy and Surveying”of the GNSS Applications: Methods and Development, Artech House, 2009.

Rogers, M. and R. Huffman, "An Investigation into the Feasibility of using a Modern Gravity Gradiometer Instrument for Passive Aircraft Navigation and Terrain Avoidance," Proceedings of the ION International Technical Meeting, Anaheim, CA, January 2009.

Seymour, R. and G. Peterson, "A Trust-based Multi-agent System," Proceedings of the 2009 International Conference on Computational Science and Engineering, Vancouver, Canada, August 2009, pp. 109-116.

Seymour, R. and G. Peterson, "Responding to Sneaky Agents in Multi-agent Domains," Proceedings of the Twenty-Second International FLAIRS Conference, Sanibel Island, FL, May 2009.

Smith, A. and F. Harmon, "UAS Collision Avoidance Algorithm Minimizing Impact on Route Surveillance," Proceedings of the American Institute of Aeronautics and Astronautics Guidance Navigation and Control Conference, August, 2009.

Soloviev, A., Gans, N. and M. Uijt de Haag, “Integration of Video Camera with 2D Laser Scanner for 3D Navigation,  Proceedings of the International Technical Meeting of the ION, Anaheim, CA, January 2009.

Soloviev,A., S. Gunawardena, and F. van Graas, Decoding Navigation Data Messages from Weak GPS Signals, IEEE Transactions on Aerospace and Electronic Systems, Vol. 45, Issue 2, April 2009.

Soloviev, A., Van Graas, F., Gunawardena, S. and M. Miller, “Synthetic Aperture GPS Signal Processing: Concept and Feasibility Demonstration, Proceedings of the International Technical Meeting of the ION, Anaheim, CA, January 2009.

Soloviev, A., Eaton, D. and M. Uijt de Haag, “Integration of Ladar Vision and Inertial Data for GNSS Denied Navigation, Proceedings of ION GNSS, September 2009.

Soloviev, A. and S. Gunawardena, “Synthetic Aperture GPS Signal Processing for Multi-Platform Antenna Configuration, Proceedings of ION GNSS, September 2009.

Stepaniak, M, F. van Graas and M. Uijt de Haag, Design of an Electric Propulsion System for a Quadrotor Unmanned Aerial Vehicle, AIAA Journal of Aircraft, Vol. 46, No. 3, 2009.

Storms, W. and J. Raquet, "Magnetic Field Aided Indoor Navigation," ATTI, Dell 'Instituto Italiano Di Navigazione, Papers Selected from the European Navigation Conference - GNSS, Naples, Italy, 4-6 January 2009, pgs 57-65.

Svendsen A.  and I. Gupta, “Effects of rotor modulation on the nulling performance of GNSS adaptive antennas,” Proceedings of Joint Navigation Conference (Limited Distribution), Orlando, FL, June 2009.

Toth, C., R&D of Mobile LiDAR Mapping and Future Trends, ASPRS Annual Conference, Baltimore, MD, March 9 – March 13, 2009, CD-ROM (invited).

Toth, C., Grejner-Brzezinska, D.A., Wang, X., and Sun, H., (2009): Terrestrial Laser Scanning to Support Land Navigation, ASPRS Annual Conference, Baltimore, MD, March 9–13, 2009, CD-ROM.

van Graas, F., A. Soloviev, M. Uijt de Haag, and S. Gunawardena, Closed-Loop Sequential Signal Processing and Open-Loop Batch Processing Approaches for GNSS Receiver Design, IEEE Journal of Selected Topics in Signal Processing, Special Issue on: Advanced Signal Processing for GNSS and Robust Navigation, Vol. 3, Issue 4, August 2009.

Vydhyanathan, A., Luinge, H., Tanigawa, M., Dijkstra, F., Braasch, M. S. and M. Uijt de Haag, “Augmenting Low-cost GPS/INS with Ultra-wideband Transceivers for Multi-platform Relative Navigation, Proceeedings of ION GNSS, September 2009.

Yan, C., H. Fan, and R. Martin, “Robust NLOS Multipath Mitigation for TOA Estimation,” Proceedings of Int. Conf. on Acoustics, Speech, and Signal Proc. (ICASSP), Taipei, Taiwan, April 2009, 4 pages. 

Yang, C., Y. Morton, “Adaptive replica code synthesis for interference suppression in GNSS receivers,” 2009 ION Int. Technical Meeting, Los Angeles, CA, Jan. 2009.

Zhang, L., Y. Morton, “Tracking GPS Signals under Ionosphere Scintillation Conditions,” 2009 ION GNSS Conference, Savanna, GA, Sept. 2009.

Zhu, Z. and F. van Graas, Earth-Surface Multipath Detection and Error Modeling for Aircraft GPS Receivers, Navigation: Journal of The Institute of Navigation, Vol. 56, No. 1, Spring 2009.

2008

Amt, J., J. Raquet, and M. Pachter, "Accurate Positioning Using Planar Pseudolite Array," Proceedings of IEEE/ION PLANS 2008, Monterey, CA, May 6-8, 2008.

Baker, J., R. Holsapple, A. Girard, M. Pachter, and P. Chandler, "Operator-Aided Decision Processes for Unmanned Aerial Vehicles in a Stochastic Environment," Springer, LNCS, December 2008.

Bode, J., D. Jacques, and M. Pachter, "Optimal Control of the Weapon Operating Characteristic with Control Inequality Constraints," Springer, LNCS, December 2008.

Brenneman, M., Y. Morton, Q. Zhou, “Applying ANOVA test to GPS multipath detection using a multi-channel software receiver,” Proc. 2008 IEEE PLANs/ION, Monterey, CA, May, 2008.

Crosby, J., R. Martin, J. Raquet, and M. Veth, "Fusion of Inertial Sensors and Signals of Opportunity for Unassisted Navigation," Proceedings of the Navigation Conference & Exhibition, London, UK, October 2008.

DeVilbiss, S. and F. van Graas, ”AngelFire,” Joint Navigation Conference, Las Vegas, NV, 17-19 March 2008.

Duffy, J. and G. Peterson, "An Abstract Behavior Representation for Robust, Dynamic Sequencing in a Hybrid Architecture," AAAI Spring Symposium - Architectures for Intelligent Theory-Based Agents, pp. 19-24, Stanford University, CA, March 2008.

Garmatyuk, D., Y. Morton, X. Mao, “On coexistence of in-band UWB-OFDM and GPS signals: tracking performance analysis,” Proc. 2008 IEEE PLANs/ION, Monterey, CA, May, 2008.

Grejner-Brzezinska, D.A., C. Toth and Sh. Moafipoor, “A Step Ahead: Human Motion, Machine Learning Combine for Personal Navigation,” GPS World, Vol. 19, No. 11, 2008, pp. 34-41.

Grejner-Brzezinska, D. A. C. K. Toth, Y-J. Lee and J. Oh, “Aerial navigation in GPS-denied environments using a closed-feedback error loop between the navigation and imaging sensors,” Proceedings, Savannah, Georgia, Sept. 16-19, ION GNSS, CD ROM, 2008.

Grejner-Brzezinska, D.A., Wielgosz, P., Kashani, I., Smith, D.A., Spencer, P.S.J., Robertson, D.S., Mader, G.L., “On Efficiency and Reliability of Ambiguity Resolution in Network-Based Real-Time Kinematic GPS,” ASCE Journal of Surveying Engineering. Vol. 133, No. 2, pp. 56–65, 2008.

Grejner-Brzezinska, D. A., C. Toth, H. Sun, X. Wang, “Novel geolocation technology for geophysical sensors for detection and discrimination of unexploded ordnance,” Proceedings, IEEE/ION PLANS Meeting, May 5-8, 2008, Monterey, California, CD ROM, 2008.

Griffith K. and I. Gupta, “Effect of mutual coupling on GPS AJ antennas,” Proceedings of 2008 Position Location and Navigation Symposium (PLANS), Monterey, CA, May 2008.

Gunawardena, G., Zhen Z. and F. van Graas, “Triple Frequency RF Front-End for GNSS Instrumentation Receiver Applications,” Proceedings of ION GNSS 2008, Savannah, GA, September 2008.

Gupta I. and K. Griffith, “Simulations of antennas mounted on rotorcrafts,” Proceedings of ION 2008 GNSS Conference, Savannah, GA, September 2008.

Huang, J. van Graas, F. and C. Cohenour, “Characterization of Tropospheric Spatial Decorrelation Errors Over a 5-km Baseline,” NAVIGATION: Journal of The Institute of Navigation, Vol. 55, No. 1, 2008.

Jordt, G., R. Baldwin, J. Raquet, and B. Mullins, "Energy Cost and Error Performance of Range-Aware, Anchor Free Localization Algorithms," Ad Hoc Networks, Vol. 6, No. 4, pp. 539-559, June 2008.

Jorris, T. and R. Cobb, "Multiple Method 2-D Trajectory Optimization Satisfying Waypoints and No-Fly Zone Constraints," AIAA Journal of Guidance, Control and Dynamics, Vol.31, No. 3, pp. 543-553, May-June 2008.

Kasemodel, J., C. Chen, I. Gupta and J. Volakis, “Miniature continuous coverage antenna array for GNSS receivers,” IEEE Antennas and Wave Propagation Letters, 2008.

Markiel, J.N., D. Grejner-Brzezinska and C. Toth, “An Algorithm for the Extraction of Static Features from 3D Flash LADAR Datasets: Supporting Navigation in GPS Challenged Environments,” Proceedings, IEEE/ION PLANS Meeting, May 5-8, Monterey, California, CD ROM, 2008.

Martin, R., J. Velotta, and J. Raquet, "Multicarrier Modulations as a Navigation Signal of Opportunity," Proceedings of IEEE Aerospace Conference, Big Sky, MT, March 2008.

Martin, R. and M. Sambora, "Cross-Pollination of Image Registration, Navigation, and Source Localization," IEEE Signal Processing Magazine, January 28, 2008.

Moafipoor, S., Grejner-Brzezinska, D. A., Toth, C.K., “A Fuzzy Dead Reckoning Algorithm for a Personal Navigator,” Navigation, Winter 2008, Vol. 55, No. 4, pp. 241-254. (invited).

Morton, Y.T., Zhou, Q. and F. van Graas, “Assessment of Second Order Ionospheric Error in GPS Range Measurements Using Arecibo Incoherent Scatter Radar Measurements,” Proceedings of the 12th International Ionospheric Effects Symposium, Alexandria, VA, 13-15 May, 2008.

Morton, Y.T., van Graas, F., Zhou, Q., and J. Herdtner, “Assessment of Higher Order Ionosphere Error on Position Solutions,” Proceedings of ION GNSS 2008, Savannah, GA, September 2008.

Nowak, D. and G. Lamont, "Autonomous Self Organized UAV Swarm Systems," National Aerospace and Electronics Conference (NAECON), Dayton, OH, July 2008.

Nowak, D., G. Lamont, and G. Peterson, "Emergent Architecture in Self Organized Swarm Systems for Military Applications," ACM Genetic and Evolutionary Computation Conference (GECCO), Atlanta, GA, 12-16 July, 2008.

O’Brien A. and I. Gupta, “Mitigation of adaptive antenna-induced biases in GNSS receivers” Proceedings of ION 2008 National Technical Meeting, San Diego, CA, January 2008.

O’Brien A. and I. Gupta, “Optimum adaptive filtering for GNSS antenna arrays,” Proceedings of ION 2008 GNSS Conference, Savannah, GA, September 2008.

Pachter, M., P. Chandler, and S. Dharba, "Optimal MAV Operations in an Uncertain Environment," International Journal of Robust and Nonlinear Control, Vol. 18, Issue 2, January 2008, pp. 248-262.

Pachter, M., N. Ceccarelli, and P. Chandler, "Vision-Based Target Geo-Location Using Micro Aerial Vehicles," AIAA Journal of Guidance, Control and Dynamics, Vol. 31, No. 3, May-June 2008, pp. 597-615.

Pachter, M., "A Revisit of Linear-Quadratic Optimal Control," to appear in the Journal of Optimization Theory and Applications, Vol. 139, No. 3, December 2008.

Pachter, M., P. Chandler, and S. Dharba, "Optimal Control of an ATR Module Equipped MAV/Human Operator Team," Cooperative Networks: Control and Optimization, eds. D. Grundel, R. Murphey, P. Pardalos, and Prokopyev, Edward Egler Publishing, June 2008.

Pachter, M., "Unmanned Aerial Vehicles Cooperative Decision and Control: Challenge and Practical Approaches," eds. T. Shima and S. Rasmussen, SIAM, December 2008.

Pachter, M., "Target Motion Analysis Based on RF Power," Proceedings of the American Control Conference, June 11-13, 2008, Seattle, WA.

Pack, D., P. DeLima, G. Toussaint, and G. York, "Cooperative Control of UAVs for Localization of Intermittently Emitting Mobile Targets," Proceedings of the IEEE Transactions on Systems, Man, and Cybernetics, May 2008.

Raquet, J. and R. Martin, "Non-GNSS Radio Frequency Navigation," Proceedings of 2008 IEEE International Conference on Acoustics, Speech, and Signal Processing, Las Vegas, NV, March 2008.

Raquet, J. and J. Amt, "Flight and Ground Testing of a Beacon-Based Precision Navigation System at Non-GPS Frequencies," Proceedings of AIAA Test & Evaluation Conference, Los Angeles, CA, February 2008.

Raquet, J., C. Schexnayder, R. Martin, and J. Velotta, "Effects of Oversampling and Multipath on Navigation Using OFDM Signals of Opportunity, " Proceedings of the Institute of Navigation (ION) GNSS 2008, Savannah, GA, September 2008.

Soloviev, A., Gunawardena, S. and F. van Graas, “Deeply Integrated GPS/Low-Cost IMU for Low CNR Signal Processing: Concept Description and In-Flight Demonstration,” NAVIGATION: Journal of The Institute of Navigation, Vol. 55, No. 1, 2008.

Terning, N. and R. Cobb, "Guidance and Control for Tracking Moving Targets with Unmanned Air Systems," 33rd Dayton-Cincinnati Aerospace Science Symposium, March 2008.

Toth, C., N. Markiel and D. Brzezinska, “An Algorithm for Automated Feature Extraction from Laser Ranging Data,” ASPRS PECORA Conference, Denver, CO, November 19 – 21, 2008, CD-ROM.

Toth, C.K., Grejner-Brzezinska, D. A., Shin, S-W., Kwon, J., “A Method for Accurate Time Synchronization of Mobile Mapping Systems,” Journal of Applied Geodesy, Vol. 2, pp. 159-166, 2008.

Toth,C., Grejner-Brzezinska, D. A., Y-J. Lee, “Recovery of Sensor Platform Trajectory From LiDAR Data Using Reference Surfaces,” Proceedings, 13th FIG International Symposium on Deformation Measurements and 4th IAG Symposium on Geodesy for Geotechnical and Structural Engineering, Lisbon, May 12-15 2008, CD ROM, 2008.

Toth, C., Grejner-Brzezinska, D. A., Y-J. Lee, “Terrain-Based Navigation: Trajectory Recovery from LiDAR Data,” Proceedings, IEEE/ION PLANS Meeting, May 5-8, Monterey, California, CD ROM, 2008.

Uijt de Haag, M., Zhu, Z. and T. Arthur, “Performance Analysis and Integrity Aspects of Tight Optical Integration (TOI) with GPS,” Proceedings of ION/IEEE PLANS2008, Monterey, CA, 5-8 May 2008.

Uijt de Haag, M., Venable, D., and A. Soloviev, “Implementation of a Flash-LADAR Aided Inertial Navigator,” Proceedings of ION/IEEE PLANS2008, Monterey, CA, 5-8 May 2008.

Vadlamani, A. K. and M. Uijt de Haag, “Flight Test Results of Loose Integration of Dual Airborne Laser Scanners (DALS)/INS,” Proceedings of ION/IEEE PLANS2008, Monterey, CA, 5-8 May 2008.

Vantrease, T and R. Cobb, "Cursor-on-Target Control of Unmanned Aerial Vehicles," 33rd Dayton-Cincinnati Aerospace Science Symposium, March 2008.

Wang, X., C. Toth, D. Brzezinska and H. Sun, “ Integration of Terrestrial Laser Scanner for Ground Navigation in GPS-Challenged Environments,” International Archives of Photogrammetry and Remote Sensing, Vol. XXXVII, Part B5, pp. 513-519.

Wielgosz, P., S. Cellmer. Z. Rzepecka, and D.A. Grejner-Brzezinska, “Troposphere Modeling for Precise GPS Rapid Static Positioning in Mountainous Areas,” Proceedings, Savannah, Georgia, Sept. 16-19, ION GNSS, CD ROM, 2008.

Zmuda, M., A. Elesev, and Y. Morton, “Robot localization using RF and inertial sensors,” 2008 NAECOM, July 2008.

2007

Amt, J. and J. Raquet, “Flight Testing of a Pseudolite Navigation System on a UAV,” Proceedings of 2007 National Technical Meeting of the Institute of Navigation, San Diego, CA, Jan 2007.

Amt, J. and J. Raquet, “High Precision Positioning Using Pseudolites at Non-GPS Frequencies,” presented at 2007 Joint Navigation Conference, Orlando, FL, April 2007.

Bates, D. and F. van Graas, “Covariance Analysis Considering the Propagation of Laser Scanning Errors for Use in LADAR Navigation,” Proceedings of the 63^rd Annual Meeting of The Institute of Navigation, April 23-25, 2007, Cambridge, MA, pp. 624-634

Bates, D., Van Graas, F. and A. Vadlamani, “Continued Design and Development of the Ohio University Robotic Lawnmower,” Proceedings of the 20^th International Technical Meeting of the Satellite Division of The Institute of Navigation, Sept. 25-28, 2007, Ft. Worth, TX, pp. 1748-1753

Brenneman, M. T., Y. T. Morton, Q. Zhou, and G. Distler, “GPS Interference Source Angle of Arrival Determination Using Adaptive Periodogram Techniques,” Proc. 2007 ION National Tech. Meeting, p389-404, San Diego, CA, Jan., 2007.

Brenneman, M., Morton, J., Yang, C. and F. van Graas, “Mitigation of GPS Multipath Using Polarization and Spatial Diversities,” Proceedings of the 20^th International Technical Meeting of the Satellite Division of The Institute of Navigation, Sept. 25-28, 2007, Ft. Worth, TX, pp. 1221-1229

Bruckner, D., Soloviev, A. and F. van Graas “Characterization of GPS Signals in Urban Environments,” Proceedings of SET-104 North Atlantic Treaty Organization (NATO) Symposium on Military Capabilities Enabled by Advanced in Navigation Sensors, Oct. 1-2, 2007, Ankara, Turkey.

Campbell, J., Uijt de Haag, M. and F. van Graas, “Terrain-Referenced Precision Approach Guidance: Proof-of-Concept Flight Test Results,” NAVIGATION: Journal of The Institute of Navigation, Vol. 54, No. 1, 2007.

Church, C., and I. Gupta, “GNSS receivers biases due to non-linear phase of controlled pattern and fixed pattern antennas,” Proceedings of ION 2007 GNSS Conference, Fort Worth, TX, September 2007.

Dainty, B., J. Raquet, and R. Beckman,, “Use of Two-Way Time Transfer Measurements to Improve Geostationary Satellite Navigation,” Proceedings of ION GNSS-2007, Fort Worth, TX, Sep 2007.

Green, K., A. Hill, Y. Morton, M. Miller, J. Campbell, “A real-time position, velocity, and physiological monitoring and tracking device for equestrian and race training,” Proc. 2007 ION Global Nav. Satellite Sys., p1802-1806, Fort Worth, TX., Sept. 2007.

Garmatyuk, D., J. Schuerger, Y. Morton, K. Binns, M. Durbin, and J. Kimani, “Feasibility Study of a Multi-Carrier Dual-use Imaging Radar and Communication System,” Proc. 2007 European Radar Conf., Oct. 2007.

Garmatyuc, D., Y. T. Morton, “On coexistence of in-band UWB-OFDM and GPS signals,” Proc. 2007 ION National Tech. Meeting, p378-385, San Diego, CA, Jan., 2007.

Grejner-Brzezinska, D. A., C. Toth and S. Moafipoor, “Pedestrian tracking and navigation using adaptive knowledge system based on neural networks and fuzzy logic,” Journal of Applied Geodesy (in press), 2007.

Grejner-Brzezinska, D. A., P. Wielgosz, I. Kashani, D.A. Smith, P.S. J. Spencer, D.S. Robertson, G. L. Mader, “On Efficiency and Reliability of Ambiguity Resolution in Network-Based Real-Time Kinematic GPS,” ASCE Journal of Surveying Engineering, Vol. 133, No. 2, pp. 56–65, 2007.

Gupta, I., C. Church, A. O’Brien and C. Slick, “Prediction of antenna and antenna electronics induced biases in GNSS receivers,” Proceedings of ION 2007 National Technical Meeting, San Diego, CA, January 2007.

Gupta, I., J. Volakis and C. Chen, “A reduced size CRPA (R-CRPA) for GNSS receivers,” Proceedings of ION 2007 National Technical Meeting, San Diego, CA January 2007.

Gupta, I., I. Gupta and A. O’Brien, “Adaptive antenna induced biases in GNSS receivers,” Proceedings of ION 2007 Annual Meeting, Cambridge, MA, April 2007.

Huang, J. and F. van Graas, “Comparison of Tropospheric Decorrelation Errors in the Presence of Severe Weather Conditions in Different Areas and Over Different Baselines,” NAVIGATION: Journal of The Institute of Navigation, Vol. 54, No. 3, 2007.

Huang, J. and F. van Graas, “A DGNSS Single Frequency Carrier Phase Batch Processor with High Integrity,” Proceedings of the 63^rd Annual Meeting of The Institute of Navigation, April 23-25, 2007, Cambridge, MA, pp. 305-320

Kasemodel, J., C. Chen, I. Gupta and J. Volakis, “Compact wideband antenna array for GNSS receivers,” Proceedings of AMTA 2007 Annual Symposium, St. Louis, MO, November 2007.

McEllroy, J., J. Raquet, and M. Temple, “Innovation: Opportunistic Navigation—Finding Your Way with AM Signals of Opportunity,” GPS World, Vol 18, No. 7, pp. 44-49, Jul 2007.

Morton, Y. T., Q. Zhou,  M. Cosgrove, “Ionosphere Delay correction for Single Frequency GPS Receivers,” Proc. 2007 ION Annual Meeting, p479-484, Boston, MA,  April, 2007.

Morton, Y. T., M. Miller, J. B. Tsui, D. M. Lin, and Q. Zhou, “GPS Civil Signal Self-Interference Mitigation During Weak Signal Acquisition,” IEEE Trans. Signal Processing, Vol.55, No.12, p5859-5893, 2007.

Parikh, N., Soloviev, A. and F. van Graas, “Implementation of the Least Mean Square Approach for a Low-Cost Short Baseline Attitude Determination,” Proceedings of the 20^th International Technical Meeting of the Satellite Division of The Institute of Navigation, Sept. 25-28, 2007, Ft. Worth, TX, pp. 818-826

Raquet, J. and K. Cook, “Using Two-Way Time Transfer to Improve GPS Positioning Accuracy,” presented at 2007 Joint Navigation Conference, Orlando, FL, April 2007.

Raquet, J., M. Miller, and T. Nguyen, “Issues and Approaches for Navigation Using Signals of Opportunity,” Proceedings of 2007 National Technical Meeting of the Institute of Navigation, San Diego, CA, Jan 2007.

Robertson, D.S., Mader, G.L., “On Efficiency and Reliability of Ambiguity Resolution in Network-Based Real-Time Kinematic GPS,” ASCE Journal of Surveying Engineering, Vol. 133, No. 2, pp. 56–65, 2007.

Soloviev, A. and F. van Graas, “Enhancement of Integrated GPS/INS Performance Utilizing Frequency Domain Implementation of INS Calibration,” NAVIGATION: Journal of The Institute of Navigation, Vol. 54, No. 2, 2007.

Soloviev, A., Bates, D. and F. van Graas, “Tight Coupling of Laser Scanner and Inertial Measurements for a Fully Autonomous Relative Navigation Solution,” NAVIGATION: Journal of The Institute of Navigation, Vol. 54, No. 3, 2007.

Soloviev, A., Bruckner, D., Van Graas, F., and L. Marti, “Assessment of GPS Signal Quality in Urban Environments Using Deeply Integrated GPS/IMU,” Proceedings of the 2007 National Technical Meeting or The Institute of Navigation, January 22-24, 2007, San Diego, CA, pp. 815-828

Soloviev, A. and F. van Graas, “Decorrelation Errors on Inertial Coasting Performance,” Proceedings of the 63^rd Annual Meeting of The Institute of Navigation, April 23-25, 2007, Cambridge, MA, pp. 372-382

Toth, C., Grejner-Brzezinska, D.A., Moafipoor, S., “Pedestrian Tracking and Navigation Using Neural Networks and Fuzzy Logic,” Proceedings, IEEE International Symposium on Intelligent Signal Processing, Alcala De Henares, Madrid, Spain, October 3–5, 2007.

Toth, C. and Grejner-Brzezinska, D.A., “Vehicle Classification from LiDAR Data to Support Traffic Flow Estimates,” ISPRS Book Series on Mobile Mapping Technology, V. Tao, J. Li (editors), Taylor and Francis, pp. 119–130, 2007.

Veth, M. and J. Raquet, “Fusing Low-Cost Image and Inertial Sensors for Passive Navigation,” NAVIGATION: Journal of the Institute of Navigation, Vol. 54, No. 1, pp. 11-20, Spring 2007.

Yang, L., H. Xu, and Y. Morton, “Positioning and navigation with ultra-wideband signals,” Proc. 2007 ION Global Nav. Satellite Sys., p1861-1866, Fort Worth, TX., Sept. 2007.

Zhu, Z., Van Graas, F. and J. Starzyk, “GPS Signal Acquisition Using the Repeatability of Successive Code Phase Measurements,” GPS Solutions, Springer Berling/Heidelberg, Vol. 12, No. 1, January 2008 (published in December 2007).

Zhu, Z., Gunawardena, S., Uijt de Haag, M. and F. van Graas, “Satellite Anomaly and Interference Detection Using the GPS Anomalous Event Monitor,” Proceedings of the 63^rd Annual Meeting of The Institute of Navigation, April 23-25, 2007, Cambridge, MA, pp. 389-396

Zhu, Z., Gunawardena, S., Uijt de Haag, M. and F. van Graas, “Advanced GPS Performance Monitor,” Proceedings of the 20^th International Technical Meeting of the Satellite Division of The Institute of Navigation, Sept. 25-28, 2007, Ft. Worth, TX, pp. 415-423

Zmuda, M., Y. T. Morton, “Calibrating Non-GPS Navigation Sensors for Use in Robot Localization,” Proc. 2007 ION National Tech. Meeting, p1137-1146, Jan., 2007. 

2006

K. Cook, J. Raquet, and R. Beckman, “Characterizing the Impact of Incorporating Two-Way Time Transfer Measurements on Network Differential GPS Position Solutions,” Proceedings of ION GNSS-2006, Fort Worth, TX, Sep 2006.

D.A. Grejner-Brzezinska, C. K. Toth, Y. Jwa, S. Moafipoor and J. Kwon, “Seamless and reliable personal navigator,” Proceedings ION National Technical Meeting, January 18-20, Monterey, California, pp. 597–603, 2006.

S. Gunawardena, M. Uijt de Haag, F. van Graas and Z. Zhu, “Remote-Controlled, Continuously Operating GPS Anomalous Event Monitor,” Proceedings of the Institute of Navigation GNSS-06 Meeting, Ft. Worth, TX, September 2006.

I.J. Gupta, J.A. Ulrey, C.J. Reddy and C.B. Ravipati, ``Non-planar controlled reception pattern antennas for GPS receivers,” Proceedings of Institute of Navigation’s GNSS 2006 Conference, Fort Worth, TX, September 26-29, 2006.

J. McEllroy and J. Raquet, “Use of a Software Radio to Evaluate Signals of Opportunity for Navigation,” Proceedings of ION GNSS-2006, Fort Worth, TX, Sep 2006.

C. Miller, K. Pickering, B. Samic, Y. Morton, M. Miller, “Miami Metro Bus GPS Tracking,”  Proceedings of ION GNSS-2006, Fort Worth, TX, Sep 2006.

C. Spinelli and J. Raquet, “Development and Testing of a High-Rate Air-to-Air Relative Navigation System for UAV Refueling,” Proceedings of ION GNSS-2006, Fort Worth, TX, Sep 2006.

C. K. Toth, E. Paska, Q. Chen, Y. Zhu, R. Redmill, and U.Ozguner, “Mapping Support for the OSU DARPA Grand Challenge Vehicle,” Proceedings of the 2006 IEEE Intelligent Transportation Systems Conference, Toronto, Canada, September 17-20, pp. 1580–1585, 2006.

J.A. Ulrey and I.J. Gupta, ``Optimum element distribution for circular adaptive antenna systems,” Proceedings of Institute of Navigation’s 2006 National Technical Meeting, Monterey, CA, January 18-20, 2006.

M. Veth and J. Raquet, “Fusion of Low-Cost Imaging and Inertial Sensors for Navigation,” Proceedings of ION GNSS-2006, Fort Worth, TX, Sep 2006.

M. Veth, J. Raquet, M. Pachter, “Stochastic Constraints for Fast Image Correspondence Search with Uncertain Terrain Model,” IEEE Transactions on Aerospace and Electronics Systems, Vol. 42, No. 3, July 2006.

Zhou, Q., Y. T. Morton, “A case study of mesospheric gravity wave momentum flux and dynamical instability using the Arecibo dual beam incoherent scatter radar,” Geophy.Res.Let., 33, L10802, doi:10.1029/2005GL025608, 2006.

2005

J. Campbell, M. Uijt de Haag and F. van Graas, “Terrain Referenced Precision Approach Guidance,” Proceedings of the Institute of Navigation Technical Meeting, San Diego, CA, 24-26 January 2005.

Erickson, J., P. Maybeck, and J. Raquet, “Multipath-Adaptive GPS/INS Receiver,” IEEE Transactions on Aerospace and Electronic Systems, Vol. 41, No. 4, April 2005.

Fisher, K., J. Raquet “Navigation Potential of Signals Modeled with Multipath Effects and Noise,” Proceedings of 2005 National Technical Meeting of the Institute of Navigation, San Diego, CA, Jan 2005.

D. A. Grejner-Brzezinska, C. K. Toth, and Y. Yi, “On Improving Navigation Accuracy of GPS/INS Systems,” Photogrammetric Engineering and Remote Sensing, Vol. 71, No. 4 pp. 377–389, 2005.

D.A. Grejner-Brzezinska, I. Kashani and P. Wielgosz, “On Accuracy and Reliability of Instantaneous Network RTK as a Function of Network Geometry, Station Separation, and Data Processing Strategy,” GPS Solutions, Vol. 9, No. 3, pp. 179–193, 2005.

I. J. Gupta, E.H. Newman, C.C. Chen, W.D. Burnside and J.D. Krieger, ``A novel method for antenna gain and phase calibration,” Proceedings of Antenna Measurement Techniques Association’s 27^th Annual Meeting and Symposium, New Port, RI, October 30 – November 3, 2005.

I. J. Gupta, J.A. Ulrey and E.H. Newman, ``Effects of antenna element bandwidth on adaptive array performance,” IEEE Transactions on Antennas and Propagation, vol. 53, pp. 2332-2336, July 2005.

I. J. Gupta, ``Performance of various spatial AJ techniques with a GAS-1 CRPA mounted on a C-12J aircraft,” 2005 Joint Navigation Conference, Orlando, FL, April 2005.

J. Joffrion,  J. Raquet, and D. Brungart, “Head Tracking for 3D Audio Using a GPS-Aided MEMS IMU,” Proceedings of ION GNSS-2005, Long Beach, CA, Sep 2005.

I. Kashani, D.A. Grejner-Brzezinska and P. Wielgosz, “Towards Instantaneous Network-Based RTK GPS Over 100 km Distance,” Navigation, 2005 (in print).

J. D. Martin, Y. T. Morton, Q. Zhou, “Neural Network Development for the Forecasting of Upper Atmosphere Parameter Distributions,” Advances in Space Research, vol.36, no.12, pp.2480-2485, 2005.

L. L. Liou, D. M. Lin, J. B. Tsui, J. Schamus, and Y. T. Morton, “Baseline Vector Measurement Using a Two-Channel Software GPS Receiver,”  Proceedings of Institute of Navigation GNSS 2005 Conference, Long Beach, CA,  September 13-16, 2005.

L. L. Liou, D. M. Lin, J. B. Tsui, J. Schamus, and Y. T. Morton, “GPS Time Tag Using Software GPS Receiver Approach,” Proceedings of Institute of Navigation GNSS 2005 Conference, Long Beach, CA,  September 13-16, 2005.

L. L. Liou, D. M. Lin, J. B. Tsui, J. Schamus, and Y. T. Morton, “Frequency Characterization of A/D Converter in Software GPS Receivers,” Proceedings of the 2005 Joint IEEE International Frequency Control Symposium and Precise Time & Time Interval Systems & Applications Meeting, Vancouver, Canada, August 29-31, 2005.

Y. T. Morton, L. L. Liou, D. M. Lin, J. B. Tsui, Q. Zhou, “Broadband interference cancellation using digital beam forming and a software receiver,”  Proceedings of Institute of Navigation GNSS 2005 Conference, Long Beach, CA,  September 13-16, 2005.

Y. T. Morton, M. P. French, Q. Zhou, J. B. Y. Tsui, D. M. Lin, M. M. Miller, D. Jennings, “A Software Approach to Access Ultra-Wide Band Interference on GPS Receivers,” IEEE Transactions on Aerospace & Electronics Magazine, vol.20, no.1, pp.28-33, 2005.

J. E. Smith, Y. T. Morton, and S. Campbell, “Design and implementation of a control algorithm for an autonomous lawn mower,” Proceedings of 48th IEEE International Midwest Symposium on Circuits & Systems, Cincinnati, OH, August 7-10, 2005.

A. Soloviev, S. Gunawardena and F. van Graas, “Development of High Performance High Update Rate Reference GPS Receiver,” Proceedings of the Institute of Navigation GNSS-05 Meeting, Long Beach, CA, September 2005.

C. K.  Toth and D. A. Grejner-Brzezinska, “Vehicle Classification from LiDAR Data to Support Traffic Flow Estimates,” ISPRS Book Series on Mobile Mapping Technology, editors: V. Tao and J. L, Taylor and Francis, 2005, (in press).

D. Woodfork, J. Raquet, and R. Racca, “Use of X-Ray Pulsars for Aiding GPS Satellite Orbit Determination,” Proceedings of 2005 Annual Meeting of the Institute of Navigation, Boston, MA, Jun 2005.

F. van Graas, A. Soloviev, M. Uijt de Haag, S. Gunawardena, and M. Braasch, “Comparison of Two Approaches for GNSS Receiver Algorithms: Batch Processing and Sequential Processing Considerations,” Proceedings of the Institute of Navigation GNSS-05 Meeting,  Long Beach, CA, September 2005.

Q. Zhou and Y. T. Morton, “Incoherent scatter radar study of photochemistry in the E-region,” Geophysics Research Letter, vol.32, no.1, L01103, doi:10.1029/2004GL021275, 2005.

2004

D. Aloi and F. van Graas, “Ground Multipath Mitigation via Polarization Steering of GPS Signal,” IEEE Transactions on Aerospace and Electronic Systems, vol. 40, no. 2, April 2004.

T. Bouska and J. Raquet, “Development and Simulation of a Pseudolite-Based Flight Reference System,” Proceedings of 2004 National Technical Meeting of the Institute of Navigation, San Diego, CA, Jan 2004.

D. A. Grejner-Brzezinska, Y. Yi, C. K. Toth, R. Anderson, J. Davenport, D. Kopcha and R. Salman, “On the improved gravity compensation in inertial navigation,“ Photogrammetric Engineering and Remote Sensing, Vol. 70, No. 6, pp. 663–664, 2004.

I. J. Gupta, ``Stray signal source location in far-field antenna/RCS ranges,” IEEE Antennas and Propagation Magazine, vol. 46, pp. 20-29, June 2004.

I. J. Gupta and T.D. Moore, ``Space-frequency adaptive processing (SFAP) for radio frequency interference mitigation in spread-spectrum receivers,” IEEE Transactions on Antennas and Propagatio, vol. 52, pp. 1611-1616, June 2004.

I. Kashani, P. Wielgosz, D. A. Grejner-Brzezinska, “The Effect of Double Difference Ionospheric Corrections Latency on Instantaneous Ambiguity Resolution in Long-Range RTK,” Proceedings, ION GPS/GNSS, September 21-24, Long Beach, California, pp. 2881–2890, 2004.

L. Marti and F. van Graas, “Interference Detection by Means of the Software Defined Radio,” Proceedings of the International Meeting of the Satellite Division of The Institute of Navigation, GPS/GNSS 2004, 22-24 September 2004, Long Beach, CA.

L. Marti and F. van Graas, “The Effects of Aircraft Overflights on GPS Measurements,” NAVIGATION: Journal of The Institute of Navigation, vol. 51, no. 2, Summer 2004.

L. Marti and F. van Graas, “Bias Detection and its Confidence Assessment in Global Positioning System Signals, Proceedings of 2004 IEEE Aerospace Conference, 6-13 March 2004, Big Sky, Montana.

C. P. Mantz, Q. Zhou, and Y. T. Morton, “Application of a Neural Network Model to GPS Ionosphere Error Correction,” Proceedings of the 2004 IEEE PLANS Conference, Monterey, CA, April 27-30, 2004.

Y. T. Morton, L. L. Liou, D. M. Lin, J. B.Y. Tsui, and Q. Zhou “Interference Cancellation Using Power Minimization and Self-coherence Properties of GPS Signals,” Proceedings of Institute of Navigation GNSS 2004 Conference, Long Beach, CA, September 21-24, 2004.

F. van Graas and A. Soloviev, “Precise Velocity Estimation Using a Stand-Alone GPS Receiver,” NAVIGATION: Journal of The Institute of Navigation, vol. 51, no. 4, 2004.

F. van Graas, C. Bartone and T. Arthur, “GPS Antenna Phase and Group Delay Corrections,” Proceedings of the National Technical Meeting of The Institute of Navigation, 26-28 January 2004, San Diego, CA.

Q. Zhou, Y. T. Morton, J. D. Mathews, and D. Janches, “Aspect sensitivity of VHF echoes from field aligned irregularities in meteor trails and thin ionization layers,” Atmospheric Chemistry & Physics, vol.4, pp.685-692, 2004.

2003

J. Campbell, M. Uijt de Haag, F. Van Graas and S. Young, “Light Detection and Ranging-Based Terrain Navigation – A Concept Exploration,” Proceedings of the 16^th International Technical Meeting of the Satellite Division of The Institute of Navigation, 9-12 Sept. 2003, Portland, Oregon.

I.J. Gupta, W.D. Burnside, J.F. Lee and R.D. Flippo, ``A novel structure for accurate measurements of antenna mounted on ground planes,” Proceedings of Antenna Measurement Techniques Association’s 25^th Annual Meeting and Symposium, pp. 166-170, Irvine, CA, October 19-24, 2003.

I.J. Gupta and M.L. Rankin, ``Effects of platform generated multipath on GPS AJ systems, Technical Report 741718-2, The Ohio State University ElectroScience Laboratory, June 2003.

I.J. Gupta et. al., ``An Experimental study of antenna array calibration,” IEEE Transactions on Antennas and Propagation, vol. 51, pp. 664-667, March 2003.

T. D. Moore and I. J. Gupta, ``The effect of interference power and bandwidth on space-time adaptive processing,” Proceedings of IEEE Antennas and Propagation Society’s International Symposium, vol. 1, pp. 53-56, Columbus, OH, June 2003.

J. Kwon, D. A. Grejner-Brzezinska, T-S. Bae and C-K. Hong, “Triple Difference Approach to Low Earth Orbiter Precision Orbit Determination,” Journal of Navigation, Vol. 56, pp. 457– 473, 2003.

Y. T. Morton, J. B. Tsui, D. M. Lin, M. M. Miller, J. Schamus, Q. Zhou, and M. P. French, “Assessment and handling of CA code self-interference during weak GPS signal acquisition”, Proceedings of Institute of Navigation GPS/GNSS 2003 Conference, Portland, OR, September 9-12, 2003.

L. L. Liou, J. B. Tsui, D. M. Lin, J. Schamus, F. van Graas, and Y. T. J. Morton, “Passive Altimeter Study Using GPS Flight Data,” Proceedings of Institute of Navigation GPS/GNSS 2003 Conference, Portland, OR, September 9-12, 2003.

J. Pang, F. van Graas and J. Starzyk, “Fast Direct GPS P-Code Acquisition,” GPS Solutions, Springer-Verlag Heidelberg, vol. 7, no. 3, December 2003.

C. K. Toth, and D. A. Grejner-Brzezinska, “Redefining the Paradigm of Modern Mobile Mapping: A Framework for an Automated Roadway Mapping,” Photogrammetric Engineering and Remote Sensing, Vol. 70, No. 6, pp. 685–694, 2003.

D. B. Thornberg, D. S. Thornberg, M. F. DiBenedetto, M. S. Braasch, F. van Graas and C. Bartone, “LAAS Integrated Multipath-Limiting Antenna,” Navigation: Journal of The Institute of Navigation, vol. 50, no. 2, 2003.

D. Warren and J. Raquet, “Broadcast vs. Precise GPS Ephemerides: An Historical Perspective,” GPS Solutions, Vol 7, No. 3, pp. 151-156, December 2003.

Raquet, J. and M. Giebner, “Navigation Using Optical Measurements of Objects at Unknown Locations,” Proceeedings of 2003 Annual Meeting of the Institute of Navigation, Albuquerque, NM, June 2003.

Before 2003

D. A. Grejner-Brzezinska, Y. Yi and C. K. Toth, “Bridging GPS Gaps in Urban Canyons: The Benefits of ZUPT,” Navigation, Vol. 48, No. 4, pp. 217–225, 2002.

D. A. Grejner-Brzezinska and Y. Yi, “Experimental GPS/INS/Pseudolite System for Kinematic Positioning,” Survey Review, Vol. 37, No. 288, pp. 113–126, 2002.

I. J. Gupta, ``Time domain near field focusing to map stray signals in spherical ranges,’’ Proceedings of Antenna Measurement Techniques Associations 24^th Annual Meeting and Symposium, pp. 37-42, Cleveland, OH, November 3-8, 2002.

I. J. Gupta, T. D. Moore and R. L. Rankin, ``Space-time adaptive processing and space-frequency adaptive processing for GPS interference suppression,” Technical Report 741074-1, The Ohio State University ElectroScience Laboratory, January 2002.

Henderson, P., J. Raquet, and P. Maybeck, “A Multiple Filter Approach for Precise DGPS Positioning and Carrier-Phase Ambiguity Resolution,” NAVIGATION, Journal of The Institute of Navigation, Vol. 49, No. 3, pp. 149-160, Fall 2002.

D. M. Lin, J. B. Tsui, L. L. Liou, and Y. T. Morton, "Sensitivity analysis of a stand alone GPS software GPS receiver and an acquisition method", Proceedings of Institute of Navigation GPS 2002 Conference, Portland, OR, September 9-12, 2003. Portland, OR, September 24-27, 2002.

J. MacNicol and J. Raquet, “A Study Of Satellite Navigation, Dilution Of Precision, And Positioning Techniques For Use On And Around The Moon”, Proceedings of 2002 Annual Meeting of the Institute of Navigation, Albuquerque, NM, June 2002.

R. A. Gray and F. van Graas, “Inflight Detection of Errors for Enhanced Aircraft Flight Safety using DTED with GPS and Radar Altimeter,” NAVIGATION: Journal of The Institute of Navigation, vol. 47, no. 4, Winter 2000-2001.

I. J. Gupta, J. D. Young and S. W. Ellingson, ``Design, fabrication and calibration of two 6-element antenna arrays for TDOA receivers,” Technical Report 739225-3, The Ohio State University ElectroScience Laboratory, February 2001.

C. Bartone and F. van Graas, “Ranging Airport Pseudolite for Local Area Augmentation,” IEEE Transactions on Aerospace and Electronic Systems, vol. 36, no. 1, January 2000.

I.J. Gupta and S.W. Ellingson, ``Multipath parameter estimation in TDOA receivers,” Technical Report 739225-2, The Ohio State University ElectroScience Laboratory, December 2000.

D. A. Grejner-Brzezinska, “Direct Exterior Orientation of Airborne Imagery with GPS/INS System: Performance Analysis,” Navigation, Vol. 46, No. 4, pp. 261–270, 1999.

D. A. Grejner-Brzezinska and Wang J., “Gravity Modeling for High-Accuracy GPS/INS Integration,” Navigation, Vol. 45, No. 3, pp.209–220, 1998.

D. A. Grejner-Brzezinska, R. Da and C. K. Toth, “GPS Error Modeling and OTF Ambiguity Resolution for High-Accuracy GPS/INS Integrated System,” Journal of Geodesy, Vol. 72, No. 11, pp. 628–638, 1998.

J. Raquet, G. Lachapelle, W. Qiu, C. Pelletier, T. Nash, F. B. Snodgrass, P. Fenton, T. Holden, “Development and Testing of a Mobile Pseudolite Concept for Precise Positioning,” NAVIGATION, Journal of The Institute of Navigation, Vol. 43 No. 2, pp. 149-165, Summer 1996.