
Global Positioning System (GPS) technology and applications for real-time satellite orbit and attitude determination, GPS surface reflections, GPS multipath characterization and mitigation, orbital dynamics and spacecraft rendezvous.
Lane, C., P. Axelrad, “Formation Design in Eccentric Orbits Using Linearized Equations of Relative Motion,” Journal of Guidance, Control, and Dynamics, Vol. 29, No. 1, p. 146-160, 2006.
Meek, M.C., G.H Born, and P. Axelrad, “Automated Operational Orbit Determination for the Ice Cloud and Land Elevation Satellite Mission,” Journal of Spacecraft and Rockets, Vol. 43, No. 5, p. 1048-1053, Sept-Oct 2006.
Belmonte-Rivas, M., J. Maslanik, J. Sonntag, P. Axelrad, “Sea Ice Roughness from Airborne Lidar Profiles,” IEEE Transactions on Geoscience and Remote Sensing, Volume 44, Issue 11, p. 3032 – 3037, 2006.
Lane, C. and P. Axelrad, “Analysis of Relative Navigation in High Earth Orbits,” Journal of the Astronautical Sciences, Vol. 55, No 1, Jan-Mar 2007, p. 23-52.
Larson, K., A. Bilich, and P. Axelrad, “Improving the precision of high-rate GPS,” Journal of Geophysical Research, 112, B05422, doi:10.1029/2006JB004367, 2007.
Lane, C. and P. Axelrad, “Relative Semimajor Axis Uncertainty in High Earth Orbits,” Journal of Guidance, Control, and Dynamics, Vol. 30, No. 6, p. 1827-1830, 2007.
Weiss, Jan P., P. Axelrad, S. Anderson, “A GNSS Code Multipath Model for Semi-Urban, Aircraft, and Ship Environments,” Navigation: Journal of the Institute of Navigation, Vol. 54, No.4, p. 294-307, 2007.
Larson, K. M., E. E. Small, E. Gutmann, A. Bilich, P. Axelrad, and J. Braun, “Using GPS multipath to measure soil moisture fluctuations: initial results,” GPS Solutions, Vol 12 (3), p. 173-177, doi:10.1007/s10291-007-0076-6, July 2008.
Bilich, A., K. M. Larson and P. Axelrad, “Modeling GPS Phase Multipath with SNR: Case study from Salar de Uyuni, Bolivia,” Journal of Geophysical Research, 113, B04401, doi:10.1029/2007JB005194, 2008.
Jah, M.K., M.E. Lisano, G.H. Born, and P. Axelrad, “Mars Aerobraking Spacecraft State Estimation by Processing Inertial Measurement Unit Data,” Journal of Guidance, Control, and Dynamics, Vol. 31, No. 6, p. 1802-1813, 2008.
Tombasco, J. , and P. Axelrad, “Linearized Relative State Estimation and Data Association for Orbit Determination of Clustered Geosynchronous Satellties,” AIAA/AAS Astrodynamics Specialist Conference and Exhibit, Honolulu, HI, 22 pages, AIAA 2008-6605, August 18-21, 2008.
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