Collection and Analysis of GPS Raw Data for Multipath Modeling and Receiver Testing

Thomas Thompson, Larry J. Levy, J. Marsh Dougherty, Thomas M. Hattox

Abstract:	fielded by The Johns Hopkins University/Applied Physics Laboratory (JHWAPL) to collect full spectrum GPS signal data for post-mission re-creation of the real-time signal environment. The data, in this case, were collected during an aircraft flight exercise to observe GPS multipath effects and to demonstrate the post-mission receiver testing capability of the instrumentation. Flight data were collected April IO,1996 in two regions: a low over-water segment, and a landing/takeoff segment (including a series of “touch-and-go” passes). The paper will describe the test instrumentation, discuss the data collection conditions, and present initial data processing results. Although more work remains, test results have already demonstrated that full-spectrum GPS signals can be effectively recorded for post-flight receiver evaluation.
Published in:	Proceedings of the 52nd Annual Meeting of The Institute of Navigation (1996) June 19 - 21, 1996 Royal Sonesta Hotel Cambridge, MA
Pages:	299 - 304
Cite this article:	Thompson, Thomas, Levy, Larry J., Dougherty, J. Marsh, Hattox, Thomas M., "Collection and Analysis of GPS Raw Data for Multipath Modeling and Receiver Testing," Proceedings of the 52nd Annual Meeting of The Institute of Navigation (1996), Cambridge, MA, June 1996, pp. 299-304.
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