New Results From Time Domain Analysis of GPS Jamming Interference

John Lukesh

Abstract:	A high frequency time domain code sequence simulation program has been used to obtain low frequency models for the GPS receiver early, prompt, and late (in phase and quadrature) products (the “I’s and Q’s”), including random noise models for white noise and jamming contributions. The noise and jamming contributions to the I's and Q's are correlated. 6 x 6 error covariance matrices were obtained for the effects. These were then factored to obtain transformation matrices that can be used to obtain the correlated random error contributions for the low frequency I and Q models. The low frequency models for the I's and Q's were incorporated into a GPS/INS simulation program. This includes operational software with a Kalman filter in the loops (both carrier and code). The filter has models for the ionosphere delay/advance, and for carrier cycle slip errors. Jamming tolerance of the system was shown to be very good
Published in:	Proceedings of the 57th Annual Meeting of The Institute of Navigation (2001) June 11 - 13, 2001 Albuquerque, NM
Pages:	291 - 303
Cite this article:	Lukesh, John, "New Results From Time Domain Analysis of GPS Jamming Interference," Proceedings of the 57th Annual Meeting of The Institute of Navigation (2001), Albuquerque, NM, June 2001, pp. 291-303.
Full Paper:	ION Members/Non-Members: 1 Download Credit Sign In