Performance Bounds for Carrier-to-Noise Ratio Estimation in GPS Receivers

K. Ramasubramanian and S. Nadig

Abstract:	In this paper, we consider the problem of carrier-to-noise ratio estimation in GPS receivers. We derive performance bounds (Cramer-Rao Lower Bound) for the estimation accuracy of C/N0 in the acquisition and tracking modes. These bounds help in understanding what is the best mean squared estimation error we can expect to achieve and how that changes as a function of various design parameters. We compare the performance of the Narrow-band Power, Wide-band Power method for C/N0 estimation and show that it performs very close to the CRLB.
Published in:	Proceedings of the 2006 National Technical Meeting of The Institute of Navigation January 18 - 20, 2006 Hyatt Regency Hotel Monterey, CA
Pages:	953 - 957
Cite this article:	Ramasubramanian, K., Nadig, S., "Performance Bounds for Carrier-to-Noise Ratio Estimation in GPS Receivers," Proceedings of the 2006 National Technical Meeting of The Institute of Navigation, Monterey, CA, January 2006, pp. 953-957.
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