A Block Processing Carrier to Noise Ratio Estimator for the Global Positioning System

Michelle Sayre

Abstract:	An existing carrier to noise ratio, C/No, estimator accumulates wide and narrow band powers to determine C/No. This estimator is biased by approximately –0.22 dB-Hz and has noise better than 0.5 dB-Hz (95%) for C/No’s between 40 and 56 dB-Hz averaged over 1 s. In this paper, a block processing C/No estimator that maximizes the observability of the C/No using frequency domain techniques is developed. The block processing C/No estimator is unbiased and has noise below 0.09 dBHz (95%) for C/No’s between 40 and 56 dB-Hz averaged over 1 s.
Published in:	Proceedings of the 2004 National Technical Meeting of The Institute of Navigation January 26 - 28, 2004 The Catamaran Resort Hotel San Diego, CA
Pages:	862 - 868
Cite this article:	Sayre, Michelle, "A Block Processing Carrier to Noise Ratio Estimator for the Global Positioning System," Proceedings of the 2004 National Technical Meeting of The Institute of Navigation, San Diego, CA, January 2004, pp. 862-868.
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