Receiver Processing Losses with Bandlimiting and One-Bit Sampling

J.W. Betz and N.R. Shnidman

Abstract:	There has long been interest in determining the effect of sampling and quantization on weak signal detection using a matched filter or correlation detector. Theoretical and experimental results have been developed for decades, with initial emphasis on one-bit sampling where analytical results are most readily obtained. In the context of Global Navigation Satellite System (GNSS) receiver processing, results are well-known for desired signals having conventional (binary phase shift keying with rectangular spreading symbols) spreading modulations in white noise. More recently, as GNSS signal powers have been increasing and more signals share the same spectral bands, there has also been increased interest in quantifying the effects of GNSS interference on GNSS receiver performance. Until now, however, there has been no comprehensive work that assesses the combined effect of GNSS interference, bandlimiting, sampling, and quantizing. This paper proposes an overall framework for quantifying the effects of GNSS interference on a receiver that performs sampling and quantization. An extensive set of numerical values for one-bit sampling is provided based on this model for the case of one-bit sampling. The numerical results validate the proposed model, and thus can be used to predict processing losses due to the phenomena examined in this paper. Theoretical interpretations are also provided for the simulation results. Additional publications are planned to account for uniform quantization using more than one bit.
Published in:	Proceedings of the 20th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2007) September 25 - 28, 2007 Fort Worth Convention Center Fort Worth, TX
Pages:	1244 - 1256
Cite this article:	Betz, J.W., Shnidman, N.R., "Receiver Processing Losses with Bandlimiting and One-Bit Sampling," Proceedings of the 20th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2007), Fort Worth, TX, September 2007, pp. 1244-1256.
Full Paper:	ION Members/Non-Members: 1 Download Credit Sign In