Performance analysis of GPS receivers in non-Gaussian noise incorporating precorrelation filter and sampling rate.

Global positioning system (GPS) receivers find growing applications in indoor and outdoor communication environments, including urban and rural areas. Interference and noise sources for GPS receivers may assume Gaussian or non-Gaussian distributions. The GPS receiver performance under Gaussian additive noise has been studied. Non-Gaussian noise may equally contaminate the GPS satellite signals and disturb the receiver delay lock loops (DLL), producing significant tracking errors. These sources include impulsive noise, ultra-wideband (UWB) signals, and impulse and noise radar signals for target tracking and indoor imaging applications. This paper considers non-Gaussian noise of finite variance and examines its effect on the discriminator outputs for the commercial GPS receiver that uses the coarse acquisition (C/A) code. The correlator noise output components are produced from the correlation between the noise sequence and the early, late, and punctual reference C/A code. Due to the long time averaging, which is characteristic of the GPS correlation loops, these components assume Gaussian distributions. The discriminator tracking error variance is derived, incorporating the effect of noise, the front-end precorrelation filter, and the sampling rate.

Main Author: Liu, Liyu.
Other Authors: Amin, Moeness G.
Format: Villanova Faculty Authorship
Language: English
Published: 2008
Online Access: http://ezproxy.villanova.edu/login?url=https://digital.library.villanova.edu/Item/vudl:173546
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dc_source_str_mv IEEE TRANSACTIONS ON SIGNAL PROCESSING, VOL. 56, NO. 3, MARCH 2008.
author Liu, Liyu.
author_facet_str_mv Liu, Liyu.
Amin, Moeness G.
author_or_contributor_facet_str_mv Liu, Liyu.
Amin, Moeness G.
author_s Liu, Liyu.
spellingShingle Liu, Liyu.
Performance analysis of GPS receivers in non-Gaussian noise incorporating precorrelation filter and sampling rate.
author-letter Liu, Liyu.
author_sort_str Liu, Liyu.
author2 Amin, Moeness G.
author2Str Amin, Moeness G.
dc_title_str Performance analysis of GPS receivers in non-Gaussian noise incorporating precorrelation filter and sampling rate.
title Performance analysis of GPS receivers in non-Gaussian noise incorporating precorrelation filter and sampling rate.
title_short Performance analysis of GPS receivers in non-Gaussian noise incorporating precorrelation filter and sampling rate.
title_full Performance analysis of GPS receivers in non-Gaussian noise incorporating precorrelation filter and sampling rate.
title_fullStr Performance analysis of GPS receivers in non-Gaussian noise incorporating precorrelation filter and sampling rate.
title_full_unstemmed Performance analysis of GPS receivers in non-Gaussian noise incorporating precorrelation filter and sampling rate.
collection_title_sort_str performance analysis of gps receivers in non-gaussian noise incorporating precorrelation filter and sampling rate.
title_sort performance analysis of gps receivers in non-gaussian noise incorporating precorrelation filter and sampling rate.
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description Global positioning system (GPS) receivers find growing applications in indoor and outdoor communication environments, including urban and rural areas. Interference and noise sources for GPS receivers may assume Gaussian or non-Gaussian distributions. The GPS receiver performance under Gaussian additive noise has been studied. Non-Gaussian noise may equally contaminate the GPS satellite signals and disturb the receiver delay lock loops (DLL), producing significant tracking errors. These sources include impulsive noise, ultra-wideband (UWB) signals, and impulse and noise radar signals for target tracking and indoor imaging applications. This paper considers non-Gaussian noise of finite variance and examines its effect on the discriminator outputs for the commercial GPS receiver that uses the coarse acquisition (C/A) code. The correlator noise output components are produced from the correlation between the noise sequence and the early, late, and punctual reference C/A code. Due to the long time averaging, which is characteristic of the GPS correlation loops, these components assume Gaussian distributions. The discriminator tracking error variance is derived, incorporating the effect of noise, the front-end precorrelation filter, and the sampling rate.
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dc.title Performance analysis of GPS receivers in non-Gaussian noise incorporating precorrelation filter and sampling rate.
dc.creator Liu, Liyu.
Amin, Moeness G.
dc.description Global positioning system (GPS) receivers find growing applications in indoor and outdoor communication environments, including urban and rural areas. Interference and noise sources for GPS receivers may assume Gaussian or non-Gaussian distributions. The GPS receiver performance under Gaussian additive noise has been studied. Non-Gaussian noise may equally contaminate the GPS satellite signals and disturb the receiver delay lock loops (DLL), producing significant tracking errors. These sources include impulsive noise, ultra-wideband (UWB) signals, and impulse and noise radar signals for target tracking and indoor imaging applications. This paper considers non-Gaussian noise of finite variance and examines its effect on the discriminator outputs for the commercial GPS receiver that uses the coarse acquisition (C/A) code. The correlator noise output components are produced from the correlation between the noise sequence and the early, late, and punctual reference C/A code. Due to the long time averaging, which is characteristic of the GPS correlation loops, these components assume Gaussian distributions. The discriminator tracking error variance is derived, incorporating the effect of noise, the front-end precorrelation filter, and the sampling rate.
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