Nonuniform tap spacing in a GPS spherical adaptive array

Alix Rivera-Albino; Constantine Balanis

doi:10.1109/LAWP.2012.2208173

Nonuniform tap spacing in a GPS spherical adaptive array

Alix Rivera-Albino, Constantine Balanis

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

This letter introduces a signal processing procedure that improves the performance of the basic Global Positioning System (GPS) receivers. The proposed signal process incorporates fixed nonuniform tap delays to a seven-element spherical array to mitigate the degrading impact of multipath propagation in satellite communications. Contrary to the time-consuming tap-delay-tracking algorithms, the proposed nonuniform tap delays do not increase the complexity of the signal processing when compared to those of the uniform spaced delays. Using standardized channel models, it is shown that, for a bit error rate (BER) of 10$ ^-3, the system can operate with 1-2 dB less signal-to-noise ratio (SNR) when an exponential distribution is used instead of the uniform.

Original language	English (US)
Article number	6237481
Pages (from-to)	822-825
Number of pages	4
Journal	IEEE Antennas and Wireless Propagation Letters
Volume	11
DOIs	https://doi.org/10.1109/LAWP.2012.2208173
State	Published - 2012

Keywords

Adaptive array
delay line
multipath channel
satellite navigation system

ASJC Scopus subject areas

Electrical and Electronic Engineering

Access to Document

10.1109/LAWP.2012.2208173

Cite this

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title = "Nonuniform tap spacing in a GPS spherical adaptive array",

abstract = "This letter introduces a signal processing procedure that improves the performance of the basic Global Positioning System (GPS) receivers. The proposed signal process incorporates fixed nonuniform tap delays to a seven-element spherical array to mitigate the degrading impact of multipath propagation in satellite communications. Contrary to the time-consuming tap-delay-tracking algorithms, the proposed nonuniform tap delays do not increase the complexity of the signal processing when compared to those of the uniform spaced delays. Using standardized channel models, it is shown that, for a bit error rate (BER) of 10$ -3, the system can operate with 1-2 dB less signal-to-noise ratio (SNR) when an exponential distribution is used instead of the uniform.",

keywords = "Adaptive array, delay line, multipath channel, satellite navigation system",

author = "Alix Rivera-Albino and Constantine Balanis",

note = "Funding Information: Manuscript received May 08, 2012; accepted July 02, 2012. Date of publication July 11, 2012; date of current version July 24, 2012. This work was supported by the AFRL/RYDX (Electronics Exploration Branch), Wright-Pat-terson Air Force Base, Dayton, OH.",

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AU - Balanis, Constantine

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N2 - This letter introduces a signal processing procedure that improves the performance of the basic Global Positioning System (GPS) receivers. The proposed signal process incorporates fixed nonuniform tap delays to a seven-element spherical array to mitigate the degrading impact of multipath propagation in satellite communications. Contrary to the time-consuming tap-delay-tracking algorithms, the proposed nonuniform tap delays do not increase the complexity of the signal processing when compared to those of the uniform spaced delays. Using standardized channel models, it is shown that, for a bit error rate (BER) of 10$ -3, the system can operate with 1-2 dB less signal-to-noise ratio (SNR) when an exponential distribution is used instead of the uniform.

AB - This letter introduces a signal processing procedure that improves the performance of the basic Global Positioning System (GPS) receivers. The proposed signal process incorporates fixed nonuniform tap delays to a seven-element spherical array to mitigate the degrading impact of multipath propagation in satellite communications. Contrary to the time-consuming tap-delay-tracking algorithms, the proposed nonuniform tap delays do not increase the complexity of the signal processing when compared to those of the uniform spaced delays. Using standardized channel models, it is shown that, for a bit error rate (BER) of 10$ -3, the system can operate with 1-2 dB less signal-to-noise ratio (SNR) when an exponential distribution is used instead of the uniform.

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Nonuniform tap spacing in a GPS spherical adaptive array

Abstract

Keywords

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