Performance analysis of GPS pseudolite interference mitigation using adaptive spatial beamforming

Jyh-Chin Juang, Chung Liang Chang

Research output: Contribution to conferencePaperpeer-review

11 Citations (Scopus)

Abstract

This paper analyzes, through simulations and experiments, GPS interference mitigation performance against narrowband and pseudolite interferences using adaptive spatial beamforming techniques. The performance of the GPS is known to be susceptible to interferences. Among all interference mitigation techniques, the adaptive antenna array approach is known to be one the most effective as it is capable of creating a null along the direction of the interferer or selectively enhancing the signal quality along the direction of the desired signal source. In the paper, the use of adaptive antenna array in GPS interference mitigation is assessed by means of algorithm development, simulation analysis, and experimental test. In particular, pseudolite-type interferences are considered. A pseudolite-type interference resembles a GPS signal and may affect the signal reception and navigation computation. In the paper, it is shown that against continuous-wave interference and pseudolite-type interferences, a 2×2 array through adaptive processing is capable of tolerating up to 30 dB interference-to-signal ratio.

Original languageEnglish
Pages1179-1187
Number of pages9
Publication statusPublished - 2005 Dec 1
EventProceedings of the 61st Annual Meeting of The Institute of Navigation - Cambridge, MA, United States
Duration: 2005 Jun 272005 Jun 29

Other

OtherProceedings of the 61st Annual Meeting of The Institute of Navigation
Country/TerritoryUnited States
CityCambridge, MA
Period05-06-2705-06-29

All Science Journal Classification (ASJC) codes

  • Transportation
  • Aerospace Engineering

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