Two Approaches for GPS Interference Annihilation

Wei-Yu Chen, Fan-Ren Chang, Hen-Wai Tsao, Wei-Lung Mao

Abstract:	GPS receivers can cope with part of wideband noise (such as thermal noise and channel noise) or low power narrowband interference by the processing gain. However, GPS receivers cannot reject high power interference. Therefore, interference suppression research has become an important issue. In this paper, we use Overlapped Fast Fourier Transform (OFFT) and Hilbert-Huang Transform (HHT) approaches to remove possible interferences. Single tone and frequency modulation (FM) interferences are used to test proposed approaches. Through software simulation, we find that OFFT and HHT can successfully suppress single tone interference. But only HHT method can annihilate FM interference.
Published in:	Proceedings of the 2009 International Technical Meeting of The Institute of Navigation January 26 - 28, 2009 Disney's Paradise Pier Hotel Anaheim, CA
Pages:	180 - 186
Cite this article:	Chen, Wei-Yu, Chang, Fan-Ren, Tsao, Hen-Wai, Mao, Wei-Lung, "Two Approaches for GPS Interference Annihilation," Proceedings of the 2009 International Technical Meeting of The Institute of Navigation, Anaheim, CA, January 2009, pp. 180-186.
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