Interference Excision of GPS Received Signal in Complex Environment

Abstract:

Anti-jamming of GPS receiver is an important problem in navigation war, and this topic has been well researched recently. However, anti-jamming in the complex receiving environment has not been considered in the most of the researches. To solve this problem a cascade anti-jamming method is proposed in this paper. In this scheme, each channel of the received signal vector is processed by utilizing a method based on STFT, after the signal in each channel passed through the processor, a spatial processing has been employed to, suppress the reserved interferences. The results of simulations show that, it can be seen from the time-frequency spectrum before and after the first step processing that the single-tone and non-stationary interferences have been mitigated, and it demonstrates that the performance of the ideal classic Weiner filter can be achieved in the proposed method.

• Periodical: Advanced Materials Research (Volumes 760-762)
• Pages: 350-354
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.760-762.350
• Online since: September 2013
• Authors: Zhu Zhou, Shu Jun Lu, Er Yang Zhang, Yao Min Li
• Keywords: Cascaded, GPS, Rayleigh Distribution, STFT

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