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http://dx.doi.org/10.12673/jant.2017.21.3.243

The Spectral Domain K-median Threshold Filtering Method for the Dynamic GPS Interference Excision  

Kim, Jun O (Agency for Defence Development, Navigation Division)
Lee, Sang Jeong (Department of Electronics Engineering, Chungnam National University)
Publication Information
Journal of Advanced Navigation Technology / v.21, no.3, 2017 , pp. 243-250 More about this Journal
Abstract
GPS(Global Positioning System) signal structure uses spread spectrum and the received power is relatively lower than the receiver noise figure. Therefore, it is vulnerable to the RF interferences and it could restrict on the safety navigation. The objective of this paper is to research on the spectral domain GPS interference rejection algorithm using proposed K-median filtering threshold setting method. In the performance test, the proposed algorithm has a relatively higher ISR(interference to signal ratio) compared with the conventional temporal domain technique in case of time variant interference signals.
Keywords
GPS; Spectral domain; Interference suppression; K-median; Excision;
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