A Study on Effectiveness Analysis of the GPS Receiver by the Narrowband interference signals

Kim, Jun-O

Journal of the Korea Institute of Military Science and Technology 2004;7(2):48-56.

Jun-O Kim

Agency for Defense Development

협대역 간섭신호에 의한 GPS 수신기 영향 분석

김준오

국방과학연구소

Abstract

This paper presents the GPS receiver's inherent interference effectiveness based on the receiver's internal processing gain. This research is to verify the weakness of the GPS satellite signals and evaluate the receiver's vulnerability in an interference situation. The experiment for the narrow band interference effectiveness for the L1 C/A code GPS receiver has been performed by using the Spirent GSS4765 jamming simulator. After analyzing the experimental result, it is compared with the calculated J/S value of the two different L1 C/A code GPS receivers. By the above result, the narrowband jamming effectiveness of the each jamming source and the jamming margin for the each receiver are to be analyzed in detail. Finally, we could utilize the result to analyze the jamming effectiveness on the GNSS receiver.