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A Novel Scheme to Mitigate a GPS L1 C/A Signal Repeat-back Jamming Effect, According to a Code Tracking Bias Estimation, Using Combined Pseudo-random Noise Signals

통합 의사잡음신호 기반 부호추적편이 추정에 따른 GPS L1 C/A 신호의 재방송재밍 영향 완화 기법

  • Yoo, Seungsoo (Division of Electronics Engineering, Konkuk University) ;
  • Yeom, Dong-Jin (Agency for Defense Development) ;
  • Jee, Gyu-In (Division of Electronics Engineering, Konkuk University) ;
  • Kim, Sun Yong (Division of Electronics Engineering, Konkuk University)
  • Received : 2016.07.20
  • Accepted : 2016.08.24
  • Published : 2016.10.01

Abstract

In this paper, a novel scheme with which to mitigate a repeat-back jamming effect is proposed for the GPS L1 coarse/acquisition signal. The proposed scheme estimates the code tracking bias caused by repeat-back jamming signals using a Combined Pseudo-random noise signal. It then mitigates the repeat-back jamming effect by subtracting the estimated code timing on a normal correlation channel from the estimated value. Through a Monte-Carlo simulation, the proposed scheme can diminish the running average of code tracking bias to less than 10% of the bias using the conventional scheme.

Acknowledgement

Supported by : 국방과학연구소, 한국연구재단

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