• Title/Summary/Keyword: Linear clipper-Gaussian Filter

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A Code Tracking Circuit Using a Linear Clipper-Gaussian Filter As a Countermeasure against Follow Jamming in FHSS Systems (FHSS 시스템에서 추적 재머에 대항하는 선형 제한-가우시안 필터를 이용한 코드 추적 회로)

  • Koh, Dong-Hwan;Kim, Young-Je;Kim, Whan-Woo;Eun, Chang-Soo;Kim, Yong-Tae
    • Journal of the Institute of Electronics Engineers of Korea TC
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    • v.46 no.2
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    • pp.152-161
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    • 2009
  • As follow jamming signals in a FHSS system cause malfuctioning in the code tracking circuits using early-late gates, we need a code tracking circuit that is robust against the follow jamming signals. In this paper, we propose a code tracking circuit using a linear clipper-Gaussian filter algorithm to remedy the malfunctioning due to the follow jamming signals in FHSS systems. We investigate the mechanism of the malfunctioning of the code tracking circuit and verify that the proposed linear clipper-Gaussian filter metigates the problem through mathematical analysis and computer simulations.