Journal of the Korea Institute of Military Science and Technology (한국군사과학기술학회지)

The Korea Institute of Military Science and Technology (한국군사과학기술학회)
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On the Performance of Time-Hopping Systems under Hostile Jamming Environments

다양한 재밍 환경에서 시간도약 시스템 성능 분석

  • Jung, Hyoyoung (School of Electrical Engineering and Computer Science, Gwangju Institute of Science and Technology) ;
  • Lee, Jong-Hwan (The 2nd Research and Development Institute, Agency for Defense Development) ;
  • Kim, Kiseon (School of Electrical Engineering and Computer Science, Gwangju Institute of Science and Technology)
  • 정효영 (광주과학기술원국 전기전자컴퓨터공학) ;
  • 이종환 (국방과학연구소 제2기술연구본부) ;
  • 김기선 (광주과학기술원국 전기전자컴퓨터공학)
  • Received : 2017.05.19
  • Accepted : 2017.12.08
  • Published : 2018.02.01
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Abstract

In this paper, we consider the applicability of time-hopping(TH) systems for anti-jamming(AJ) communication. We first briefly summarize fundamentals of TH systems and several common jamming scenarios that have been considered in the literature. We then analyze the AJ performance of TH systems under those common jamming environments. From our simulation results, we reveal that among narrow band, partial band, broadband, and sweep jamming, partial band and sweep jamming are the best ones from jammer perspective. For the partial band jamming case, we show that the most effective bandwidth ratio and location are 50 % and 2.5-3.5 Ghz, respectively. For the sweep jamming case, we illustrate that the AJ performance of the TH system is enhanced when the sweep duration approaches to the bit duration. In addition, we pointed out that the most efficient jamming bandwidth ratio is 1/2. Finally, our results show that the TH-BPSK system greatly outperforms the TH-PPM counterpart.

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References

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