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

The Korea Institute of Military Science and Technology (한국군사과학기술학회)
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Interference Analysis Among Waveforms and Modulation Methods of Concurrently Operated Pulse Doppler Radars

단일 플랫폼에서 동시 운용되는 펄스 도플러 레이다의 파형 및 변조 방식간의 간섭 분석

  • 김은희 (세종대학교 국방시스템공학과) ;
  • 유성현 (LIG넥스원(주) 레이다연구소) ;
  • 김한생 (LIG넥스원(주) 레이다연구소) ;
  • 이기원 (LIG넥스원(주) 레이다연구소)
  • Received : 2021.08.11
  • Accepted : 2021.11.19
  • Published : 2022.02.05
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Abstract

As the application field of radar is expanded and the bandwidth increases, the number of radar sensors operating at the same frequency is continuously increasing. In this paper, we propose a method of analyzing interference when two pulse doppler radars are operated at the same frequency with different waveform which are designed independently. In addition, we show that even for a previously designed LFM waveforms, the interference can be suppressed without affecting the performance by changing the sign of the frequency slope by increasing/decreasing, or by modulating the pulses by the different codes. The interference suppression by different slopes is more effective for similar waveform and the suppression by the codes increases as the number of pulses increases. We expect this result can be extended to the cases where multiple radars are operated at the same frequency.

Keywords

Acknowledgement

본 연구는 국방과학연구소 미래도전사업 지원으로 수행되었습니다.

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