Journal of the Institute of Electronics and Information Engineers (전자공학회논문지)

The Institute of Electronics and Information Engineers (대한전자공학회)
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A Detection Algorithm for Pulse Repetition Interval Sequence of Radar Signals based on Finite State Machine

유한 상태 머신 기반 레이더 신호의 펄스 반복 주기 검출 알고리즘

  • Park, Sang-Hwan (Dept. of Computer Science, Chungbuk National University) ;
  • Ju, Young-Kwan (Dept. of Computer Science, Chungbuk National University) ;
  • Kim, Kwan-Tae (Dept. of Computer Science, Chungbuk National University) ;
  • Jeon, Joongnam (Dept. of Computer Science, Chungbuk National University)
  • 박상환 (충북대학교 컴퓨터과학과) ;
  • 주영관 (충북대학교 컴퓨터과학과) ;
  • 김관태 (충북대학교 컴퓨터과학과) ;
  • 전중남 (충북대학교 컴퓨터과학과)
  • Received : 2016.04.05
  • Accepted : 2016.07.04
  • Published : 2016.07.25
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Abstract

Typically, radar systems change the pulse repetition interval of their modulated signal in order to avoid detection. On the other hand the radar-signal detection system tries to detect the modulation pattern. The histogram or auto-correlation methods are usually used to detect the PRI pattern of the radar signal. However these methods tend to lost the sequence information of the PRI pulses. This paper proposes a PRI-sequence detection algorithm based on the finite-state machine that could detect not only the PRI pattern but also their sequence.

레이더 시스템은 방사 신호의 탐지를 회피하기 위해 펄스 반복주기(PRI, Pulse Repetition Interval)와 PRI 패턴을 변조하고 있으며, 반대로 레이더 신호 탐지 시스템은 다양한 노력을 기울여 PRI와 PRI 패턴을 감지하려고 한다. 일반적으로 레이더 신호의 PRI 패턴을 검출하기 위해 펄스열의 도착시각에 대한 히스토그램 또는 자기 상관관계 기법으로 펄스 변조를 검출하고 있다. 본 논문에서는 유한 상태 머신 개념을 도입하여 펄스 반복주기를 검출하는 알고리즘을 제안한다. 이 알고리즘은 PRI 순서와 PRI 패턴을 찾을 수 있는 특징이 있다.

Keywords

References

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