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

The Institute of Electronics and Information Engineers (대한전자공학회)
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Estimation Method of Single Stagger PRI and Future TOA for Active Cancellation

단일 스태거 PRI의 추정 및 능동 상쇄를 위한 예상 도착 시간 추정 기법

  • Lim, Seongmok (Dept. of Electrical and Electronic Engineering, Yonsei University) ;
  • Sim, Dongkyu (Dept. of Electrical and Electronic Engineering, Yonsei University) ;
  • Lee, Chungyong (Dept. of Electrical and Electronic Engineering, Yonsei University)
  • 임성목 (연세대학교 전기전자공학부) ;
  • 심동규 (연세대학교 전기전자공학부) ;
  • 이충용 (연세대학교 전기전자공학부)
  • Received : 2013.08.26
  • Published : 2014.03.25
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Abstract

Through applying hostile radar signals that use stagger PRI to PRI transform in real time, we can analyze stagger PRI and calculate the future TOA for active cancellation by using measured TOA and estimated PRI. We shows the effect of the errors that are contained in PRI and measured TOA. Then, it will suggest the technique to improve the accuracy of estimated PRI and the TOA averaging method for reducing the effect of measured TOA error. Finally, we will show that accuracy of estimated future TOA that is calculated by proposed scheme is higher than that of future TOA that is simply calculated with TDOA and newest TOA through comparing RMSE performance.

스태거 펄스 반복 주기 (pulse repetition interval, PRI)로 구성된 위협 레이더 신호에 대하여 실시간으로 PRI transform을 적용하여 스태거 PRI를 분석하고 측정 TOA와 추정된 PRI를 이용하여 능동 상쇄에 필요한 미래의 TOA (time of arrival)를 계산한다. 또한, 추정된 PRI와 TOA에 포함되어 있는 오차의 영향을 살펴보고 추정 PRI의 정확도를 향상시키는 기법과 TOA 오차의 영향을 감소시키기 위하여 TOA 평균화 기법을 제안한다. 마지막으로 TDOA와 최근 TOA를 이용하여 단순하게 예측된 미래 TOA와 제안된 방법을 통해 예측된 미래 TOA 간의 RMSE (root mean square error)를 비교하여 제안된 기법의 예측 정확도가 높음을 보인다.

Keywords

References

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