Journal of the Institute of Electronics Engineers of Korea SC (전자공학회논문지SC)

The Institute of Electronics and Information Engineers (대한전자공학회)
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One-Step-Ahead Control of Waveform and Detection Threshold for Optimal Target Tracking in Clutter

클러터 환경에서 최적의 표적 추적을 위한 파형 파라미터와 검출문턱 값의 One-Step-Ahead 제어

  • Shin Han-Seop (Space Center, Korea Aerospace Research Institute) ;
  • Hong Sun-Mog (School of Electrical Engineering & Computer Science, Kyungpook National University)
  • 신한섭 (한국항공우주연구원 우주센터) ;
  • 홍순목 (경북대학교 전자전기컴퓨터학부)
  • Published : 2006.01.01
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Abstract

In this paper, we consider one-step-ahead control of waveform parameters (pulse amplitudes and lengths, and FM sweep rate) as well as detection thresholds for optimal range and range-rate tracking in clutter. The optimal control of the combined parameter set minimizes a tracking performance index under a set of parameter constraints. The performance index includes the probability of track loss and a function of estimation error covariances. The track loss probability and the error covariance are predicted using a hybrid conditional average algorithm The effect of the false alarms and clutter interference is taken into account in the prediction. Tracking performance of the one-step-ahead control is presented for several examples and compared with a control strategy heuristically derived from a finite horizon optimization.

이 논문에서는 클러터 환경에서 최적의 거리와 거리방향 속도 추적을 위한 검출문턱값과 파형 파라미터의 one-step-ahead 제어를 제시하였다. 파형 파라미터의 최적 제어는 파형 파라미터에 대한 제약 조건이 있는 상황에서 추적 성능지수를 최소화하는 것이다. 성능지수는 항적분실확률과 추정오차 공분산행렬의 함수로 표현하였다. 항적분실확률과 오차 공분산행렬은 하이브리드 알고리듬을 이용하여 얻었다. 거짓 검출과 클러터 간섭의 영향은 이 성능 예측 알고리듬에서 함께 고려되었다. 여기서 제안한 one-step-ahead 제어의 추적 성능을 여러 가지 수치실험을 통해 확인하였고, 이 제어 방법은 유한 구간의 최적화 결과로부터 얻어진 경험적인 방법이다.

Keywords

References

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