• Title/Summary/Keyword: accumulative batch estimation

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Study on Bearing and Frequency Target Motion Analysis for Passive Line Array SONAR Using Accumulative Batch Estimation (누적 일괄추정 기법을 이용한 수동 선배열 소나 방위 주파수 - 표적기동분석 연구)

  • Kim, In-Soo
    • Journal of Institute of Control, Robotics and Systems
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    • v.22 no.10
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    • pp.788-796
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    • 2016
  • Bearing and frequency measurements of TMA (Target Motion Analysis) in passive line array SONAR have lower bearing rate and frequency doppler, and are not detected or tracked continuously because of various ocean environments. This is a main reason to effect the TMA performance and it takes a long time to get TMA solutions. We propose the bearing and frequency TMA(BFTMA) using accumulative batch estimation to solve the TMA problem of line array passive SONAR. The accumulative batch estimation structure is based on MLE (Maximum Likelihood Estimation) but used accumulative measurements. The accumulative batch estimation is applied for the BFTMA with nonlinear Kalman filter to estimate the target range, speed and course. Simulation and sea data analysis were carried out to verify the performance and applicability of the proposed techniques.