• Title/Summary/Keyword: 조향각 오차 보정기법

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Steering Angle Error Compensation Algorithm Appropriate for Rapidly Moving Sources (빠른 속도로 기동하는 표적 환경에 적합한 조향각 오차 보정기법)

  • 박규태;박도현;이정훈;이균경
    • The Journal of the Acoustical Society of Korea
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    • v.23 no.3
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    • pp.206-213
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    • 2004
  • This paper presents a steering angle error compensation (SAEC) algorithm that is appropriate for rapidly moving sources. The Proposed algorithm utilizes a modal covariance matrix from multiple frequency components instead of the multiple snapshots in a narrowband SAEC, and estimates the steering error by maximizing the wideband WVDR output power using a first-order Taylor series approximation of the modal steering vector in terms of the steering error. As such, the steering error can be compensated with short observation times. Several simulations using artificial and sea trial data are used to demonstrate the Performance of the proposed algorithm.