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Robust adaptive matched field processing with environmental uncertainty 被引量:9

Robust adaptive matched field processing with environmental uncertainty
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摘要 The main challenges on detection and localization of quiet targets in littoral regions for passive sonar are the complicated acoustic propagation and the prevalence of loud ship interferences on the surface. Adaptive matched field processing can provide the ability to null surface interferences, but the mismatch between the computed and actual array steering vectors due to environment uncertainty, and the motion of both targets and interferences can result in loss of array gain significantly. To address the problem of environmental mismatch and target motion, a robust motion compensation algorithm and a system scheme for adaptive matched field processing have been developed. Both Numerical simulation and analysis of experimental data demonstrates that the robust AMFP scheme could suppress surface loud interferences and improve the detection performance for underwater weak moving targets in complex shallow water. The main challenges on detection and localization of quiet targets in littoral regions for passive sonar are the complicated acoustic propagation and the prevalence of loud ship interferences on the surface. Adaptive matched field processing can provide the ability to null surface interferences, but the mismatch between the computed and actual array steering vectors due to environment uncertainty, and the motion of both targets and interferences can result in loss of array gain significantly. To address the problem of environmental mismatch and target motion, a robust motion compensation algorithm and a system scheme for adaptive matched field processing have been developed. Both Numerical simulation and analysis of experimental data demonstrates that the robust AMFP scheme could suppress surface loud interferences and improve the detection performance for underwater weak moving targets in complex shallow water.
出处 《Chinese Journal of Acoustics》 2006年第2期159-170,共12页 声学学报(英文版)
基金 This work was supported by the National Natural Science Foundation of China (10304015,60472073) the Foundation from State Key Laboratory of Acoustics
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  • 1陈耀明,高天赋,杨怡青,马忠梅.浅海短垂直阵和稀垂直阵的声源定位性能[J].声学学报,1996,21(6):912-921. 被引量:6
  • 2马力.浅海中水平阵的匹配定位[J].声学学报,1996,21(4):457-463. 被引量:2
  • 3高天赋,陈耀明,杨怡青.短垂直阵简正波匹配的声源定位[J].声学学报,1996,21(4):493-505. 被引量:15
  • 4尚尔昌 高天赋.过滤简正波的若干理论问题[J].海洋学报,1986,8(3):375-386.
  • 5杨怡青.短垂直阵简正波分解新方法的研究及其在声源定位中的应用.声学所硕士论文[M].,1994..
  • 6Yoo K, Yang T C. Broadband source localization in shallow water in the presence of internal vcaves. J Acoust Soc Am, 199; 106(6): 3255-3269.
  • 7Fawcett J A, Yeremy M L, Chapman N R. Matched-field source localization in a range-dependent environment. J Acoust Soc Am, 1996; 99(1): 272-282.
  • 8Del Balzo D R, Feuillade G, Rowe M M. Effects of waterdepth mismatch on matched-field localization in shallow water. J Acoust Soc Am, 1988; 83(6): 2180-2185.
  • 9高天赋 陈耀明 等.一种简正波分解快速迭代新方法.93年全国水声学术会议[M].,1993..
  • 10Yang T C,J Acoust Soc Am,1987年,82卷,1736页

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