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基于波导不变量的双线谱测距多值性机理研究
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摘要
结合波导不变量的概念,推导了双线谱声强间的理论关系式并应用到线谱声源测距。解释了双线谱测距存在多值性的原因,给出多值解与两线谱的频率、波导不变量β以及简正波的干涉周期的理论关系。通过数值仿真和海试实验验证了物理解释的正确性。
The equation of intensity of two tonal noises derived by using the concept of waveguide invariant is used to estimate the range. The reason of multivalued solution of passive ranging using two tonal noises and the relationship between the multivalued solution and the frequencies, waveguide invariant, interference span of the normal mode are given. The correctness of the interpretation has been verified by simulation and experiment.
引文
[1]Chuprov S D,Mal’tsev N E.An invariant of the spatial-frequency interference pattern of the acoustic field in a layered ocean[J].Doklady Akademii Nauk SSSR(Proc.of the Russian Academy of Sciences),1981,257:474-479.
    [2]K.L.Cockrell,H.Schmidt.Robust passive range estimation using the waveguide invariant[J].J.Acoust.Soc.Am.,2010,127(5):2780-2789.
    [3]余赟,惠俊英,赵安邦,林芳.波导不变量及双阵(元)被动测距方法研究[J].兵工学报,2011,32(3):274-280.
    [4]王文博,黄勇,李淑秋.单水听器波导不变量被动测距[J].应用声学,2014,33(5):391-396.
    [5]吴国清,李靖,陈耀明.舰船噪声识别(l)-总体框架线谱分析和提取[J].声学学报,1998,23(5):394-400.
    [6]G.A.Grachev.Theory of acoustic field invariants in layered waveguides[J].Acoust.Phys.,1993,39(1):33-35
    [7]高大治,翟林,王好忠,高博,王宁.应用波导不变量概念的线谱声源测距方法[J].声学学报,2016(已投).

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