基于声强向量法的体积目标定向和缩比实验研究
Study on bearing and scaledown experiment of volume target based on acoustic intensity vector
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摘要: 该文提出和研究了利用小型的菱形声强向量阵进行舰船目标三亮点部位的定向和定位。仿真结果表明了所用方法的正确性。在半消声室中应用自行设计的一套实验装置对体积目标进行了缩比定向实验,实验结果与仿真结果是一致的。
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关键词:
- 声强向量; 体积目标定向; 缩比实验研究
Abstract: In this paper, the method to determine the bearings and ranges to three highlight sections of a ship is proposed and studied by means of a small rhombic acoustic intensity array. The simulation results show that the method is correct. An experimental facility is designed and manufactured. The scaledown experiment determining the bearings and ranges to three highlight sections of a ship is completed in serni-anechoic room. The experimental results are consistent with simulation results. -
刘勋,相敬林等,作为体积目标的船舶声辐射纵向分布特性的研究,西北工业大学学报,2000,18(3),409-412[2]R.Hickling,W.Wei,Finding the direction of a sound source using a vector sound-intensity probe,J.Acoust.Soc.Am.,1993,94(5),2408-2412.[3]F.J.Fahy,Measurement of acoustic intensity using the cross-spectral density of two microphone signals.J.Acoust.Soc.Am.,1977,62(2),1057-1059.[4]J.Y.Chung,Cross-spectral method of measuring acoustic intensity without error caused by instrument phase mismatch,J.Acoust.Soc.Am.,1978,64(3),1613-1616.[5]孙仲康,等,单多基地有源无源定位技术,北京,国防工业出版社,1996,5,24-37.[6]陈继康,用简易声强计测量声强,声学学报,1983,8(4),250-254[7]甘长胜,陈心强,李登啸,FFT分析仪-微机声强测量系统及其应用,应用声学,1983,8(5),4-15[8]刘勋,体积目标的被动声定向方法和尺度估计研究,[博士学位论文],西安,西北工业大学,2000. -
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