基于聲強(qiáng)向量法的體積目標(biāo)定向和縮比實(shí)驗(yàn)研究
Study on bearing and scaledown experiment of volume target based on acoustic intensity vector
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摘要: 該文提出和研究了利用小型的菱形聲強(qiáng)向量陣進(jìn)行艦船目標(biāo)三亮點(diǎn)部位的定向和定位。仿真結(jié)果表明了所用方法的正確性。在半消聲室中應(yīng)用自行設(shè)計(jì)的一套實(shí)驗(yàn)裝置對(duì)體積目標(biāo)進(jìn)行了縮比定向?qū)嶒?yàn),實(shí)驗(yàn)結(jié)果與仿真結(jié)果是一致的。
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關(guān)鍵詞:
- 聲強(qiáng)向量; 體積目標(biāo)定向; 縮比實(shí)驗(yàn)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. -
劉勛,相敬林等,作為體積目標(biāo)的船舶聲輻射縱向分布特性的研究,西北工業(yè)大學(xué)學(xué)報(bào),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]孫仲康,等,單多基地有源無源定位技術(shù),北京,國(guó)防工業(yè)出版社,1996,5,24-37.[6]陳繼康,用簡(jiǎn)易聲強(qiáng)計(jì)測(cè)量聲強(qiáng),聲學(xué)學(xué)報(bào),1983,8(4),250-254[7]甘長(zhǎng)勝,陳心強(qiáng),李登嘯,FFT分析儀-微機(jī)聲強(qiáng)測(cè)量系統(tǒng)及其應(yīng)用,應(yīng)用聲學(xué),1983,8(5),4-15[8]劉勛,體積目標(biāo)的被動(dòng)聲定向方法和尺度估計(jì)研究,[博士學(xué)位論文],西安,西北工業(yè)大學(xué),2000. -
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