被動合成孔徑聲吶陣列目標(biāo)遠(yuǎn)程定位
Long Distance Source Localization with Passive Synthetic Aperture Sonar
-
摘要: 該文討論了被動合成孔徑聲吶遠(yuǎn)程定位問題。首先得到了合成孔徑聲吶陣列接收的聲場方程，利用簡正波濾波新方法，通過短線陣的水平移動，實(shí)現(xiàn)遠(yuǎn)程目標(biāo)方位、深度及距離的定位。數(shù)值仿真結(jié)果表明，通過陣列的移動，可以合成大的孔徑，提高目標(biāo)的方位、距離估計精度。對合成孔徑聲吶陣列，利用簡正波濾波方法可以很有效地實(shí)現(xiàn)對目標(biāo)方位、深度及距離的估計。
-
關(guān)鍵詞:
- 被動合成孔徑聲吶;遠(yuǎn)程定位;簡正波濾波
Abstract: In this paper, a new technique about long distance source localization with passive synthetic aperture sonar array is presented. At first, a sound field receiving equation for synthetic aperture sonar is derived. Then, this new method is described in detail that obtains a long distant passive azimuth, range and depth source localization by the normal-mode filter and the large synthetic aperture through horizontal moving of a short line array. The simulated results indicate that the estimation of accuracy in azimuth and range source localization is improved by this method. In addition, it is certificated that the passive synthetic aperture sonar array can realize effectively long distant source localization by normal-mode filtering method. -
Booth N 0, Abawi A T, Schey P W et al.. Detectability oflow-level broad-band signals using adaptive matched-fieldprocessing with vertical aperture arrays. IEEE Journal ofoceanicEngineering, 2000,25(3): 296 - 312.[2]Fawcett J A, Maranda B H. A hybrid target motion analysis1matched-field processing localization method[J].J. Acoust. Soc. Am.1993,94(3):1363-[3]Schmidt H, Kuperman W A. Spectral and modal representationsof the Doppler-shifted field in ocean waveguides[J].J. Acousr. Soc.Am.1994,96(1):386-[4]Harish M, Chouhan, Anand G V. A new technique of acousticmode filtering in shallow sea[J].J. Acoust. Soc. Am.1991, 89(2):735- -
計量
- 文章訪問數(shù): 2985
- HTML全文瀏覽量: 126
- PDF下載量: 873
- 被引次數(shù): 0
下載:
