主、被动拖曳线列阵远程目标定位
doi: 10.3724/SP.J.1146.2005.00787
Long Distance Source Localization with Active and Passive Towed Line Array
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摘要: 该文讨论了主、被动拖曳线列阵的远程定位问题。首先得到了主、被动拖曳线列阵接收的散射声场方程，利用简正波滤波新方法，通过短线阵的水平移动，实现远程目标方位、深度及距离的定位。数值仿真结果表明，通过阵列的移动，可以合成大的孔径，提高目标的方位、距离估计精度。对主、被动拖曳线列阵，利用简正波滤波方法可以很有效地实现对目标方位、深度及距离的估计。Abstract: In this paper, a new technique about long distance source localization with active and passive towed line array is presented. At first, a acoustic scattering field receiving equation for active and passive line array is derived. Then, this new method is described in detail that obtains a long distant 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 active and passive line array can realize effectively long distant source localization by normal-mode filtering method.
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