十七元十字阵水下合作目标远程定位方法

A remote positioning method of underwater cooperative targets for seventeen-hydrophone cross array

结合水声对抗的实际需求,针对海洋环境下目标定位困难且定位距离有限的问题,利用多水听器十字阵接收信号,并对信号进行加权来提高接收信号信噪比,以达到定位水下合作目标的目的。具体通过波束形成和信号相关,依据目标方位与波束形成方位一致时能量最大的原则,实现对远距离水下合作目标方位和距离的估计,并通过仿真和试验验证了所提定位方法的有效性。

Taking into account the difficulty of localization and its limited distance in marine environment, a seventeen-hydrophone cross array, which can improve the signal noise ratio of received signals by weighting all the channels, is designed to estimate the position of the underwater cooperative target. According to the principle of maximum energy when the orientation of target and beamforming is consistent, the target position is estimated by beamforming and signal-correlation. Finally, some simulation results and analysis of the method as well as experiment results are presented to verify the validity of the method.