近海水下目标多水听器阵列协同定位

Cooperative Location of Offshore Underwater Target with Multiple Hydrophone Arrays

针对利用岸基多个水听器阵列对近海水下目标定位问题,提出了一种多阵列协同的综合定位方法。首先,各水听器阵列采用一种基于声场环境的匹配场处理(MFP)方法对同一个目标进行定位,获得目标的距离和深度信息;然后,处理中心根据各阵列节点上报的目标相对距离和深度估计,结合各阵列的地理坐标进行融合处理,最后,得到目标的位置和深度。仿真试验表明,该方法可有效实现对近海水下目标的三维定位,具有实际应用价值。

Aimed at the location problem of the offshore underwater target with multiple shore- based hydrophone arrays, an integrated location method cooperated with multiple arrays is pro-posed. Firstly, the matched field processing （MFP） method based on the acoustic environment is adopted to locate the same target at each hydrophone array, and the distance and the depth of the target are obtained. Then, according to the estimated distance and depth information from each array node, the processing center calculates the fused location and depth of the target associated with the geography coordinate of each array. Simulation results show that the method can realize the three-dimensional location of the offshore underwater target, and has a certain value in the ac-tual applications.