基于多基阵信息融合的目标定位仿真实验

Simulation experiment studies on long-distance target localization based on information fusion with multi-array

为了有效提高被动自导作用距离和目标参数的估计精度,针对水下航行器的多个基阵,采用信息融合方法,从波形级融合和波束级融合2个方面,对多个基阵的目标被动定位方法进行仿真实验研究,并给出了各种融合方法的统计性能分析。仿真结果表明,多个基阵的信息融合可有效提高目标的定位精度,使低信噪比时的检测能力提高1～3 dB,从而提高被动自导的有效作用距离。

In order to increase the operation distance of passive self-homing and the parameter estimation precision for the target efficiently,the methods of information fusion with multi-array are adopted for the underwater vehicle.From the aspects of waveform level fusion and beam level fusion,simulation experiment studies is carried through the passive localization methods for the target with multi-array.And the statistical performance analyses of different fusion methods are provided.The simulation results show that,the localization precision for the target is improved efficiently with information fusion of multi-array,and the detection capability outperforms from 1 dB to 3 dB.So the efficient operation distance of passive self-homing is enhanced.