一种水下被动目标运动分析与仿真

文章讨论了一种水下运动的目标和观测平台在不同平面的三维情形下，被动目标运动分析与仿真问题，文中从声呐测量的方位角、爷角和频率的数据入手，采用伪线性估计、最大似然估计两种不同的方法，对水下被动TMA问题进行了研究，并分析了两种不同方法的状态参数估计的误差特性。仿真结果表明：由于增加了观测的信息量，上述方法均能得到较好的参数估计结果，且伪线性估计方差向CRLB界接近。上述方法可推广到目标和观测平台处于同一平面的二维情形。

Simulation and study of one underwater passive target motion analysis

The problem of underwater passive TMA is discussed in this paper by methods of PLE(pseudo-linear estimation)and MLE(maximum likelihood estimation)using azimuths?elevation and frequency which gained from sonar.We assumed in the paper that source and observer move in two different horizontal planes in oceanic environment.Analysis of the performance demonstrates that both methods are effective to TMA in such circumstance by using information from three aspects.It shows that the nature of performance is also improved by the computer simulink.