基于方位/多径时延的水下目标运动参数估计

Estimation of Underwater Target Motion Parameters Based on Bearing/Multipath Time Delay

摘要:

讨论了基于方位角、俯仰角及多径时延 TMA 的水下目标运动参数估计方法。采用声基阵测量水下运动目标相对于观测平台的方位角、俯仰角，并测量水下目标的一次水面反射相对于直达波的多径时延差， 根据水下目标方位角、俯仰角与多径时延差的变化，通过目标运动分析(TMA)方法预测目标的航迹、航速及航向，为攻击水下目标提供决策信息。计算机仿真验证了方法的可行性。

关键词:多径时延 TMA;水下目标;运动参数估计

Abstract:

The estimation of underwater target motion parameters with bearing，pitch and multipath time delay target motion analysis is studied in this paper. Firstly，the bearing and pitch of underwater moving target relative to observation platform is detected by acoustic array，and the multipath time delay of the surface reflection relative to the direct wave is measured. Secondly，the target motion analysis(TMA)method is adopted to predict the target’s track，speed and heading based on the bearing，pitch and multipath time delay variation of the underwater moving target. Finally，it provides decision information for attacking underwater moving target. The feasibility of this method has been verified by computer simulation.

Key words:multipath time delay target motion analysis;underwater target;estimation of motion parameters