基于垂直线列阵的深海被动目标定深误差

Research on Errors for Passive Estimation of Target Depth in Deep Sea based on Vertical Linear Array

首先研究了在深海环境下,采用三阵元垂直线列阵水声探测系统进行被动目标定深的基本原理。然后分别从随机误差、阵元配置偏差和相干多途水声信道干扰的角度,对被动目标定深的误差源进行了理论分析,并推导了相关公式。通过仿真实验,总结出各误差源对被动目标定深精度影响的规律,为进一步开展被动目标定深研究、提高被动目标定深精度奠定了基础。

Firstly, the elementary principle of target passive estimation of depth is studied, which is supported by underwater acoustic detection system of vertical linear array and is conducted in deep sea. Then, error sources of target passive estimation of depth are analysed theoretically from points of view of random error, deployment deviation of vertical linear array and underwater acoustic channels of correlative multiple tracks, and correlative formulae are deduced. After simulation experiments, it is concluded that how these error sources impact accuracy of target passive estimation of depth, which is the basis of further research for target passive estimation of depth and improvement of accuracy of target passive estimation of depth.