水下目标深度测量误差源分析

Analysis of error sources for underwater target depth measure

首先研究了在深海环境下,采用基于三阵元垂直线列阵的水声探测系统进行水下目标深度测量的基本原理。然后从随机误差和阵元配置偏差的角度,对水下目标深度测量的误差源进行了理论分析,并推导了相关公式。此外,对于相干多途水声信道干扰给水下目标深度测量精度的影响,也作了初步的理论分析。通过仿真实验,总结出各误差源对水下目标深度测量精度影响的规律,研究结果为进一步开展水下目标深度测量研究、提高测量精度奠定了基础。

Firstly, the elementary principle of underwater target depth measure is studied, which is supported by underwater acoustic detection system of vertical linear array and is conducted in deep sea. Then, error sources of underwater target depth measure 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 formulate are deduced. After simulation experiments, it is concluded that how these error sources impact accuracy of underwater target depth measure, which is the basis of further research for underwater target depth measure and improvement of accuracy of its.