本文研究基于海底线列阵的水下目标高精度测向方法，仿真分析线列阵的MVDR近场高精度测向性能；重点研究了128元海底光纤水听器阵的海上实际测向性能。在完成阵元位置标校的基础上，分析不同方位目标的测向误差。试验结果与仿真结果基本相符，在距离5 km以内、声源级119 dB条件下，测向误差小于0.5°。研究结果对于高精度测向方法在海底阵中走向应用奠定了良好的基础。
Method of high precision azimuth estimation for underwater target based on submarine linear array is researched. Performance of beamforming technology for MVDR is simulated. The performance test of linear array of 128 element on the sea is studied. After position calibration test of array, error analysis of azimuth estimation at different direction is completed. The test and simulated results match very well. When the source level is 119 dB, and distance below 5 km, then error of azimuth is less than 0.5°. The results of research implied a great future for application of submarine linear array.
2020,42(10): 171-174 收稿日期：2019-03-28
DOI：10.3404/j.issn.1672-7649.2020.10.033
分类号：TB56
作者简介：彭水(1985-)，男，博士研究生，工程师，主要研究方向为水声信号处理
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