摘要
针对水下近场预警问题,本文提出利用任意阵型的矢量水听器阵列对近场小目标声源定位。本文首先详细推导了平面矢量阵的近场测量模型,然后介绍了矢量阵常规波束形成和MVDR算法,最后通过仿真和实验进行验证算法的性能。结果表明矢量阵MVDR具有更高的目标分辨率,RMSE随SNR的增大误差不断减小,适合于水下近场区域预警防御。
Aiming at the near field warning problem of underwater vehicle, in this paper, vector hydrophone array with arbitrary formation is used to locate the small target in near field. In this paper, firstly, the near field measurement model of plane vector array is derived detailedly. Then, introduces the conventional beamforming and MVDR algorithm based on vector array. Finally, the performance of the algorithm is verified by simulation and measured data. The results show that the vector MVDR has higher target resolution, and the error decreases with the increase of SNR. It is more suitable for underwater near field regional warning.
作者
姬庆
程锦房
肖大为
JI Qing;CHENG Jin-fang;XIAO Da-wei(Department of Weaponry Engineering, Naval University of Engineering, Wuhan 430033, Chin)
出处
《舰船科学技术》
北大核心
2018年第4期105-109,共5页
Ship Science and Technology
基金
"十三五"国防预研资助项目(3020603020404
3020603020302)
关键词
水下预警
近场波束形成
MVDR
近场声源
矢量阵列
underwater warning
near field beamforming
MVDR
near field acoustic source
vector array
