单矢量水听器的高分辨方位估计应用研究

兵工学报 ›› 2011, Vol. 32 ›› Issue (8): 986-990.

单矢量水听器的高分辨方位估计应用研究

梁国龙，张锴，付进，张瑶，李利

(哈尔滨工程大学水声技术重点实验室, 黑龙江哈尔滨 150001)

收稿日期:2010-06-09 修回日期:2010-06-09 上线日期:2019-04-12
通讯作者: 梁国龙 E-mail:liangguolong@hrbeu.edu.cn
作者简介:梁国龙(1964—)男教授，博士生导师
基金资助:
高等学校博士学科点专项科研基金(20102304120030)；黑龙江省自然科学基金（E201024）

Research on High-Resolution Direction-of-Arrival Estimation Based on An Acoustic Vector-hydrophone

LIANG Guo-long， ZHANG Kai， FU Jin， ZHANG Yao， LI Li

(Science and Technology on Underwater Acoustic Laboratory Harbin Engineering University, Harbin 150001, Heilongjiang， China)

Received:2010-06-09 Revised:2010-06-09 Online:2019-04-12
Contact: LIANG Guo-long E-mail:liangguolong@hrbeu.edu.cn

摘要/Abstract

摘要： 为了提高单矢量水听器的目标分辨能力，将 MUSIC算法用于单矢量水听器方位估计。根据单矢量水听器的阵列流型特点，将子空间分解理论应用到单矢量水听器方位估计上，实现了单个矢量水听器的高分辨方位估计。根据应用中出现的问题，对算法进行改进。计算机仿真结果表明，在无需知道信号先验信息条件下，该算法依靠单个矢量水听器便可实现窄带信号和宽带信号的高分辨方位估计，而且在足够高的信噪比条件下，能够达到渐进无偏估计。湖试数据的处理结果验证了改进算法的有效性。

关键词: 信息处理技术, 高分辨方位估计, 单矢量水听器, 子空间分解

Abstract: In order to increase the resolving power for only using a single acoustic vector-sensor, the MUSIC algorithm is applied to the DOA (direction of arrival) estimation.Taking into account the characteristic of single coustic vector-sensor, the high-resolution DOA estimation based on subspace decomposing theory is realized. According to the problem apprearing in the application, the improved algorithm is advanced. Simulation indicates that the result using the algorithm achieves the high-resolution DOA estimation whether narrowband or wideband signal with theirs information unknown and obtains the gradually agonic estimation without bias when the SNR (signal-to-noise ratio) is high. The result of processing data testifies to the validity of improved algorithm.

Key words: information processing technique, single vector-hydrophone, high-resolution DOA estimation, subspace decomposition

中图分类号:

TB566

梁国龙，张锴，付进，张瑶，李利. 单矢量水听器的高分辨方位估计应用研究[J]. 兵工学报, 2011, 32(8): 986-990.

LIANG Guo-long， ZHANG Kai， FU Jin， ZHANG Yao， LI Li. Research on High-Resolution Direction-of-Arrival Estimation Based on An Acoustic Vector-hydrophone[J]. Acta Armamentarii, 2011, 32(8): 986-990.

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