标矢量水听器阵列的定向性能对比研究  

Scalar and Vector Hydrophone Array's Directional Performance Comparison Research

作　　者：陈桂英[1] 刘慧敏[2] 邢丽萍[3] 张国军[1] 张文栋[1] 

机构地区：[1]中北大学仪器科学与动态测试教育部重点实验室电子测试技术重点实验室,山西太原030051 [2]北京航天控制仪器研究所,北京100854 [3]北方自动控制技术研究所,山西太原030006

出　　处：《仪表技术与传感器》2014年第4期91-93,97,共4页Instrument Technique and Sensor

基　　金：国家863项目(2011AA040404)

摘　　要：随着信号频率的不断降低,标量水听器阵列在保持一定增益、束宽的条件下,阵列孔径越来越大;而且,标量水听器阵列的方位分辨存在左右舷模糊的问题。而矢量水听器阵列能够解决上述问题。文中采用三元均匀线阵进行实验,分别从阵列单频信号定向、阵列增益和阵列的静、动态目标方位历程估计三个方面对标量水听器阵列和矢量水听器阵列的定向性能进行了比较。实验结果表明:矢量水听器阵列的灵敏度更高,定向和定位更精确,能够克服左右舷模糊问题,能够获得更高的信噪比,不仅能对静态目标进行方位估计,而且还能对动态目标进行方位估计,表明矢量水听器阵列在提取信号方面具有更大的优势。With the frequency of the signal decreasing, under the condition of maintaining a certain gain and beam width, sca- lar hydrophone array aperture becomes larger and larger. Moreover, the scalar hydrophone array azimuth resolution exist starboard ambiguity problems. However, vector hydrophone array can solve the above problems. From the three aspects of array single-fre- quency signals directed, the array gain and the array of static and dynamic target orientation course estimated, this paper used three basic ULA to experiment which compared scalar hydrophone with vector hydrophone array＇s directional performance. The experi- mental results show that：vector hydrophone array has higher sensitivity, orientation and positioning is more accurate which is able to overcome the starboard ambiguity and obtain a higher signal-to-noise ratio and is not only for static targets DOA estimation, but also for dynamic target orientation estimates. In the aspect of extracting the signal,it indicates that the vector hydrophone arrays have a greater advantage.

关 键 词：标量水听器阵列 矢量水听器阵列 信噪比 定向 方位估计 

分 类 号：TB565[交通运输工程—水声工程]