多矢量水听器低频近场目标协同定位算法  

Cooperative localization of low-frequency near-field target using multi-vector-hydrophones

作　　者：张超然[1] 程锦房[2] 肖大为[2] 

机构地区：[1]海军装备研究院标准规范研究所,上海200235 [2]海军工程大学兵器工程系,湖北武汉430033

出　　处：《国防科技大学学报》2016年第6期180-185,共6页Journal of National University of Defense Technology

基　　金：国家部委基金资助项目(4010709010201)

摘　　要：针对水下小平台难以实现低频近场目标定位的问题,研究了基于多个矢量水听器的协同定位算法。算法将多个矢量水听器视为不同的观测点,利用矢量水听器阵列流型特点估计出目标相对于不同观测点的方位角,根据这些方位角信息利用正交矢量算法对近场目标进行定位,避免了多维搜索过程,减少了计算量。仿真结果表明,算法能够准确地定位低频近场目标,有效地提高定位精度。Aiming at the problem that the underwater small platform cannot locate the low-frequency near-field target, a cooperative localization algorithm using multiple vector hydrophones was proposed. The hydrophones were regarded as different observation points, and then the azimuth angles of target connected to different observation points were estimated respectively on the basis of the array manifold characteristics of hydrophones. According to these azimuths, the location of near-field target was realized by using the orthogonal vector method. This algorithm avoids the multi-dimensional search process and reduces the calculation. The simulation results show that this algorithm can locate the near-field target accurately and improve the location accuracy effectively.

关 键 词：近场定位 矢量水听器 纯方位估计 正交矢量算法 

分 类 号：TN911.7[电子电信—通信与信息系统]