矢量垂直阵时反被动定位技术研究  

Research on Time-Reversal Passive Location Technology with Vector Vertical Array

作　　者：李士刚 刘甡 刘立伟 LI Shi-gang;LIU Shen;LIU Li-wei(Naval Military Representative Office of Space System in Shanghai,Shanghai 201109;Shanghai Institute of Aerospace Electronic Technology,Shanghai 201109;Jiangsu Automation Research Institute,Lianyungang 222061,China)

机构地区：[1]海军驻上海地区航天系统军代室,上海201109 [2]上海航天电子技术研究所,上海201109 [3]江苏自动化研究所,江苏连云港222061

出　　处：《指挥控制与仿真》2018年第2期110-114,共5页Command Control & Simulation

摘　　要：为改善声压垂直阵时反被动定位性能,优化水听器阵列结构,对矢量水听器垂直阵时反被动定位技术进行研究。在声压阵时反处理方法基础上,提出了三种矢量垂直阵时反被动定位方法;通过仿真比较了矢量垂直阵与声压垂直阵时反定位的性能,分析了信噪比、阵元个数、阵元间距等对矢量垂直阵时反被动定位算法性能的影响。仿真结果表明:当检测概率为0.8时,矢量垂直阵检测阈要优于声压垂直阵1d B-3d B,对2k Hz-4k Hz的宽带信号,按照间距2m的4元等间距矢量阵可取得较好的时反被动定位效果。In order to improve the performance of sound pressure vertical array,optimize the hydrophone array structure,the time-reversal passive location technology with vector vertical array is researched and three methods are given in this paper.We compared the vector vertical array and the sound pressure vertical array in processing gain of TRM through computer simulation,and analyzed the relationship between positioning performance and parameters such as SNR,number of array elements and spacing between elements.The simulation results show that,when the detection probability is 0.8,the detection threshold of vector vertical array is 1dB-3 dB better than that of sound pressure vertical array.For the wideband signal of 2kHz-4kHz,the vector vertical array can obtain better time-reversal passive location effect by using four elements array with 2 meters element equal spacing.

关 键 词：矢量垂直阵 时间反转镜 定位概率 被动定位 

分 类 号：E917[军事] TB565[交通运输工程—水声工程]