基于单阵元垂向变深的目标被动定位方法  

Target passive location based on vertical depth change of single array element

作　　者：杨刚[1] 韩树平[1] 柳文明 徐景峰[1] Yang Gang;Han Shuping;Liu Wenming;Xu Jingfeng(Navy Submarine Academy, Qingdao 266042, chin)

机构地区：[1]海军潜艇学院

出　　处：《仪器仪表学报》2018年第3期231-241,共11页Chinese Journal of Scientific Instrument

基　　金：中国博士后基金(2014M552658)项目资助

摘　　要：提出一种基于单阵元垂向变深的目标被动定位方法,为提升潜航器被动声纳的水下探测能力提供了一种新思路。针对线谱目标,通过单阵元的垂直变深采样,获得垂向空间目标声场的非时间同步数据,利用给出的补偿矩阵,对数据的相位进行补偿,进而等效为以单阵元不同变深点为阵元的垂直阵列数据,然后将补偿后数据的测量场与合成阵元位置处计算的拷贝场求匹配,实现目标的深度、距离定位。数值仿真表明,通过单阵元垂向变深采样的方式,结合一定的算法补偿可以在垂直方向合成一定孔径的垂直阵列,实现目标深度、距离的估计。A target passive locating method for the underwater acoustic target passive location is proposed based on the vertical depth change of single array element.For line spectrum target,the asynchronous time data of the vertical spatial target acoustic field is accquired by using the vertical depth sampling of a single sonar array.Then,the phase of the data is compensated by the obtained compensation matrix.After the compensation,the data can be equivalent real vertical array data.The target location can be calculated by using the measure field of the equivalent vertical array and matched field processing.The simulation indicates that correct localization of target can be achieved by the vertical depth sampling of a single sonar array.

关 键 词：单阵元 垂向变深 合成孔径 匹配场 

分 类 号：TN911.7[电子电信—通信与信息系统] TH766[电子电信—信息与通信工程]