一种基于超短基线的声信标定位方法  

A beacon positioning method based on USBL

作　　者：李想 孙大军[1] 张殿伦[1] 郑翠娥[1] 

机构地区：[1]哈尔滨工程大学水声工程学院,哈尔滨150001

出　　处：《高技术通讯》2009年第5期533-537,共5页Chinese High Technology Letters

基　　金：863计划(2006AA09Z218)资助项目

摘　　要：针对在信标工作方式下常规超短基线定位方法因缺乏斜距信息无法对信标进行定位,提出了一种仅用目标方位信息来确定信标位置的方法。通过多次测量得到方位信息,建立了方位信息和目标位置的关系式,利用最小二乘方法获得信标在大地坐标系下的位置。湖试实测数据处理结果表明,在观测次数m较小的情况下得到的结果其定位精度和稳定性虽然不如应答工作方式下的常规超短基线定位方法,但解决了信标工作方式下无法定位的问题。若需提高定位精度,仅要增加观测次数m。In consideration of the problem that working on the beacon mode, an ultra-short baseline system （USBL） can not position the targets for lack of range information, the paper presents a new location method that only uses target bearing information to 10 eate the beacon. The formula between bearing information and target position parameters is given. The least square method is used to obtain beacon position parameters in the geodetic coordinate system through multiple measurements. The results of processing the data from the Songhua Lake measurements indicate that the presented method can overcome the shortcoming of the general methods on the beacon working mode to position the beacon. Although the position precision and the robustness of the proposed method are inferior to the general methods on the responder working method when measurements number m is small, but it can solve the positioning problem on the beacon working node. With the increase of m, the position precision will be improved.

关 键 词：超短基线(USBL) 定位 信标 

分 类 号：TB52[理学—物理]