摘要
针对水下目标定位时,单平面定位阵存在随俯仰角变化定向精度变化大的问题,提出了水下五基元空间阵超短基线定位方法。该方法利用五基元空间阵中每个正交三元阵分别确定目标方位,并将各正交三元阵定位结果互相修正作为目标的最后定位结果。仿真分析表明俯仰角在80°-100°范围内,采用五基元空间阵超短基线定位方法,z坐标的定位精度比单基阵定位时明显改善,z坐标的相对误差没有出现突变的现象,目标的定位精度相对提高。
Based on the orientation variety within wide limits as pitch angle change in single plane for acoustic localization,an approach of ultra-short baseline localization using five-element arrays was proposed.In this method,the every orthogonal ternary array in the five-element space arrayswas used to determine target range, and the localization results of every three orthogonal array element were correctted by each other to get the final positioning result.Simulation results showed that when the pitch angle was between 80deg and 100deg,by u-sing the five-element spatial arrays of ultra-short baseline positioning method,the Z coordinate of the positioning accuracy was improved obviously than that of single array positioning,target localization accuracy was relatively increased.
出处
《探测与控制学报》
CSCD
北大核心
2016年第5期49-51,57,共4页
Journal of Detection & Control
关键词
超短基线
五基元空间阵
俯仰角
ultra-short baseline
five-element arrays
pitch angle
