时延差双曲面定位方法在鱼雷入水点测量中的应用

摘要

To measure torpedo water-entry point in real time, a localization method of time delay difference and hyperboloid based on multiple array is proposed. This method can measure the geodetic coordinates of a target with the precision of 10 m(standard error) without needing the azimuth of vector. The influence of time measurement error of buoy array on localization precision is discussed, and the result shows that the maximum measurement error in the buoy array is no more than 4 m.This method is verified by sea trial.%针对鱼雷入水点实时测量无法获取的问题, 给出了一种基于多个阵元联合定位的时延差双曲面定位方法, 该方法可以测量目标大地坐标并达到10 m的定位精度(标准误差)而无需矢量的方位数据,同时讨论了浮标阵的测时误差对定位精度的影响,结果表明,浮标阵内测量误差最大不超过4 m.海上试验验证了该方法的有效性.