高低四元阵定位算法及其精度分析

Location Algorithm and Precision Analyzing of High-low Quaternion Array

针对智能雷弹被动声探测的对平面阵小仰角时对仰角估计精度低的问题,提出了采用空间高低四元阵,推导了该阵型的基本定位算法,并利用冗余声程差对算法进行了优化,并利用分别适合于低仰角和高仰角的算式进行加权平均,提高了仰角的探测精度,使其更具有实用性。

Aimed at the problem of low elevation angle precision under the condition of plane array and small elevation angle of smart mine＇s passive acoustic detection, high - low quaternion array is brought forward, and the locating algorithm of the array is deduced. The algorithm is optimized by using redundant acoustic distance difference. Detection precision of elevation angle is raised by the weighted average of the formulas adapted to small elevation angle and big elevation angle respectively, which makes the locating algorithm of high - low quaternion array more practicable.