一种基于互谱法的鱼雷末弹道定位方法  

A Location Method of Torpedo Terminal Trajectory Based on Cross Spectrum Method

作　　者：朱峰 朱元林[1] 刘松海[1] ZHU Feng;ZHU Yuan-lin;LIU Song-hai(91388^th Unit, The People’s Liberation Army of China, Zhanjiang 524022, China)

机构地区：[1]中国人民解放军91388部队

出　　处：《水下无人系统学报》2019年第1期93-96,共4页Journal of Unmanned Undersea Systems

摘　　要：为提高攻潜鱼雷末弹道测量系统的被动定位精度,文中提出了一种基于短时互谱法的攻潜鱼雷末弹道被动定位方法,介绍了运用该方法建立的测量系统,给出了目标的被动定位算法,在测量区域内对测角精度、噪声影响以及典型轨迹进行仿真分析。仿真结果表明,在信噪比为10 dB的条件下,采用文中的定位方法,当目标位于距测量子阵80 m,角度为±40°区域内的弧线上,测向精度提高0.15°,典型航迹绝对误差普遍减小0.4 m。文中所做研究可为考核鱼雷效能评估提供参考。A passive location method based on short-time cross spectrum method is proposed to improve the passive location accuracy of a torpedo terminal trajectory measurement system. The measurement system established according to this method is introduced, the passive location algorithm of a target is given. The angle measurement accuracy, the noise influence and the typical trajectory are simulated and analyzed in the measuring area. Simulation results show that for the signal-to-noise ratio(SNR) of 10 dB, when the target is on the arc of an ±40° region and the distance between the arc and the measuring subarray is 80 m, the direction finding accuracy of the proposed location method is improved by 0.15°, and the absolute error of typical trajectory is generally reduced by 0.4 m. This research may provide a reference for evaluating torpedo effectiveness.

关 键 词：鱼雷 末弹道 互谱法 被动定位 

分 类 号：TJ630.1[兵器科学与技术—武器系统与运用工程] TB566[交通运输工程—水声工程]