超声速反舰导弹被动声定位算法研究

An Research on Passive Acoustic Location of Supersonic Anti-ship Missile[JZ)][HS)]

摘要:

脱靶量测量对鉴定被试导弹的实际效能具有十分重要的意义；随着反舰导弹武器试验越来越多的在复杂电磁环境下进行,现有雷达体制脱靶量测量系统易受有源和无源电子干扰系统的干扰,测量数据的有效性大幅降低,难以满足试验鉴定需求；由于声学系统不受外界复杂电磁环境的干扰,为此,提出利用声学方法进行脱靶量测量；该方法在建立超声速导弹飞行的锥面方程后,以时间差为观测量,利用最小二乘法进行求解；并建立导弹飞行姿态及速度的搜索空间,基于极大似然估计思想,采用搜索方式,经有效性分析后,解算出反舰导弹攻靶段飞行轨迹的最优解；仿真计算结果表明,当反舰导弹在靶船上方飞过时,绝大部分区域脱靶量解算精度优于2m,满足试验评定要求。

Abstract:

The miss distance measurement is very important for the tested missile to evaluate the actual performance of it. Nowadays, more and more missile tests are carried out under complex electromagnetic environment. It leads to RF-based miss distance measurement system often is jammed by active jamming system and passive jamming system, the validity of measurement data is poor and does not meet the test requirements. Because the sound cannot be jammed under complex electromagnetic environment, an approach on miss distance measurement using acoustic method is brought out in this paper. After building the cone equation of supersonic missile, the time differences are used to resolve the miss distance by LS. Based on the idea of maximum likelihood estimation, the optimization results are searched in the search-space of missile attitude and velocity. The result of simulation indicates, the calculation precision of flight path is better than 2m in most area when the missile fly over target-ship.