风速对声点阵立靶系统建模及算法的影响研究  

Influence of wind speed on modeling and algorithm of the point array acoustic target

作　　者：樊长虹[1] 杜立[1] 管文辉[1] 宋瑞[1] 

机构地区：[1]总参谋部第六十研究所,南京210016

出　　处：《应用声学》2015年第5期445-450,共6页Journal of Applied Acoustics

摘　　要：室外靶场中声点阵立靶应用时风对报靶精度有较大影响。使用几何方法推导了激波到达时间、矢量风速、弹丸速度和入射角、着靶位置之间的模型方程,然后将激波到达时间显式表述。该显式表达式可简化非线性最小二乘法求解并加速了收敛性,可同时求得弹丸着靶位置以及速度、入射角,可适用于不同的传感器阵列样式。通过仿真给出了风速对报靶精度影响的误差图。The wind has a remarkable influence on precision of the point array acoustic target in outdoor range. A geometric method is used to deduce the equation among the shock wave time of arrival （TOA）, the wind vector, the projectile velocity, the angles of incidence and the hit coordinates. Then the TOA is given in explicit expression, which simplifies a nonlinear least-squares iterative algorithm and accelerates its convergence. The expression and the algorithm can estimate the projectile velocity, the angles of incidence and the hit coordinates~ and can apply to various patterns of sensor array. The error maps of the wind＇s influence on the target are provided.

关 键 词：声点阵立靶 风矢量影响 到达时间显式表达 

分 类 号：TJ06[兵器科学与技术—兵器发射理论与技术]