知识与财富的链接
借助Matlab和iSIGHT软件平台强大的功能，优化不同时间点上阻力系数的修正系数，从而实现多管火箭弹系统（MLRS）速度曲线和弹道曲线的最优拟合．根据飞行力学方程，采用Matlab软件建立远程火箭弹的六自由度弹道仿真模型，解算理论弹道，得出实测弹道和理论弹道的偏差信息．采用在不同时间点增加阻力系数修正系数的方法拟台速度-时间曲线和位置-时间曲线．借助iSIGHT的优化设计功能，得到允许误差下的最优拟合结果．
A trajectory fitting method for Multiple Launch Rocket System(MLRS) is proposed.Matlab integrated with iSIGHT are used and correction coefficients of drag coefficients at different time points are optimized.According to flight mechanics equations,six degrees of freedom simulation model for MLRS is built by Matlab firstly.The theoretical trajectory is then calculated and the deviations between actual trajectory and theoretical trajectory are obtained.Different drag correction coefficients at different time points are introduced,and then both speed curve and ballistic curve fitting are finished.With the aid of iSIGHT the optimal fitting under the tolerated error is realized.
