Abstract:

A trajectory forecasting algorithm of the reentry hypersonic glide vehicle is designed based on the linear growth character of the liftdrag ratio of the vehicle. Firstly, by judging the movement equation, the most important thing of the algorithm is discovered, which is that how to predict the liftdrag ratio. Secondly, the simulation of the target trajectory shows the linear growth rule of the liftdrag ratio, the model of the liftdrag ratio variation function is given and the trajectory forecasting algorithm is designed. Simulation results show the efficiency of the forecasting algorithm. This algorithm is important to study the problems on combating with the hypersonic glide vehicle.