一种弹目遭遇点预测方法

为充分利用舰空导弹中制导段所获信息并减小导弹中制导段的弹道曲率，给出一种弹目预测遭遇点的解算方法，并据此设计比例导引制导律。在初始发射坐标系中，假设目标由当前位置以当前速度大小沿当前速度方向匀速运动至遭遇点，导弹由当前位置以当前速度大小按照一定的导引规律匀速运动至遭遇点。在该假设条件下，导弹到达遭遇点的总航路大小一方面...

A Method to Predict Impact Point of Missile and Target

To take full advantage of the information obtained by the ship-to-air missile in the midcourse and reduce the midcourse trajectory curvature, a method to determine the predictive impact point of missile and target was proposed. The proportional navigation guidance law was designed on the basis of the impact point. In the initial launch coordinate frame, the target flies to the impact point was supposed to be constantly along the current heading at current speed from current position, and the missile flies to the impact point was supposed to be constantly at current speed according to certain guidance law. On this assumption, the length of the overall path on which the missile flies to the impact point was solved by the guidance trajectory on the one hand, and the current position of the missile and impact point on was counted approximately by the distance between the other hands. Such that, the time-to-go when the missile （or the target） flies to the impact point was obtained, then the position information of the impact point was known. Simulation results showed the validity of the proposed method.