Research the problem of tracking missile. Due to the movement of the real-time target tracking is unsatisfactory , when missiles implement the jump and dive action against the path, the ground detectors can not keep up with the change of the missile path in time, resulting in the missile tracking delay problem. To fight this problem, the paper put forward a point model of tracking method. In tracking missile route, the method extracted the feature points that have linear correlation with the missile movement and constructed the point model of feature point in real-time. Through the determination of point model movement condition, the missile tracking was realized, all points calculation of the infrared image was avoided, and the computation was reduced, making the floor detectors to keep up with the change of the missile path. Experiments show that the method can solve the problem of delay missile tracking, and realize real-time tracking of the missile.%研究导弹跟踪问题,由于运动目标跟踪的实时性差,当导弹为防御攻击突变运动路径,实施跃升和俯冲动作时,地面探测仪不能及时跟上导弹路径的变化,造成导弹跟踪延迟的问题.针对这一难题,提出了一种点模型的跟踪方法.在跟踪导弹路径时,提取与导弹运动线性相关的特征点,实时构建特征点的点模型,通过确定点模型的运动状况来实现对导弹的跟踪,避免了对红外图像中所有点的计算,从而减少了计算量,使得地面探测仪能够及时跟上导弹路径的变化.实验证明,点模型这种方法能够解决导弹跟踪延迟的问题,实现导弹的实时跟踪,取得了满意的结果.
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