准平行接近法导引律的研究与实现

Research and Realization of Quasi-Parallel Approaching Method

利用广义卡尔曼滤波对目标未来多个时刻位置的一揽子估计,取消了平行接近法要求视线角不变的限定,提出了准平行接近法,该方法允许视线做有向旋转;给出了导弹与目标法向加速度的关系、导弹与目标速度方向变化规律以及视线角速度的确定方法。通过准平行接近法与平行接近法仿真结果的比较,证实了准平行接近法的有效性与可行性。

The groups of the positions of target in the future are estimated by using GKF（ generalized Kalman filter）. The limit of line-of-sight angle being constant in parallel approaching method has been canceled, a qua- si-parallel approaching method is put forward, which allows the directive rotation of LOS. The relationship of normal acceleration between missile and target, and the variation of velocity direction of missile and target are given. The determination method of LOS rate is presented. Compared with the simulation results of quasi-paral- lel approaching method with parallel approaching method, the effectiveness and feasibility of quasi-parallel ap- proaching method is confirmed.