以半捷联寻的制导**为对象,研究了捷联末制导系统中的捷联控制算法和制导信息滤波模型。首先分析了捷联末制导系统的工作原理,给出了捷联天线稳定平台的跟踪控制算法,然后针对捷联控制算法对目标视线角信息的需求,考虑仅有角度测量的被动制导情况,提出了一种基于Markov随机模型的机动目标跟踪模型,通过推广Kalman滤波技术可以获得目标视线角的估计。因为捷联末制导系统无法直接测量目标视线角速度,为了满足弹上比例导引的需要,提出了一个末制导系统角跟踪通道的数学模型,该模型可以采用常规的Kalman滤波算法获得目标视线角速度的估计值。最后,通过一系列数学仿真验证了上述方法的有效性。

The paper mainly studies the strap-down control algorithm and target information estimation model of the strap-down terminal guidance system of a homing missile. The working principle of strap-down terminal guidance system is described, and the tracking control law of strap-down antenna platform is proposed. Then, considering the requirement of the strap-down control to LOS of target, a model for maneuvering target tracking is put forward based on Markov random model, and an estimation of target LOS can be obtained by extended Kalman filter. Since the strap-down terminal guidance system can not measure LOS rate directly, a mathematical model is put forward for estimating it through normal Kalman filtering. The algorithms are also suitable to passive guidance systems. Simulation results showed the effectiveness of the above proposed method.