捷联寻的制导系统弹体追踪导引方法研究

对捷联寻的系统的简易制导方法—弹体追踪法进行全面剖析 ,解析分析了弹体追踪法对导弹速度、目标速度的约束 ,以及弹体阻尼、滞后、舵偏到攻角之间的传递系数对弹体追踪导引性能的影响。通过数学推导及应用控制理论分析与仿真 ,弹体追踪法较比例导引和速度追踪法在导引特性和打击机动目标时性能较差 ,但其成本较低 ,是一种降低制导武器成本的简易制导方法。但采用弹体追踪法时 ,导弹和目标的速度不能太大 ,当制导武器系统在形成导引误差信号存在固有滞后时 ,弹体稳定回路需要有一定阻尼 ,且舵偏到攻角之间的传递系数不能太大 ,即飞行过程中攻角要较小。

Research on Attitude Pursuit Guidance Law for Strapdown Homing System

This paper comprehensively analyzes the attitude pursuit guidance law which is one of the simple guidance methods for strapdown homing guidance system. Via the analytical solution of attitude pursuit, limitations on the velocities of missile and target are presented. The influence of damping, lagging and transfer parameter from rudder deviation to angle of attack on the attitude pursuit guidance law is discussed by using Automatic Control Theory. It is concluded that the velocities of missile and target should not be too large, and the stable loop of missile body should have some damping when the missile guidance system has inherent lagging, and the transfer parameter mentioned above should not be too large when the attitude pursuit guidance law is used.