船站气象雷达目标前馈

Object Feed Forward Compensation Used in CINRAD Servo on Ship

讲述了船站气象雷达采用目标前馈提高伺服系统性能的问题。伺服系统执行体扫程序时,天线方位的高速运转可能产生超调和动态滞后误差,伺服系统采用开、闭环复合控制在方位闭环控制的基础上引入(方位角速度)补偿保证系统性能。对于船站CINRAD气象雷达伺服系统,通过坐标变换等运算可以解算出Ra前馈信号,把这个信号引入伺服控制系统能达到和陆站一样的跟踪特性。

The paper introduces the subject of using object feed forward compensation to improve the control capability of CINRAD on ship. When the servo executes the program of VCP, the azimuth with high speed rotation possibly produces overshoot and dynamic lag error. In order to ensure the system quality, the CINRAD servo system uses open-loop and close-loop complex control method, which introduces object feed forward signal Ra（azimuth velocity） compensation based on close-loop control. For the CINRAD servo on ship, R~ can be got by coordinate conversion and other calculation, and then input to the servo system. Finally, the CINRAD on ship can get the same capability as on the land.