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精密跟踪雷达跟踪目标时造成的误差由两部分组成:即系统误差和随机误差。为提高精度要同时减小系统的动态滞后和随机误差,但减小这两种误差对伺服系统提出的要求是矛盾的,也就是减小动态滞后要增加系统的带宽,而减小随机误差则要求系统的带宽减小。系统中采用前馈的方法则可以做到同时兼顾,也就是用前馈方法开环控制减小系统的动态滞后,窄带跟踪可以减小系统随机误差。所以,采用前馈方法的跟踪系统是可
Precision tracking radar tracking the target error caused by two parts: the systematic error and random error. To improve the accuracy of the system to reduce the dynamic lag and random errors, but to reduce these two errors on the servo system requirements are contradictory, that is, to reduce the dynamic lag to increase the system bandwidth, while reducing the random error then System bandwidth requirements decrease. Feedforward method in the system can be done at the same time, that is, open-loop control with feedforward method to reduce the dynamic lag of the system, narrow-band tracking can reduce the system random error. Therefore, the tracking system using feedforward method is acceptable