目标快速运动及舰载平台姿态变化使得舰载光电跟踪系统形成较大的跟踪误差。为了减小该误差, 提出了一种基于前馈控制的补偿方案。该方案利用坐标变换给出了由船摇和目标运动引起的跟踪扰动量, 并通过滤波求取该扰动量的一阶导数, 以此作为跟踪系统的前馈量加入系统中, 达到对扰动进行补偿的效果。仿真结果显示, 系统的跟踪精度提高了一个数量级。

The rapid movements of targets and the attitude changes of shipboard platform will result in the tracking error of shipboard electro-optical tracking system. In order to reduce the error, a compensation method based on feedforward control was proposed. It gave the disturbance caused by the target motion and ship sway by using coordinate transformation, and then the first order derivative of the disturbance was estimated by kalman filter. Last, the derivative was added to the control system as the feedforward to compensate the disturbance. The simulation results show that the tracking precision is improved by one order of magnitudes.