光电吊舱大速率平稳跟踪补偿技术研究

针对某型号光电吊舱大速率跟踪时的不平稳现象，提出了一种改进的滤波滞后超前补偿网络。运用MATLAB软件建立了系统机械传动装置的数学模型，分析了该滤波网络对系统动态性能的改进效果。相对于常规滤波器，该滤波网络既考虑了中心谐振频率对系统动态性能的影响，又兼顾了其他谐振点对系统性能的影响。实验结果表明：采用该滤波网络能显著提高系统的动态性能，有效抑制抖动幅度，且数字滤波更易于实现。

Compensation technology for high velocity tracking of electro-optical pod

In order to overcome the jitter,which appears in an electro-optical pod during high speed tracking,an improved lead and lag compensation filter network is proposed. A mathematical model for the pod's mechanical transmission system was established with MATLAB. The improvement on system dynamic performance made by the filtering network was analyzed. Compared to the traditional filter,such filter takes care of both central resonance frequency's impact on system dynamic performance and other resonances' impact on system performance. The experiment results indicate that such filter can improve the system dynamic performance significantly,effectively reduce the jitter amplitude and make digital filering easier to be implemented.