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.