Research and simulation of electro-optical tracking and pointing system based on H∞ control

Airborne electro-optical tracking and pointing system is an angular position system which is influenced by multi-disturbance, from inner to out this platform consists of yaw loop, pitching loop and roll loop, the control system of every loop consists of stabilization loop and tracking loop. Taking control of yaw loop as example to set up mathematics model of stabilization control system on the basis of analyzing apiece composing part, taking the advantage of H-infinity control robustness, combining with Kalman filter, H-infinity stabilization controller is designed. Smith estimating PID tracking controller is designed for tracking control. Simulation research show that the control effect which airborne electro-optical Tracking and Pointing System based on H-infinity control is good, especially when model parameter change and multi-disturbance affect, the system capability have little fall, but this system still can effective track.