H_∞控制在机载光电跟瞄系统中的应用

Application of H_∞ Control to Airborne Electro-optical Tracking and Pointing System

机载光电跟瞄系统是一个受多种干扰影响的高阶复杂系统,其对系统的鲁棒性和抗干扰能力要求很高。H∞控制的特点是鲁棒性好,因此在对机载光电跟瞄系统研究的基础上,以方位回路的稳定控制为例建立数学模型,应用H∞控制和Kalman滤波相结合的方法设计控制器。仿真研究表明H∞控制器的控制效果良好,特别是模型参数摄动又有多种干扰作用时,性能虽稍有下降,但仍能有效跟踪。

Airborne electro-optical tracking and pointing system is a high order complex system which is influenced by multiple disturbance, so the system should be robust and has the capability of antijamming. The characteristic of H∞ control is good robustness, therefor on the basis of research on airborne electro-optical tracking and pointing system, taking stabilization control of orientation loop as example, a mathematical model is set up, controller is designed H∞ control and with Kalman filtering. Simulation shows that control effect of H∞ controller is good, especially when model parameter changes and multipledisturbances take into effect ,performance of the system decreases less ,but it still can effectively track.