摘要
基于鲁棒控制理论对雷达导引头伺服系统进行综合与分析,在建立系统状态空间模型的基础上,将雷达导引头伺服系统的综合问题归结为标准的H∞控制问题,通过求Riccati不等式的对称正定解得到H∞/混合灵敏度控制器,以保证系统的鲁棒性;同时,分析了采用H∞控制器的系统性能。仿真实验结果表明,用该方法设计的控制系统具有良好的抑制扰动和跟踪给定效果,满足对雷达导引头伺服系统控制的要求。
Radar seeker servo systems are analyzed based on robust control theory, and state-space model of the system is built. Synthesis problem of radar seeker servo system is transformed into a standard H∞ control problem, a H∞/mixed-sensitivity controller which can guarantee robustness of the servo system is obtained through solving symmetrically positive solution of matrix Riccati inequality; meanwhile performance of system with H∞ robust controller is analyzed. Simulation results indicate that the radar seeker servo system with H∞ robust controller has good disturbance restraint capability and good tracking performance to input signal, it can satisfy control requirement to radar seeker servo system.
出处
《火控雷达技术》
2008年第3期14-17,共4页
Fire Control Radar Technology
