寄生回路稳定性分析及制导控制相关设计方法研究

Research on Stability Analysis of Parasitical Loop and Guidance Control Related Design Method

摘要:

针对雷达制导系统由于隔离度及天线罩折射率导致的高空、低动压条件下寄生回路稳定性低的问题,提出了一种制导控制相关设计方法；首先建立了某型主动雷达制导地空导弹寄生回路线性化数学模型并分析了其稳定性；其次,提出了一种制导控制相关设计方法,即在法向过载控制系统设计时考虑寄生回路的影响；仿真结果表明基于制导控制相关设计方法得到法向过载控制系统可以大大提高寄生回路的稳定性,降低了制导系统对天线罩折射率的要求。

Abstract:

On the issue of low stability of parasitic loop caused by seeker disturbance rejection rata and radome boresight error slope in situations of high altitude and low velocity pressure, a guidance control related design method is presented. First, the linear model of parasitic loop of an active-radar guided surface-to-air missile is established, and the stability is analyzed. Second, a guidance control related design method is presented; effects of parasitic loop are considered while designing the autopilot. Simulation results show that the designed autopilot can greatly improve stability of parasitic loop and reduce the demands of radome boresight error slope.