增益调度设计的参数化方法及其在导弹控制系统中的应用

Parametric gain scheduling method with application to missile control systems

根据参数化特征结构配置方法,针对传统的增益调度设计采用了一种新的插值技术,即特征向量插值。该方法充分利用了特征结构配置的全部自由度,通过合理选择特征值和自由参量,不仅使局部控制器达到了系统的设计指标,而且实现了控制器间的平滑切换。最后,将该方法应用于某BTT导弹自动驾驶仪的设计。仿真结果表明,该方法不仅保证了闭环系统的稳定性,而且能够有效地抑制抖动。

A new interpolation method for gain scheduling based on the parametric eigenstructure assignment theory, namely eigenveetor interpolation, is proposesed. The approach sufficiently utilizes the whole degrees of freedom provided by the eigenstructure assignment, and not only the local controller achieves the performance criteria, but smooth switching is realized by properly selecting the eigenvalues and the free parameter vectors. The method is applied to the design of a bank - to - turn （BTT） missile autopilot. Simulation results demonstrate that the proposed method can efficiently attenuate the chattering and guarantee stability and performance of the closed -loop system.