摘要
回差矩阵奇异值法是一种计算多变量系统稳定裕度的方法,由于其计算简单,易于计算机实现,已得到了较广泛的应用。但是按照这种方法计算的系统稳定裕度存在一定保守性,本文提出了基于回差矩阵奇异值的摄动矩阵迭代法,改善了计算多变量系统稳定裕度的保守性,并通过定点仿真验证,取得了较好的效果。
The minimum singular value method of the system return difference matrix is a method of calculating stability margin of multivariable system,which is widely applied due to simple algorithm in mathematics and fair computer programming realizability. But it contains conservative to calculate stability margin of system. In this paper,a new improved method based on the minimum singular value method of the system return difference matrix is implemented,which ameliorates the conservative of calculating stability margin and achieves good results by fixed-point simulation.
出处
《航天控制》
CSCD
北大核心
2015年第5期28-32,共5页
Aerospace Control
关键词
再入飞行器
多变量系统
回差矩阵
稳定裕度
Re-entry aerocraft
Multivariable system
Return difference matrix
Stability margin
