摘要
系统在控制作用支配下能够在有限时间间隔内从任意初始状态向任意希望状态转移,则其具有能控性。通过输出序列和功率谱建立系统数学模型,并采用最小二乘法估计模型参数。具有能控性的数字式控制器通过软件控制状态反馈元素,消除不稳定的因素,从而使系统具有灵活性和控制稳定的特点。
If a system can transfer a arbitrary initial state toward arbitrary desired state within a finite time interval under the governing of the control action, then it has controllability. A mathematical model of the system has been established through the output sequence and the power spectrum. The model parameters are estimated with least square method. The digital controller with controllability controls feedback elements of state with software and eliminates the instable factors, thus the system has the characteristics of flexibility and stable control.
出处
《光电工程》
EI
CAS
CSCD
北大核心
2002年第2期13-15,共3页
Opto-Electronic Engineering
关键词
能控性
数字式控制器
设计
Controllability
Feedback control
Linear systems
Mathematical models
