线性时不变系统模型的建立及方框图法研究  

Study of building models and charts for linear time invariant system

作　　者：张赜皓[1] 姬五胜[2] 

机构地区：[1]天津市中环系统工程有限责任公司,天津300060 [2]天津职业技术师范大学电子工程学院,天津300222

出　　处：《天津职业技术师范大学学报》2016年第4期32-35,共4页Journal of Tianjin University of Technology and Education

摘　　要：利用算子将微分方程转换成系统函数,借助梅森公式对系统函数进行分解,提出一种画出分解后系统方框图的简单方法。该方法可应用于通信工程系统分析,在整体分析中起到辅助分析作用。利用系统方框图的分解将前向通道与反馈环路分别进行讨论,可以简化对复杂系统的直接分析,在一定程度上降低了系统分析的难度。通过数学分析证明了该方法的正确性。A kind of method of drawing a system chart is introduced in this paper, by using the operator to transforming differential equation into a system function and by using Mason formula to decompose the system function. The method can be applied to the analysis of communication engineering system, and it plays an auxiliary role in the whole analysis. By using the decomposition of the block diagram of the system, the forward channel and the feedback loop are discussed respectively, which can simplify the direct analysis of complex systems, and reduce the difficulty of system analysis to a certain extent. The method is proved by mathematical analysis.

关 键 词：线性时不变系统 微分方程 系统方框图 

分 类 号：O224[理学—运筹学与控制论]