因果移序定理及其应用

Causal Shift Theorem with Its Applications

本文给出了因果移序定理的时域、z域和状态方程表达式,证明了因果移序定理在离散系统的时域z、域和状态方程分析中的重要地位和作用。这些表达式不但使得系统分析简捷清晰,而且物理概念清楚。各章之间的内在联系也可交待清楚,这十分有利于学生的理解和消化。我们历年的"信号与系统"的教学实践有力地证明了这一点。

The time-domain, z-domain and state equation expressions of causal shift theorem are given in this paper. The impotent role of causal shift theorem in the time-domain analysis, z-domain analysis and state equation analysis of a discrete system is showed. The system analysis becomes very simple and clear. Their physical meanings are also clearly expressed. The relationship among the chapters of the textbook is obviously given. It is very helpfuull for students to learn and to understand, the studied knowledge that is proved by our teaching experiences for many years.