动态系统正实性的一种判定方法

A Novel Method for Distinguishing the Posifive Real Property of Dynamic System

给出了线性定常连续（离散）系统 为正实的一个新的充要条件。

in this paper. a new necessary and sufficient condition is proposed for the continuous (discrete) linear time-invariant system to be positive real.The present method is more simply than others in using.