换路时刻激励与系统状态跳变之间关系的进一步讨论  

Further Discussion on the Relationship between the Excitation at the Switch Time and the Jump of the System State

作　　者：李泽光[1] 宋琳[1] LI Ze-guang;SONG Lin(College of Information Engineering,Dalian University,Dalian 116622,China)

机构地区：[1]大连大学信息工程学院,辽宁大连116622

出　　处：《大连大学学报》2018年第6期1-2,共2页Journal of Dalian University

摘　　要：LTI连续时间系统的系统状态在换路时刻(t=0)是否发生跳变不仅取决于系统微分方程右边形式,也取决于系统在换路时刻的激励。换路时刻激励x(t)=[x(0_+)-x(0_-)]△u(t)仅适用于阶跃信号激励情况,而不适用于单边指数信号或正余弦信号激励情况。Whether the system state of LTI continuous-time system will jump at the switch time(t=0)depends not only on the right-hand form of the system differential equation,but also on the excitation of the system at the switch time.The excitation x(t)=[x(0+)-x(0_)]Δu(t)at the switch time is only suitable for step signal excitation,but not for single-sided exponential signal or sine-cosine signal excitation.

关 键 词：换路时刻激励 状态跳变 系统响应 

分 类 号：TN911[电子电信—通信与信息系统]