www.gusucode.com > control 案例程序 matlab源码代码 > control/StepResponsePlotOfFeedbackLoopWithDelayExample.m
%% Step Response Plot of Feedback Loop with Delay % Create a feedback loop with delay and plot its step response. % Copyright 2015 The MathWorks, Inc. s = tf('s'); G = exp(-s) * (0.8*s^2+s+2)/(s^2+s); T = feedback(ss(G),1); step(T) %% % The system step response displayed is chaotic. The step response of % systems with internal delays may exhibit odd behavior, such as recurring % jumps. Such behavior is a feature of the system and not software % anomalies.