how can i find the lsim info for this transfer function

Question

Kobi 2013-5-29

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/77401-how-can-i-find-the-lsim-info-for-this-transfer-function

采纳的回答： Wayne King

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i'm trying to find lsim info for this transfer function, i know the code

s=lsiminfo

this code is like

stepinfo(sys)

which is great, but i need to use lsim.

this is my Matlab program:

G=tf([],[]);    % ANY KIND OF TRANSFER FUNCTION
t=0:0.001:1;
u=100*heaviside(t);     % Step in 100 level
lsim(G,u,t)             % Liniar Simulation
LsimInfo=lsiminfo(G)

i need relevant data for both the Heaviside (step) that applied into the transfer function but i don't know how to get this info.

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Azzi Abdelmalek 2013-5-29

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what do you mean by

 i need relevant data for both the Heaviside (step) that applied into the transfer function

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Answer 1

Wayne King 2013-5-29

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/77401-how-can-i-find-the-lsim-info-for-this-transfer-function#answer_87040

编辑：Wayne King 2013-5-29

在 MATLAB Online 中打开

 G = tf(1,[1 2 5]); % whatever your transfer function is
 t=0:0.001:1;
 u=100*heaviside(t);     % Step in 100 level
 resp = lsim(G,u,t);
 S = lsiminfo(resp,t);

The above user resp(end) as the steady-state value.