www.gusucode.com > control 案例程序 matlab源码代码 > control/TimeDomainResponsesofMIMOModelExample.m

    %% Time-Domain Responses of MIMO Model  
% This example shows how to obtain impulse response data and plots for a
% multi-input, multi-output (MIMO) model using |impulse|. You can use the
% same techniques to obtain other types of time-domain responses of MIMO
% models.

%% 
% Create a MIMO model and plot its response to a |t| = 0 impulse at all inputs. 
H = rss(2,2,2);
H.InputName = 'Control';
H.OutputName = 'Temperature';
impulse(H)    

%%
% |impulse| plots the response of each output to an impulse applied
% at each input. (Because |rss| generates a random state-space model, you
% might see different responses from those pictured.) The first column of
% plots shows the response of each output to an impulse applied at the first
% input, |Control(1)|. The second column shows the response of each output
% to an impulse applied at the second input, |Control(2)|.  

%% 
% Calculate the impulse responses of all channels of |H|, and examine the
% size of the output. 
[y,t] = impulse(H);
size(y) 

%%
% The first dimension of the data array |y| is the number of samples in
% the time vector |t|. The |impulse| command determines this number automatically
% if you do not supply a time vector. The remaining dimensions of |y| are
% the numbers of outputs and inputs in |H|. Thus, |y(:,i,j)| is the response
% at the |i| th output of |H| to an impulse applied at the |j| th input.