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Question
In system identification toolbox , when we estimate a transfer function, What is the method that used in Toolboxto estimate the transfer function ? Does it based on ARX,ARMAX,ARMA????
<</matlabcentral/answers/uploaded_files/65457/15497813_1236822093074574_373532378_n.png>>
9 years ago | 0 answers | 0
0
answersQuestion
How i can solve this problem without changing the sample time, see the figure below.
this figure appear when i simulate the MPC designer app
9 years ago | 0 answers | 0
0
answersQuestion
why the two outputs are different (fig from scope and the other from step output from command window) ..although the transfer function and the input are same in command window and simulink model (see two figures below that will be explain my question
<</matlabcentral/answers/uploaded_files/52960/m1.PNG>> << <</matlabcentral/answers/uploaded_files/52959/m2.PNG>> >> ...
10 years ago | 0 answers | 0
0
answersQuestion
when i applied same input like step on transfer function block and on the LTI system in simulink model ; the output in scope does not the same although the transfer function is same in two blocks (tf, LTI system)
<</matlabcentral/answers/uploaded_files/52700/Capture11.PNG>>
10 years ago | 1 answer | 0
1
answerQuestion
I have a problem in plot function of t .this problem is related to imaginary part
plot(at, double(subs(X(n),t,at))); title('time response'); Warning: Imaginary parts of complex X and/or Y arguments ignore...
11 years ago | 1 answer | 0
1
answerQuestion
How i can convert second order differential equation with matrix coefficient to state space representation in matlab ,I get it by simulink but i need it by another method
[m]x''+[c]x'+[k]x=[f] [m] [c] &[k] are 12 *12 matrix [f]=12*1 matrix i need to find the frequency response,,,, it is...
11 years ago | 0 answers | 0
