MATLAB: How to create an input that is a function of State

control systemsfeedbackstate-space modeltransfer function

I have a mechanical system with:

2 Inputs (i, fs)

4 states(x1, x2, x3, x4)

2 outputs(y1=x1 and y2=x3)

I want the input 'fs' as a function of two states x2 and x4. How can i do that?…

Does this problem require state feedback and how can I use it for a practical problem.

Thanks

Shilp

Best Answer

In your SS block, initialy c=[1 0 0 0;0 0 1 0] and d=[0 0;0 0]

If you want to use x2 and x4, set c=eye(4) and d=zeros(4,2), you will obtain 4 output in this order x1, x2, x3 and x4. use x1 and x3 as output, and do whatever you want with x2 and x4

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MATLAB: Place array in a matrix

Perhaps I'm misunderstanding but if

 x = [1.0000         0
      0.5000    1.0000
      0.5000    1.5000
           0   -1.0000
     -1.0000    1.0000
      0.5000   -1.0000];

which is a 6x2 array, then wouldn't

 x*x'

be the desired 6x6 array?

MATLAB: How to create such matrix ? (please look at the thread for further details)

So, the original values X4, X5 etc. are not used at all?

XYZ = ceil(10*rand(4,6)) % example data
RESULT = zeros(size(XYZ)) ; 
RESULT(:,[1 2 3]) = XYZ(:,[1 2 3])
M = size(XYZ,2) ;
for k = 4:M
   RESULT(:,k) = sum(RESULT(:,k-[1 2 3]),2)/3 
end

Best Answer

Related Solutions

MATLAB: Place array in a matrix

MATLAB: How to create such matrix ? (please look at the thread for further details)

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