The 'ss' class does not support code generation.

I am trying to implement kalman fiter in simulink, so I am using MATLAB function block to get the gains of Kalman filter. But I Can't resolve this error: "The 'ss' class does not support code generation." I attached a photo of my code.

Answer 1

[Paul]

Hi Bavly,

The only two lines in that function (it would be better if you pasted in text, rather than a screen capture) that are not eligible for code generation are the definition of the plant and the call to kalman. The following approach might work

Define a separate m-function on your path

function L = mykalman(A,B,C,D,Q,R)

[kalmf,L] = kalman(ss(A,B,C,D),Q,R);

end

Then the code in the Matlab Fucntion would be:

function [A,B,C,D,L] = fcn(R0,R1,R2,C1,C2,Em,Soc)
coder.extrinsic('mykalman')

% put lines of code here to compute A,B,C,D,Q,R, then

L = mykalman(A,B,C,D,Q,R);

end

Alternatively, you might want to take a look at: Kalman Filter block

[Bavly Atef]

Great, thanks alot

It worked, but first I had to preinitialize L .