How to obtain the system response from initial signal and final signal? Using Convolution or deconvolution!

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Amjad Iqbal 2022-8-28

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https://ww2.mathworks.cn/matlabcentral/answers/1789040-how-to-obtain-the-system-response-from-initial-signal-and-final-signal-using-convolution-or-deconvo

评论： Chunru 2022-8-30

S_to_Sc.mat

Dear Researchers and Matlab Community,

I have a query regarding to obtain the system response.

In order to obtain the correct result from scatterings, I divided the signal using %Sc = S./(repmat(Sref,size(S,1),1));

as given below:

My question is how can I get the system response, since I have both Y and X, how can I get H, I read about Convolution or deconvolution.

I need guidance to obtain the system response.

angle = -180:1:180-1;

Angle_ref = 5;

S = input (2D signal) % attached

[val_min,i_ref] = min(abs(angle - Angle_ref));

Sref = S(i_ref,:);

Sc = S./(repmat(Sref,size(S,1),1));

Your comments and suggestions/solution will be highly appreciated.

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Amjad Iqbal 2022-8-29

Do you think the system response might be very non-linear?

As per above equation I obtained such response, it should me rect or sinc, but I guess may be due to X has more zeros. or any suitable solution to find the reasonable system response!

Chunru 2022-8-30

One way is to build a model of the system with some parameters and then estimate the parameters from data. This requires background information about the problem you want to solve.

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