Can the rica function return an estimate of the unmixing matrix?

Question

Henry Pang on 17 Mar 2018

0
Link

Direct link to this question

https://nl.mathworks.com/matlabcentral/answers/388853-can-the-rica-function-return-an-estimate-of-the-unmixing-matrix

Commented: Komal on 17 Aug 2023

Hi, I am experimenting with MATLAB's rica algorithm and the conventional fastICA algorithm (open-source, MATLAB source code). I have 2 signals with mixed sine waves as input data and want to compare both algorithms' estimate of the unmixing matrix W given the input data. Essentially, this is the cocktail party problem with two sources and two mixed signals.

After reading the documentation on rica and the ReconstructionICA object, I am still very confused. Does the TransformWeights property of the ReconstructionICA object relate to W? If not, how can I calculate W with rica?

1 Comment
Show -1 older commentsHide -1 older comments

Komal on 17 Aug 2023

Can you give me rica.m files ?

Sign in to comment.

Sign in to answer this question.

Answer 1

Bernhard Suhm on 25 Mar 2018

0
Link

Direct link to this answer

https://nl.mathworks.com/matlabcentral/answers/388853-can-the-rica-function-return-an-estimate-of-the-unmixing-matrix#answer_311800

Yes, it does, if you have RICA reduce your original features to just 2, see this example in our doc: https://www.mathworks.com/help/stats/extract-mixed-signals.html