In-class activity: ICA

Read Independent Component Analysis chapter from DSP with Matlab (Giron-Sierra) and run the included programs. Answer the following questions:

  1. What does ICA do better than PCA when considering a mix of sources? Use the matlab programs to show an example.
  2. What is whitening and why is it important for ICA? Use the matlab programs to show an example.
  3. Why can’t the sources be Gaussian random data for ICA?

What to send

Please upload a PDF with the answers and comments to the above questions. Be creative about using the provided code.