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What does Whitening means ?

  1. Aug 20, 2013 #1
    Hi all,
    White noise means a noise signal with Power spectral density flat in the working frequency ranges. OK I know why it is named as white too. But what does really whitening means for example in Independent component analysis etc.

    -Devanand T
    Last edited: Aug 20, 2013
  2. jcsd
  3. Aug 20, 2013 #2


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    Gold Member

    The wikipedia article on independent component analysis talks about whitening as a preprocessing step and the entry on whitening explains what it is. Read those and then ask questions.
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