I had this question in the exam without any further explanation.

Why the time translation invariance is an important feature for time-frequency distributions?

I am writing to ask whether anyone can please explain what is time translation invariance? And why is it important feature?

  • 1
    $\begingroup$ Cool, but which part don't you understand? I presume you've read about that. $\endgroup$ – jojek Dec 13 '14 at 10:32

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