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QMF Banks

Started by Appalayagari Sreedhar February 2, 2004
Respected All,

I am Sreedhar, I am Reading Multirate DSP, In that I am interested in QMF
Design, I read it as Perfet reconstruction filter, why is it so?.
Are there any advantages using this Quadrature Mirror Filter bank.

One More question?
The Frequency response of QMF looks like aliasing, why is it so,
though there is aliasing we are reconstructiong perfectly, how is it possible.

Please answer my query.

Thanks in Advance.

Yours Sincerely,
Sreedhar.