Dear All,
Iam working subband acoustic echo cancellation.In that for subbanding the input signal i used polyphase IIR filter.I searched in net for polyphase IIr filter design.I got some techinical documents related to polyphase IIr filter, I mentioned important links related to
documents below.
1
formatting link
2
formatting link
In this document the filter coeffecients are also mentioned, But there is no time domain difference equation.I derived the difference equation from the transfer function given in the document and implement the filter.But the output of the filter is not clear.Give
me some valluable suggestions on time domain difference equation of polyphase IIR filter.
Thanks in advance.
venkat.