how do i work out the transfer function of my filter for use in an adaptive filter?

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Hey, I just need a bit of help getting to a transfer function for a filter.
i have to use an FIR filter that i designed in an adaptive filter set up and it seems as though i'll need it in transfer function form to do this. How do I get to transfer function form?
Many thanks, Tom
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Matt Fig
Matt Fig 2012-11-2
Tom's question:
Hey, I just need a bit of help getting to a transfer function for a filter.
i have to use an FIR filter that i designed in an adaptive filter set up and it seems as though i'll need it in transfer function form to do this. How do I get to transfer function form?
Many thanks, Tom

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Honglei Chen
Honglei Chen 2012-5-23
If it's an FIR, then the coefficients are the transfer function. Say the coefficients are stored in b, then you can view the transfer function as
freqz(b,1)

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