by Jerry Avins <jya@[EMAIL PROTECTED]
>
Oct 6, 2008 at 10:17 PM
bharat pathak wrote:
> Dirk,
>
> Good that you pointed it out. Actually i know very well that
> trailing zeros are not needed. But this example illustrates
> some im****tant aspects. I also know that adding zeros is
> simplest way. But again this is DSP way of looking at the
> delay line.
>
> As a simple example if we have 9 tap LPFIR then we know for
> sure that the group delay of this filter is 4. ((9-1)/2).
...
If the filter is symmetric, yes. Each time the single non-zero
coefficient is moved by one, the delay changes by the same amount.
If LPFIR means low-pass FIR, what does a single-tap HPFIR look like?
Jerry
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