by Jerry Avins <jya@[EMAIL PROTECTED]
>
Oct 7, 2008 at 11:56 AM
aenima1891 wrote:
> i've a doubt now
> A fir filter is a filter with a finite impulsive response, which satisfy
> the requirement below:
>
> h[n] = h[M-n] 0<=n<=M FIR FILTER (TYPE I or II)
> = 0 elsewhere
That is the condition for a symmetric FIR.
> So a fir filter is a symmetric filter
*Not* so. It only shows that a symmetric FIR is a symmetric filter.
> So h1[n]=[0 0 0 0 1] is'n a fir filter, but it gives to me a delay of 4
> anyway.
>
> Can i use this filter or i must use the fir filter [0 0 0 0 1 0 0 0 0]?
Of course you can use it.
> My only goal is to realize a filter which implement a pure delay. I
think
> that i can use the filter h1 (although it is NOT fir)
>
> Am I right?
You are wrong that it isn't FIR. You are right that you can use it.
Jerry
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