On Tue, 7 Oct 2008 09:29:03 -0700 (PDT), John <sampson164@[EMAIL PROTECTED]
>
wrote:
>On Oct 7, 10:13 am, move <liubeny...@[EMAIL PROTECTED]
> wrote:
>> Hi all:
>>
>> I want to implemnt the filter spec below using CIC + CICCOMP filter
>>
>> FS=5MHz, fp=9k, fst=10k, ap=0.1, ast=100, decimator=100
>>
>> I am using a Differential delay=50 and Number of sections=5 CIC filter
>> and cascading a ciccomp filter which provide an extra 2 decimator. but
>> the cic compensate filter
>>
>> fs=100k, fp=9k, fst=10k,ap=0.1,ast=100 D=2
>>
>> will take 404 taps to implement using equiripple method, the taps is
>> too long for input data block which is only 200 samples a frame, so
>> before next frame is coming, the filter is still full of unprocessed
>> last frame data, this will cause the output of nextframe filter in-
>> accurate.
>>
>> any suggestions?
>>
>> savor
>
>I am at the liquor store to buy some gin. I really like Tanqueray, but
>I only have enough money for Gordon's. What should I do?
>
>John
Fat Tire.
Eric Jacobsen
Minister of Algorithms
Abineau Communications
http://www.ericjacobsen.org
Blog: http://www.dsprelated.com/blogs-1/hf/Eric_Jacobsen.php
|
