Re: [Discuss-gnuradio] Complete USRP DDC Frequency Response Analysis

[Hans Glitsch]

Hi,

Thank you very much for your help.  Can you post the output of your matlab 
program for 250 total decimation?  I would do it myself with your m file, 
but I don't have matlab.

Thanks,
Hans


----- Original Message ----- 
From: "Eng. Firas" <address@hidden>
To: <address@hidden>
Sent: Thursday, May 17, 2007 12:47 PM
Subject: [Discuss-gnuradio] Complete USRP DDC Frequency Response Analysis


> Dear Friends,
>
> Attached is a complete MATLAB based USRP DDC frequency response Analysis
> figures. The USRP DDC decimation rate was 64. The CIC filter response
> (decimation =32), HBF response (decimation =2) and cascaded CIC + HBF 
> (total
> decimation =64) response figures are attached. The MatLab source file used
> in this analysis is also attached.
> I hope this is a useful work.
>
> Regards,
>
> Firas,
>
> http://www.nabble.com/file/8500/%280%20-%2032%29MHz%29%20CIC%20Frequency%20Response%20%28CIC%20decimation%20%3D32%29.JPG
> (0 - 32)MHz) CIC Frequency Response (CIC decimation =32).JPG
> http://www.nabble.com/file/8501/%280%20-%202%29MHz%29%20CIC%20Frequency%20Response%20%28decimation%20%3D32%29.JPG
> (0 - 2)MHz) CIC Frequency Response (decimation =32).JPG
> http://www.nabble.com/file/8502/Useful%20Band%20%280%20-%201%29MHz%29%20%20HBF%20Frequency%20Response.JPG
> Useful Band (0 - 1)MHz)  HBF Frequency Response.JPG
> http://www.nabble.com/file/8503/Useful%20Band%20%280%20-%201%29MHz%29%20CIC%20%2B%20HBF%20Frequency%20Response%20%28decimation%20%3D64%29.JPG
> Useful Band (0 - 1)MHz) CIC + HBF Frequency Response (decimation =64).JPG
> http://www.nabble.com/file/8504/Full%20Band%20%280%20-%2032%29MHz%29%20USRP%20DDC%20Frequency%20Response%20%28decimation%20%3D64%29.JPG
> Full Band (0 - 32)MHz) USRP DDC Frequency Response (decimation =64).JPG
> http://www.nabble.com/file/8505/Useful%20Band%20%280%20-%201%29MHz%29%20USRP%20DDC%20Frequency%20Response%20%28decimation%20%3D64%29.JPG
> Useful Band (0 - 1)MHz) USRP DDC Frequency Response (decimation =64).JPG
> The MATLAB m File used to generate the above figures:-
> http://www.nabble.com/file/8506/usrpddc.m usrpddc.m
>
> --
> View this message in context: 
> http://www.nabble.com/Complete-USRP-DDC-Frequency-Response-Analysis-tf3773947.html#a10671057
> Sent from the GnuRadio mailing list archive at Nabble.com.
>
>
>
> _______________________________________________
> Discuss-gnuradio mailing list
> address@hidden
> http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
>
>
> --
> No virus found in this incoming message.
> Checked by AVG Free Edition.
> Version: 7.5.467 / Virus Database: 269.7.1/807 - Release Date: 5/16/2007 
> 6:05 PM


--
This message has been scanned for viruses and
dangerous content by MailScanner, and is
believed to be clean.