Re: [Discuss-gnuradio] Decimating FIR Filter Taps and gr.firdes.complex_band_pass incompatibility - Marcus SARA SID SDR

2010-09-26 Thread John Shields 
Thanks very much Marcus. I eventually figured out that in the variable block, I 
needed to include:

gr.firdes.complex_band_pass (gain,sampling_freq,low_cutoff_freq,

high_cutoff_freq, transition_width, window = WIN_HAMMING,beta = 6.76)

and when I plugged in some variables based on the b/w and centre frequency, the 
Decimating FIR filter block went good!

Of course, no idea if my guesses are real-world.

Look forward to getting the latest and greatest.



   Slainte,



 John


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Re: [Discuss-gnuradio] UHD Announcement - September 23rd 2010

2010-09-26 Thread Tom Rondeau 
On Sat, Sep 25, 2010 at 6:23 PM, Josh Blum j...@joshknows.com wrote:


 I agree with you it's not exactly right.

 I'm not sure about the right action.

 This issue should probably go onto the list of things to be considered
 in the grand build restructuring that was discussed by some of us a
 couple of weeks ago.


 Autotools is trying to be helpful by setting the unspecified prefix to
 NONE during configure. But since gnuradio is using it as if it was always
 set I suggest we do the following at the top of configure.ac

 if test ${prefix} = NONE; then
    prefix=${ac_default_prefix}
 fi

 We can put it on the next branch and hope it fixes more things than it
 breaks... at least until the grand rebuild structuring comes along. :-)

 -Josh


Thanks, guys. I've made a note of this to keep in mind while we're
working on the restructuring.

Tom

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Re: [Discuss-gnuradio] UHD Announcement - September 23rd 2010

2010-09-26 Thread Eric Blossom 
On Sun, Sep 26, 2010 at 09:40:58AM -0400, Tom Rondeau wrote:
 On Sat, Sep 25, 2010 at 6:23 PM, Josh Blum j...@joshknows.com wrote:
 
 
  I agree with you it's not exactly right.
 
  I'm not sure about the right action.
 
  This issue should probably go onto the list of things to be considered
  in the grand build restructuring that was discussed by some of us a
  couple of weeks ago.
 
 
  Autotools is trying to be helpful by setting the unspecified prefix to
  NONE during configure. But since gnuradio is using it as if it was always
  set I suggest we do the following at the top of configure.ac
 
  if test ${prefix} = NONE; then
     prefix=${ac_default_prefix}
  fi
 
  We can put it on the next branch and hope it fixes more things than it
  breaks... at least until the grand rebuild structuring comes along. :-)
 
  -Josh
 
 
 Thanks, guys. I've made a note of this to keep in mind while we're
 working on the restructuring.
 
 Tom
 

It looks like it's part of autoconf's machinery...
On my system I found it in /usr/share/autoconf/autoconf/general.m4
around line 558.

  AC_SUBST(prefix, NONE)dnl

There's a discussion here that's relevant:

  http://www.mail-archive.com/autoc...@gnu.org/msg15773.html


I think Josh's suggestion will work.  It probably has to occur after
AC_INIT (or maybe AC_PREREQ).  Not sure if there's anything else that
needs to run first.

Eric

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Re: [Discuss-gnuradio] Decimating FIR Filter Taps and gr.firdes.complex_band_pass incompatibility - Marcus SARA SID SDR

2010-09-26 Thread Marcus D. Leech 
 Hi Marcus,

 On 9/26/2010 12:35 AM, Marcus D. Leech wrote:

 In the April/May 2010 SARA Journal, Marcus Leech had an article
 entitled
 Building an SDR SID Receiver in an Afternoon which was highly
 information and inspirational.

 [...]

 John, let me send you the latest TAR image of my SID receiver work--it
 has progressed quite a bit beyond that article, and Gnu Radio
has also changed since I wrote that article.

 If that offer is open to others on the list, I would be interested in
 seeing the updates.

 Thanks!



http://www.sbrac.org/files/sidsuite.tar.gz



-- 
Marcus Leech
Principal Investigator
Shirleys Bay Radio Astronomy Consortium
http://www.sbrac.org



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