Clark [mailto:[EMAIL PROTECTED]
Sent: Friday, June 06, 2008 12:27 PM
To: Long, Jeffrey P.
Cc: gnuradio mailing list
Subject: Re: [Discuss-gnuradio] Posted: Enhanced GMSK demodulator
On Fri, Jun 6, 2008 at 9:30 AM, Long, Jeffrey P. <[EMAIL PROTECTED]>
wrote:
> Steven-
>
> Did you ac
On Fri, Jun 6, 2008 at 9:30 AM, Long, Jeffrey P. <[EMAIL PROTECTED]> wrote:
> Steven-
>
> Did you actually find that the decision threshold needs to be biased? I
> actually implemented the 2 bit differential detector on a custom asic
> that was targeted at streaming audio(in 2004) and during the
>
On Fri, Jun 6, 2008 at 8:56 AM, isaacgerg <[EMAIL PROTECTED]> wrote:
>
> Ive noticed that the papers you cited only take in "real" data and not
> "complex." Is this true? Is this true for your implementation?
>
> Isaac
I think they do in fact take in complex. How would one do a 90deg
phase shift
ubject: Re: [Discuss-gnuradio] Posted: Enhanced GMSK demodulator
On Thu, Jun 5, 2008 at 5:28 PM, Gregory Maxwell <[EMAIL PROTECTED]>
wrote:
> On Thu, Jun 5, 2008 at 3:25 PM, Steven Clark
<[EMAIL PROTECTED]> wrote:
> [snip]
>> It should be a
>> drop-in replacement
Ive noticed that the papers you cited only take in "real" data and not
"complex." Is this true? Is this true for your implementation?
Isaac
Steven Clark-2 wrote:
>
> I've added a link to
> http://gnuradio.org/trac/wiki/Enhanced_GMSK_Demodulator from
> http://gnuradio.org/trac/wiki/OurUsers
On Thu, Jun 5, 2008 at 5:28 PM, Gregory Maxwell <[EMAIL PROTECTED]> wrote:
> On Thu, Jun 5, 2008 at 3:25 PM, Steven Clark <[EMAIL PROTECTED]> wrote:
> [snip]
>> It should be a
>> drop-in replacement for the existing demodulator in designs, except
>> that the transmitted data needs to be differentia
On Thu, Jun 5, 2008 at 3:25 PM, Steven Clark <[EMAIL PROTECTED]> wrote:
[snip]
> It should be a
> drop-in replacement for the existing demodulator in designs, except
> that the transmitted data needs to be differentially encoded (you will
> NOT, however, need a differential decoder on the receive s
>
> Steven,
>
> If you were to generate a patch that had your demodulator show up as a
> new demod called, say, gsm_demod_alt2 that hooked it into the existing
> framework with this new name, we could add it to the tree and it would
> get more testing without having to overwrite the known implemena
On Thu, Jun 05, 2008 at 03:25:29PM -0400, Steven Clark wrote:
> I've added a link to
> http://gnuradio.org/trac/wiki/Enhanced_GMSK_Demodulator from
> http://gnuradio.org/trac/wiki/OurUsers
>
> Summary:
> [...] offers an enhanced GMSK demodulator that I believe to be
> superior to the GNURadio sta
