My question to all of you responding on this question then is: How do I
convert the amplitudes of my GMSK signal to probabilities for viterbi based
demodulation?
Isaac
Steven Clark-2 wrote:
>
> On Thu, Jun 5, 2008 at 7:45 AM, isaacgerg <[EMAIL PROTECTED]> wrote:
>>
>> Hi,
>> Concerning GSM
gt; [mailto:discuss-gnuradio-bounces+jplong
> [EMAIL PROTECTED] On Behalf Of
> Steven Clark
> Sent: Friday, June 06, 2008 10:58 AM
> To: Ben Wojtowicz
> Cc: Discuss-gnuradio@gnu.org
> Subject: Re: [Discuss-gnuradio] gsm gmsk demodulation
>
> > On 6/6/08, Bob McGwier <[
towicz
Cc: Discuss-gnuradio@gnu.org
Subject: Re: [Discuss-gnuradio] gsm gmsk demodulation
> On 6/6/08, Bob McGwier <[EMAIL PROTECTED]> wrote:
>>
>> This is not my professional experience. The sounding data is used
to find
>> the channel and then the data symbols are soft
> On 6/6/08, Bob McGwier <[EMAIL PROTECTED]> wrote:
>>
>> This is not my professional experience. The sounding data is used to find
>> the channel and then the data symbols are soft detected through a "viterbi
>> equalizer" in every implementation I am aware of that is any good at all
>> with the
I agree with Bob, most gsm demodulators I have seen use a viterbi equalizer
(sometimes called MLSE equalization).
Ben
On 6/6/08, Bob McGwier <[EMAIL PROTECTED]> wrote:
>
> This is not my professional experience. The sounding data is used to find
> the channel and then the data symbols are soft
This is not my professional experience. The sounding data is used to
find the channel and then the data symbols are soft detected through a
"viterbi equalizer" in every implementation I am aware of that is any
good at all with the exception of one I wrote several years ago which
estimates the
Steven,
That is totally rockin'; thanks!
Isaac
Steven Clark-2 wrote:
>
> On Thu, Jun 5, 2008 at 7:45 AM, isaacgerg <[EMAIL PROTECTED]> wrote:
>>
>> Hi,
>> Concerning GSM GMSK demodulation, due to the ISI, I initially thought
>> many
>> folks were using the Viterbi algorithm on the waveform
On Thu, Jun 5, 2008 at 7:45 AM, isaacgerg <[EMAIL PROTECTED]> wrote:
>
> Hi,
> Concerning GSM GMSK demodulation, due to the ISI, I initially thought many
> folks were using the Viterbi algorithm on the waveform to demodulate it
> properly. After doing some lit review, I am finding that this is no
Hi,
Concerning GSM GMSK demodulation, due to the ISI, I initially thought many
folks were using the Viterbi algorithm on the waveform to demodulate it
properly. After doing some lit review, I am finding that this is not the
case and that when most folks talk about Viterbi concerning GSM GMSK
de
