I must admit I did that, but feel unsure about how many sines I'd need to use
to simulate spread.
The result I got with 8 and standard doppler spread don't look overly healthy,
and osmocore/gr-gsm has a hard time understanding noise-free synthetic bcch
bursts after going through the fading model.
Any advice on that?
Best regards,
Marcus
Am 29. Dezember 2015 22:16:53 MEZ, schrieb Johnathan Corgan
<[email protected]>:
>On Tue, Dec 29, 2015 at 11:50 AM, Marcus Müller
><[email protected]>
>wrote:
>
>
>> ETSI TS 145 005 V[1] specifies the relevant GSM channel models.
>>
>> I do have a bit of python code that converts those to 10MS/s sampled
>> FIRs. Should I just add something to gr-channels python code that
>gives
>> you FIR taps for different of these models?
>>
>
>It would be useful to see how well the Annex C tables can be mapped to
>the
>Frequency Selective Fading Model block parameters and do some resulting
>simulations with these. The block simulates the time-varying effects
>of
>doppler and Rician/Rayleigh fading given a power delay profile and
>other
>relevant parameters.
>
>
>--
>Johnathan Corgan
>Corgan Labs - SDR Training and Development Services
>http://corganlabs.com
--
Sent from my Android device with K-9 Mail. Please excuse my brevity.
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