|Subject:||Re: [Discuss-gnuradio] gr-channel: adding ETSI/3GPP channel model taps|
|Date:||Wed, 30 Dec 2015 10:58:00 -0500|
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?
--Am 29. Dezember 2015 22:16:53 MEZ, schrieb Johnathan Corgan <address@hidden>:On Tue, Dec 29, 2015 at 11:50 AM, Marcus Müller <address@hidden> wrote:ETSI TS 145 005 V 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.--
Sent from my Android device with K-9 Mail. Please excuse my brevity.
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