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From: | Marcus Müller |
Subject: | Re: [Discuss-gnuradio] samples/symbols CPFSK |
Date: | Thu, 21 Jul 2016 21:38:40 +0200 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.1.1 |
Hi Olivier, as discussed, an FSK with 1 S/symbol is not really much of an FSK; so I can't really confirm that it does what you want (it does do some DPSK, in fact). When you decimate something by a factor of six, the resampler has to choose a filter that kills the upper 5/6 of the spectrum, inevitably damaging your signal, if your max deviation is more than 1/6 of the nyquist rate. So that's definitely not what you want to do! As usual, I recommend adding spectrum sinks at practically every
point in your flow graph and check whether the signal there looks
correct, according to your signal model. Best regards, Marcus On 21.07.2016 21:15, Olivier Goyette
wrote:
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