
From:  Batu Kaplan 
Subject:  Re: [Discussgnuradio] Modulation order of FSK 
Date:  Thu, 2 May 2019 00:27:05 +0300 
Dear Marcus,Thanks for your response. First of all, it is been a while for answering your response and I am sorry about that. I could not try your solution until these days. Unfortunately, I still couldn't get over my problem on MFSK modulation. When I try your solution, "bits to symbols and after that using frequency modulator", I managed to convert bits to integers using the packed to unpacked block. However, after subtracting data from 1.5(for M=4), that point I am stuck. Using frequency modulator will make an FSK modulated signal?If you can still help, I will be appreciated. Thanks in advance.Yours sincerely.Müller, Marcus (CEL) <address@hidden>, 6 Mar 2019 Çar, 23:13 tarihinde şunu yazdı:Really quickly, I need to get going:
with unpackedtopacked (or vice versa) you can convert your bit stream
to integers between 0 and 3. Convert to float, subtract 1.5, use with
frequency modulator?
Best regards,
Marcus
On Wed, 20190306 at 18:14 +0300, Batu Kaplan wrote:
> Hello, Marcus.
> First of all, I'm very grateful for your answer. But how I can make a
> connection between the bits and the "baseband frequency values" that
> you mentioned in the mail?
> For example, I have a 000110 bit series for 4FSK. And then, I think I
> need to pack into 2 bits like 000110. But then how can I turn the
> bits to appropriate form for implement the frequency modulation
> block? After that, am I going to apply to the frequency modulation
> block for each group of symbols? Can you share a flow chart for
> understand better? like file txt > packed >frequency mod >
> sink.
>
> Yours sincerely.
> Batuhan Kaplan
>
> Batu Kaplan <address@hidden>, 5 Mar 2019 Sal, 12:09 tarihinde
> şunu yazdı:
> > Hello, Marcus.
> > First of all, I'm very grateful for your answer. But how I can make
> > a connection between the bits and the "baseband frequency values"
> > that you mentioned in the mail?
> > For example, I have 000110 bit series for 4FSK. And then, I think I
> > need to pack into 2 bits like 000110. But then how can I turn the
> > bits to appropriate form for implement the frequency modulation
> > block? After that, am I going to apply to the frequency modulation
> > block for each group of symbols? Can you share a flow chart for us
> > to understand better? like file txt > packed > frequency mod
> > > sink.
> >
> > Yours sincerely.
> > Batuhan Kaplan
> >
> > Müller, Marcus (CEL) <address@hidden>, 1 Mar 2019 Cum, 21:42
> > tarihinde şunu yazdı:
> > > Hi Batu,
> > >
> > > a really intuitive way of implementing FSKs is to convert your
> > > bit
> > > groups to baseband frequency values (e.g. 1.5, 0.5, 0.5, 1.5)
> > > and use
> > > them with the frequency mod block.
> > >
> > > Best regards,
> > > Marcus
> > >
> > > Marcus
> > >
> > > On Fri, 20190301 at 16:59 +0300, Batu Kaplan wrote:
> > > > I am implementing the binary FSK with GFSK block and I think it
> > > is working correctly. For the next step I want to increase my
> > > modulation order of FSK modulation, like 4FSK and 8FSK,
> > > however, I could not move forward from the file source block. How
> > > can I implement the 4FSK and 8FSK on GNURadio?
>
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