Anju,
Try connecting these
data_src(0,1)==>chunk to symbol(-1,1)==>fm
modulator(sensitivity=(2*pi*(freq_sep/2.0))/samp_rate))
where freq_sep = symb_rate (for non-coherent detection)
On receiver side u can use quadrature demoulator
-Adeel
On Fri, Feb 17, 2012 at 12:42 AM, anju babu <anju.ora...@gmail.com> wrote:
>
> HI all,
>
> I'm developing an underwater modem which uses acoustic signal
> for transmission and reception .for that i need to have a FSK
> modulator.since CPFSk is not practically possible in underwater ,i decided
> to use VCO.I have to modulate data from a file sourc(output type byte)
> using 10khz carrier.i don't know how to do this.when i connected a file
> source -uchar to float- vco -scopesink and observed output i couldn't see
> what i was expecting.can't i input the vco with a file source?please help
> me.
>
> thanks in advance
> ANJU
> --
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>
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