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From: | Adeel Anwar |
Subject: | Re: [Discuss-gnuradio] FSK using VCO |
Date: | Fri, 17 Feb 2012 04:33:56 -0800 |
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
-AdeelOn Fri, Feb 17, 2012 at 12:42 AM, anju babu <address@hidden> 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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