Re: [Discuss-gnuradio] OOK Demodulation

For a general idea of how demodulation is done in gnuradio, take a look at how digital.clock_recovery_mm_ff() is used.

For an idea of how OOK threshold decision is made, grab datasheet for SX1231 chip, and look at OOK demodulator section, which shows how peak detection works (with diagram).

on-off-keying is generally regarded as not the first choice due to noise susceptibility.
But i think it would be useful to experiment with it.

On Thu, Jul 12, 2012 at 12:14 PM, sibar002 <sibar002@ucr.edu> wrote:

Hello,

I have recently been working on an OOK modulation and demodulation block. I
am using GNU Radio 3.6.1. I achieved the OOK modulation by modifying the
digital_constellation.cc file and changing the constellation points to
(1+0j) and (0+0j). The modulation part works well, but I am having trouble
with the demodulation. I am unable to demodulate the information that I am
receiving. I was wondering if any one could tell me why this is happening? I
would greatly appreciate any help or advice. Thank you for your time.

Sam
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