Hello, I am quite stuck at a problem, that is, how to demodulate a FM
signal that is NOT in complex form using existing gnuradio blocks. The
quadrature demodulator works only with complex input; I have tried to
build an analytic signal out of my real one, but the result of the
demodulation is then
Matteo Campanella wrote:
Hello, I am quite stuck at a problem, that is, how to demodulate a FM
signal that is NOT in complex form using existing gnuradio blocks. The
quadrature demodulator works only with complex input; I have tried to
build an analytic signal out of my real one, but the
I have tried building the analytic by hilbert, but I think that, because
of the many near DC components of the signal, I do not get a nice
quadrature demod output...I will try with a pll, thanks for the
suggestion!
MC
Matteo Campanella wrote:
Hello, I am quite stuck at a problem, that is, how
On Wed, Apr 05, 2006 at 03:44:59PM +0200, Matteo Campanella wrote:
Hello, I am quite stuck at a problem, that is, how to demodulate a FM
signal that is NOT in complex form using existing gnuradio blocks. The
quadrature demodulator works only with complex input; I have tried to
build an
It will not be possible to recover the signal if the real signal is at
zero IF (and predetection) so we will assume that it is not at zero.
The simplest possible FM detector is a zero crossing counter. That is,
you output a signal that is proportional to the distance between zero
crossings.
