GMSK Demod

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Hierarchical block for Gaussian Minimum Shift Key (GMSK) demodulation.

The input is the complex modulated signal at baseband.

The output is a stream of bits packed 1 bit per byte (the LSB)

Parameters

Samples/Symbol
Samples per baud
Gain Mu
Controls rate of mu adjustment
Mu
Fractional delay [0.0, 1.0]
Omega Relative Limit
Sets max variation in omega
Freq Error
Bit rate error as a fraction
Verbose
Print information about modulator?
Log
Print modulation data to files?

Example Flowgraph

This is an example flowgraph modified from https://github.com/gnuradio/gnuradio/blob/main/gr-channels/examples/demo_gmsk.grc to use a GMSK Demod block GMSK loopback.png

Source Files

Python files
[1]
Block definition
[2]