GFSK Demod

Hierarchical block for Gaussian Minimum Shift Key (GFSK) 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 >= 2 (integer)

Sensitivity

Given to the Quadrature Demod

Gain Mu

Controls rate of mu adjustment

Mu

Fractional delay [0.0, 1.0]

Omega Relative Limit

Sets max variation in omega (float, typically 0.000200 (200 ppm))

Freq Error

Bit rate error as a fraction

Verbose

Print information about modulator?

Log

Print modualtion data to files? (bool)

Example Flowgraph

Insert description of flowgraph here, then show a screenshot of the flowgraph and the output if there is an interesting GUI. Currently we have no standard method of uploading the actual flowgraph to the wiki or git repo, unfortunately. The plan is to have an example flowgraph showing how the block might be used, for every block, and the flowgraphs will live in the git repo.

Source Files

Python files

[1]

Block definition

[2]