CFO Model

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This block implements a carrier frequency offset model that can be used to simulate carrier frequency drift typically from mixer LO drift on either transmit or receive hardware.

A clipped gaussian random walk process is used.

Parameters[edit]

(R): Run-time adjustable

Sample rate Hz (R)
Sample rate of the input signal in Hz
CFO standard deviation (Hz per sample) (R)
Desired standard deviation of the random walk process every sample in Hz
Max CFO bound Hz (R)
Maximum carrier frequency deviation in Hz.
Seed
A random number generator seed for the noise source.

Example Flowgraph[edit]

This flowgraph can be found at Media:Cfo_model.grc

Cfo model fg.png

Example Output[edit]

Cfo model out.png

Source Files[edit]

C++ files
TODO
Header files
TODO
Public header files
TODO
Block definition
TODO