CFO Model

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

(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

This flowgraph can be found at Media:Cfo_model.grc

Example Output

Source Files

C++ files

TODO

Header files

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Public header files

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Block definition

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