PLL Freq Det

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Implements a PLL which locks to the input frequency and outputs an estimate of that frequency. Useful for FM Demod.

This PLL locks onto a [possibly noisy] reference carrier on the input and outputs an estimate of that frequency in radians per sample

Parameters

(R): Run-time adjustable

Loop bandwidth (R)
The loop bandwidth determines the lock range and should be set around pi/200 2pi/100.
Max freq
Maximum frequency of the carrier in radians per sample
Min freq
Minimum frequency of the carrier in radians per sample

Example Flowgraph

Pll freqdet simple.png

PLL Freq Det can be used to detect the frequency of a (noisy) single tone.

This minimal demo does nothing than allow the user to adjust a Signal Source's frequency, and then estimate the same.

Source Files

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