AM Demod

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Revision as of 18:18, 26 October 2019 by Duggabe (talk | contribs) (add Example Flowgraph)
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Generalized AM demodulation hierarchical block with audio filtering.

This block demodulates a band-limited, complex down-converted AM channel into the the original baseband signal, applying low pass filtering to the audio output. It produces a float stream in the range [-1.0, +1.0].

Parameters

(R): Run-time adjustable

Channel rate
Incoming sample rate of the AM baseband (integer) <- There is a mismatch bewteen GRC definition and code documentation about int or float, please check that.
Audio decimation
Input to output decimation rate
Audio pass
Audio low pass filter passband frequency
Audio stop
Audio low pass filter stop frequency

Example Flowgraph

This flowgraph shows the use of an AM Demod block to implement an AM broadcast receiver.

FunCube AM.png

Source Files

Python file
Here
Block definition
TODO