AM Demod

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

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 file

Here

Block definition

TODO