FM Demod: Difference between revisions
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== Example Flowgraph == | == Example Flowgraph == | ||
Implementing an FM broadcast band receiver is really easy. | |||
[[File:Pluto_FM_fg.png|800px]] | |||
== Source Files == | == Source Files == | ||
Revision as of 15:35, 20 August 2020
Generalized FM demodulation block with deemphasis and audio filtering. This block demodulates a band-limited, complex down-converted FM channel into the the original baseband signal, optionally applying deemphasis. Low pass filtering is done on the resultant signal. It produces an output float stream in the range of [-1.0, +1.0].
Parameters
- Channel Rate
- Incoming sample rate of the FM baseband (integer)
- Audio Decimation
- Maximum FM deviation (default = 5000) (float)
- Deviation
- Input to output decimation rate (integer)
- Audio Pass
- Audio low pass filter passband frequency (float)
- Audio Stop
- Audio low pass filter stop frequency (float)
- Gain
- Gain applied to audio output (default = 1.0) (float)
- Tau
- Deemphasis time constant (default = 75e-6), specify tau=0.0 to prevent deemphasis (float)
Example Flowgraph
Implementing an FM broadcast band receiver is really easy.
Source Files
- C++ files
- TODO
- Header files
- TODO
- Public header files
- TODO
- Block definition
- TODO