Constellation Modulator: Difference between revisions
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== Example Flowgraph == | == Example Flowgraph == | ||
This flowgraph modulates random bits with 8-PSK | This flowgraph modulates random bits with 8-PSK. A [[QT GUI Constellation Sink]] is specifically not added to the output because it would show the signal while there is still multiple samples per symbol. | ||
[[File:constellation_modulator_ex.png| | [[File:constellation_modulator_ex.png|600px]] | ||
[[File:constellation_modulator_ex2.png| | [[File:constellation_modulator_ex2.png|600px]] | ||
Revision as of 03:08, 11 March 2019
Hierarchical block for RRC-filtered differential generic modulation. The input is a byte stream (unsigned char) and the output is the complex modulated signal at baseband.
Parameters
Constellation: determines the modulation type, provide a Constellation Object here.
Samples per Symbol: samples per baud >= 2 (float)
Differential Encoding: whether to use differential encoding (boolean)
Excess BW: Root-raised cosine (RRC) filter excess bandwidth (float)
Verbose: Print information about modulator? (boolean)
Log: Log modulation data to files? (boolean)
Example Flowgraph
This flowgraph modulates random bits with 8-PSK. A QT GUI Constellation Sink is specifically not added to the output because it would show the signal while there is still multiple samples per symbol.
