Constellation Modulator

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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

Constellation modulator ex.png

Constellation modulator ex2.png