QT GUI Constellation Sink: Difference between revisions
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The sink supports plotting streaming complex data or messages. The message port is named "in". The two modes cannot be used simultaneously, and should be set to 0 when using the message mode. GRC handles this issue by providing the "Complex Message" type that removes the streaming port(s). | The sink supports plotting streaming complex data or messages. The message port is named "in". The two modes cannot be used simultaneously, and should be set to 0 when using the message mode. GRC handles this issue by providing the "Complex Message" type that removes the streaming port(s). | ||
There are | There are many parameters across three tabs, most of them self-explanatory. | ||
Example Flowgraph | == Example Flowgraph == | ||
This flowgraph creates a BPSK signal with 4 samples per symbol, then adds noise to simulate an AWGN channel, then performs timing synchronization and displays the constellation (aka IQ plot) | This flowgraph creates a BPSK signal with 4 samples per symbol, then adds noise to simulate an AWGN channel, then performs timing synchronization and displays the constellation (aka IQ plot) | ||
[[File:Constellation-ex.png|700px]] | [[File:Constellation-ex.png|700px]] | ||
Latest revision as of 17:27, 13 May 2024
A graphical sink to display the IQ constellation of multiple signals.
The sink supports plotting streaming complex data or messages. The message port is named "in". The two modes cannot be used simultaneously, and should be set to 0 when using the message mode. GRC handles this issue by providing the "Complex Message" type that removes the streaming port(s).
There are many parameters across three tabs, most of them self-explanatory.
Example Flowgraph
This flowgraph creates a BPSK signal with 4 samples per symbol, then adds noise to simulate an AWGN channel, then performs timing synchronization and displays the constellation (aka IQ plot)
