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Results tagged with gnuradio
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user 55187
GNU Radio is a free software development toolkit that provides the signal processing runtime and processing blocks to implement software radios.
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Why samples per symbols $\geq 2$ in the GNURadio Constellation Modulator block?
If I use the GNURadio Constellation Modulator block for this, it imposes a lower limit on samples/second. This results in a different bandwidth for the GNURadio graph, than the real system. …
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Why is the bandwidth for this QPSK system larger than expected?
Below is my gnuradio-companion graph.
As you can see the sample rate is 100k, I am modulating with QPSK, and am filtering the waveform (RRC) with the "Excess BW" parameter, at 0.35. …