Random Source

Generates a number of samples of random numbers of [min, max) meaning the max value won't be included. Repeat samples if specified. Useful for creating bytes of information for testing a modulator.

Ex: With min=0 and max=2, the sequence 01110101... of length num_samps will be generated.

Supports an output of type int, short, and byte.

This block differs from Random Uniform Source:

This block uses Numpy to generate a fixed random vector of values. The output of this block repeats every num_samps, and hence has high autocorrelation with that period.
The algorithms used to generate the random numbers differ, as well: Numpy, and hence Random Source, use MT19937¹, whereas the Random Uniform Source uses XOROSHIRO128+, which has a period of 2¹²⁸-1 and is hence to be preferred if autocorrelation over a window of length num_samps is relevant.

Parameters

(R): Run-time adjustable

Param 1 (R)

Description of parameter, provide any tips or recommended values. Note that the name of the parameter above should match the param's label that shows up in grc (e.g. Sample Rate).

Param 2

blah blah blah

Example Flowgraph

Source Files

C++ files

TODO

Header files

TODO

Public header files

TODO

Block definition

TODO

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¹ The slightly superior randomness properties of MT19937 over XOROSHIRO128+ don't matter within the maximum size of a vector of values on a PC, and are generally unnoticable in an SDR contex