Random Integer Generator (Communications Blockset)

Generate integers randomly distributed in the range [0, M-1]

Library

Data Sources sublibrary of Comm Sources

Description

The Random Integer Generator block generates uniformly distributed random integers in the range [0, M-1], where M is the M-ary number defined in the dialog box.

The M-ary number can be either a scalar or a vector. If it is a scalar, then all output random variables are independent and identically distributed (i.i.d.). If the M-ary number is a vector, then its length must equal the length of the Initial seed; in this case each output has its own output range.

If the Initial seed parameter is a constant, then the resulting noise is repeatable.

Attributes of Output Signal

The output signal can be a frame-based matrix, a sample-based row or column vector, or a sample-based one-dimensional array. These attributes are controlled by the Frame-based outputs, Samples per frame, and Interpret vector parameters as 1-D parameters. See Signal Attribute Parameters for Random Sources in Using the Communications Blockset for more details.

The number of elements in the Initial seed parameter becomes the number of columns in a frame-based output or the number of elements in a sample-based vector output. Also, the shape (row or column) of the Initial seed parameter becomes the shape of a sample-based two-dimensional output signal.

Dialog Box

M-ary number: The positive integer, or vector of positive integers, that indicates the range of output values.
Initial seed: The initial seed value for the random number generator. The vector length of the seed determines the length of the output vector.
Sample time: The period of each sample-based vector or each row of a frame-based matrix.
Frame-based outputs: Determines whether the output is frame-based or sample-based. This box is active only if Interpret vector parameters as 1-D is unchecked.
Samples per frame: The number of samples in each column of a frame-based output signal. This field is active only if Frame-based outputs is checked.
Interpret vector parameters as 1-D: If this box is checked, then the output is a one-dimensional signal. Otherwise, the output is a two-dimensional signal. This box is active only if Frame-based outputs is unchecked.

See Also

randint (Communications Toolbox)

Random Deinterleaver Random Interleaver