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Walsh Hadamard Inverse (G Dataflow)

Last Modified: January 9, 2017

Computes the inverse of the real Walsh Hadamard transform of a sequence.

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Walsh-Hadamard{x}

The input sequence.

The length of the sequence has to be a power of 2, otherwise this node returns an error.

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error in

Error conditions that occur before this node runs. The node responds to this input according to standard error behavior.

Default: No error

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x

The inverse Walsh Hadamard transform of the input sequence.

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error out

Error information. The node produces this output according to standard error behavior.

Algorithm Definition

If WH{X} denotes the Walsh Hadamard transform of a sequence X and WHI{X} denotes the inverse Walsh Hadamard transform, then:

W H I { W H { X } } = W H { W H I { X } } = X

Furthermore, the following equation is valid:

W H I { X } = 1 n W H { X }

where n is the length of X.

Where This Node Can Run:

Desktop OS: Windows

FPGA: Not supported


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