Walsh-Hadamard Transform Functions

This section describes the functions that perform a discrete Walsh-Hadamard (or Hadamard) transform (WHT) [Mit93].

WHT is a Fourier-related transform. It performs an orthogonal, symmetric, linear operation on real numbers. The computation involves no multiplications.

The WHT is its own inverse, or involutary transform.

WHT
Performs Walsh-Hadamard transform of a real signal.
WHTGetBufferSize
Computes the size of the working buffer for WHT.