10 results about "Hadamard transform" patented technology

The Hadamard transform (also known as the Walsh–Hadamard transform, Hadamard–Rademacher–Walsh transform, Walsh transform, or Walsh–Fourier transform) is an example of a generalized class of Fourier transforms. It performs an orthogonal, symmetric, involutive, linear operation on 2 real numbers (or complex numbers, although the Hadamard matrices themselves are purely real).