(signal processing) A special case of the short-time Fourier transform, used to determine the sinusoidal frequency and phase content of local sections of a signal as it changes over time.

(signal processing) A generalized Fourier transform that performs an orthogonal, symmetric, involutive, linear operation on 2ᵐ real numbers (or complex numbers, although the Hadamard matrices themselves are purely real).

(mathematics) An integral transform closely related to the Fourier transform, but which transforms real-valued functions to real-valued functions.

A transformer used to transfer electrical power from a source of alternating current (AC) power to some equipment or device while galvanically isolating the device from the power source, usually for safety reasons.

An electrical transformer that reduces voltage from an electrical grid before being distributed to customers.

plural of distribution transformer

Synonym of Hadamard transform

(crime) A series of practices and philosophies aimed at rehabilitating perpetrators of crime, especially of interpersonal violence.

plural of Hadamard transform

plural of Walsh transform