Method for comparing signals using operator invariant embeddings

摘要

A method for generating an embedding for a signal, which is invariant to an operator, by first measuring the signal with each vector from a set of measurement vectors to produce a corresponding set of coefficients, wherein the measuring compares and transforms each measurement vector and the signal using the operator. A set of one or more matching coefficients according to predefined criteria are selected. Then, the matching coefficients are combined to produce the embedding for the signal, wherein the embedding is operator invariant.