IMPROVED SIGNAL DETECTION AND CHARACTERIZATION

摘要

A method and system for detecting and characterizing an input signal receive a signal having an in-phase (I) component and a quadrature -phase (Q) component. A first IQ sample of the signal is acquired at a first point in time, and a second IQ sample of the signal is acquired at a second point in time, Using one or more processors, a delayed complex conjugate multiply (DCM) is applied to the first IQ sample of the signal and the second IQ sample of the signal to produce a constant product having an in-phase (I C ) component and a quadrature-phase (Q c ) component. A signal magnitude and a signal frequency are determined from the I c component of the constant and the Q c component of the constant, using the one or more processors.