METHOD AND SYSTEM FOR MEASURING AMPLITUDE AND PHASE DIFFERENCE BETWEEN TWO SINUSOIDAL SIGNALS

摘要

A method and a system for measuring amplitude and phase difference. between two sinusoidal signals, using an adaptive filter. The method generally comprises measuring a sample of an output signal of a system excited by a sample of a reference signal; using an adaptive filter and the sample of the reference signal to determine a and b coefficients that minimize a prediction error on the sample of the output signal, iteratively, using the a and b coefficients.