PROCEDURE AND APPLIANCE FOR MEASURING SIGNAL CHALLENGES.

摘要

Procedure for measuring the offset (º) between a first and a second signal, which comprises the steps of offsetting the first signal (u1) in frequency a shifting frequency (f0), superimposing the first shifting frequency signal and the second signal (u2), determine an envelope signal (w) of the superimposed signal (v), and measure the offset (º) of the envelope signal (w) at the offset frequency (f0), or a multiple of the same, with respect to the phase of the displacement frequency (f0), characterized by the fact that the offset (º) is measured by determining a Fourier coefficient (X) of the envelope signal (w) at the frequency of displacement (f0) and extracting its phase.