METHOD FOR SIMULTANEOUS MEASUREMENT OF FREQUENCY, PHASE, INITIAL PHASE AND HARMONIC SIGNAL AMPLITUDE Russian patent published in 2020 - IPC G01R23/00 

FIELD: measurement.

SUBSTANCE: method relates to measurement equipment and can be used for simultaneous measurement of frequency, phase, initial phase and amplitude of a continuous harmonic signal based on a set of initial data specified by a large set of discrete readings. Disclosed method comprises discretising an analogue signal, representing a fragment thereof with a triplet of digital codes S₁, S₂, S₃, formed at moments of time t₁, t₂, t₃, is characterized by that the signal representation is generated by a large set of digital codes S_i formed at corresponding time instants t_i, where i is from 4 to N, where N is much more than four, is a row of natural numbers limited by formed set of counts of digital codes, with equal sampling interval of digital codes counts Δt, used for simultaneous determination of signal frequency, initial signal phase, signal phase, signal amplitude.

EFFECT: technical result consists in improvement of accuracy of simultaneous measurement of frequency, phase, initial phase and amplitude of harmonic signal, in the presence of errors in measurement of amplitude in used counts.

1 cl, 2 dwg