G04F10/00—Apparatus for measuring unknown time intervals by electric means
G04F10/06—Apparatus for measuring unknown time intervals by electric means by measuring phase
G—PHYSICS
G01—MEASURING; TESTING
G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
G01R23/02—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage
G01R23/10—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage by converting frequency into a train of pulses, which are then counted, i.e. converting the signal into a square wave
Procede et dispositif d'extraction d'un signal se repetant dans le bruit de plusieurs trames de signaux, et leur application a la telemetrie, et telemetrie comportant le dispositif.