公开(公告)号：US20030072361A1

公开(公告)日：2003-04-17

申请号：US10273016

申请日：2002-10-16

Applicant: STMicroelectronics S.A.

Inventor： Patrick Simeoni

IPC: H04Q001/20 ,  H04B003/46

CPC classification number: G11B7/0901 ,  H04L7/0334 ,  H04L2007/047

Abstract: A method for measuring with a maximum error E the phase of a substantially sinusoidal signal, of angular frequency nullnull2null/T, sampled with a sampling period T/r, in which the phase is calculated as the time at which a straight line crossing two consecutive samples located on either side of a median value of the signal reaches said value, including the step of selecting number r from a range included between a value r0 and a value equal to from two to three times value r0, such that: 1 E null max t null [ - T r0 , 0 ] null [ t - T r0 null round null ( G null sin null null null null null null null t ) round null ( sin null [ G null null null t + 2 null null r0 ] ) - round null ( G null sin null null null null null null null t ) ] round(x) being the integer closest to a real number x and G being equal to 2iG1, where i is the number of bits on which are coded the samples and where G1 is a term of correction of the amplitude of the sampled signal.