公开(公告)号：US20170139051A1

公开(公告)日：2017-05-18

申请号：US15348211

申请日：2016-11-10

Applicant: THALES

Inventor： Nicolas MARTIN ,  Yves CLAUZEL

IPC: G01S19/23

CPC classification number: G01S19/23 ,  G01S19/21 ,  G01S19/30

Abstract: This determination method for determining a wrong synchronization including the steps of determining an ad hoc correlator corresponding to the value of correlation between the received signal and the local signal, and determining N additional correlators corresponding to the values of correlation between the received signal and an offset signal, each offset signal including a spreading code that is offset in relation to the local spreading code, and determining a value for the amount of inconsistency between the frequency of the local carrier wave and the frequency of the local spreading code; if the value of inconsistency is higher than a predetermined threshold value of inconsistency, determining a wrong synchronization; otherwise, determining an indicator of wrong synchronization as a function of the correlators determined, comparing the indicator of wrong synchronization with at least one threshold value, determining a wrong synchronization based on the result of the comparison.