METHOD FOR CORRELATING A RECEIVED SATELLITE RADIO-NAVIGATION SIGNAL AND CORRELATION DEVICE IMPLEMENTING THE METHOD

A method is provided for correlating a received satellite radio-navigation signal made up of a first pilot signal modulated with a first spreading code and a second data signal modulated with a second primary spreading code of a length equal to that of the first spreading code, the second data signa...

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Bibliographic Details
Main Authors RAIMONDI MATHIEU, FERNET CHARLES, AL BITAR HANAA
Format Patent
LanguageEnglish
Published 20.08.2015
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION
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Summary:A method is provided for correlating a received satellite radio-navigation signal made up of a first pilot signal modulated with a first spreading code and a second data signal modulated with a second primary spreading code of a length equal to that of the first spreading code, the second data signal being further modulated with a secondary sequence comprising a plurality of chips, the duration of a chip being equal to a multiple of the length of the second primary spreading code, the first pilot signal and the second data signal being synchronous. The correlation method comprises the following steps: first correlations, over a plurality N of periods of the first spreading code, of the radio-navigation signal with the first spreading code; the selection, out of the N first correlations, of a subset containing a number M of correlations; and the coherent integration of the M correlations of the subset.
Bibliography:Application Number: US201514622615