The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 11, 2021
Filed:
Oct. 22, 2018
Airbus Defence and Space Sas, Toulouse, FR;
Benjamin Gadat, Toulouse, FR;
Mehdi Anteur, Toulouse, FR;
AIRBUS DEFENCE AND SPACE SAS, Toulouse, FR;
Abstract
A method () for estimating a frequency shift and a frequency drift affecting a useful signal including a code word formed by a channel encoder, including an analysis phase () including: for two analysis frequency drifts: a compensation () of the analysis frequency drift on the useful signal, an estimation () of the frequency shift on each useful signal obtained after compensation, a selection () of frequency hypotheses, and an estimation phase () including: for each frequency hypothesis: a frequency recalibration () of the useful signal depending on the frequency hypothesis, in order to obtain sample sequences, an evaluation () of the probability of each sample sequence to be a code word of said channel encoder, an estimation () of the frequency shift and of the frequency drift depending on the most probable frequency hypothesis.