Method for estimating and correcting a drift between clocks of receiving transceiver and a corresponding emitting transceiver, and receive for implementing said method
Method for estimating and correcting a frequency offset between a local clock of a receiving transceiver and a remote clock of an emitting transceiver comprises receiving by said receiving transceiver, a signal emitted by the emitting transceiver, said signal lacking a continuous sinusoidal carrier and having at least one symbol, each symbol being emitted within a time frame having a first duration sampling the signal by taking for each time frame a set of energy measurements of said signal forming a matrix representative of said energy measurements determining from said energy matrix, points of maximum of energy within each time frame determining a line connecting a plurality of said points within each of said time frames determining a slope of said line calculating a frequency offset between the clocks of the emitting and receiving transceivers using the slope and adjusting the receiving transceiver's clock frequency according to the frequency offset.
42111865
Alternative title(s) : (de) Verfahren zur schätzung und korrektur einer taktabweichung zwischen den uhren eines empfangenden sende- und empfangsgerätes und eines zugehörigen sendenden sendegerätes, sowie empfänger zum implementieren des verfahrens (fr) Procédé d'estimation et de correction d'un décalage entre les horloges d'un émetteur-récepteur recevant et d' un émetteur correspondant, et récepteur pour la mise en oeuvre dudit procédé (en) Method for estimating and correcting a drift between clocks of a receiving transceiver and a corresponding emitting transceiver, and receiver for implementing said method
TTO:6.0857
Patent number | Country code | Kind code | Date issued |
US8396175 | US | B2 | 2013-03-12 |
EP2290870 | EP | B1 | 2012-12-05 |
US2011051847 | US | A1 | 2011-03-03 |
EP2290870 | EP | A1 | 2011-03-02 |