Synchronization method and system
AssigneeThales
InventorsMarc TOURET, Thierry MENIGAND, Marc COUTOLLEAU
Life of this patent
Estimating the term…
Abstract
A method of emission of a frequency synchronization signal comprises a first step of determining at least two first emission frequencies respectively associated with at least two first intervals separated temporally by a first duration. The first temporal intervals are of identical duration. The first durations are identical for identical first frequencies and the first durations are different for different first frequencies. The method also comprises a second step of emitting at least one synchronization signal in the first temporal intervals and by using the first frequency, the signal emitted in the first intervals being identical.
Claims20
A method of emission of a frequency synchronization signal, comprising:
- a first step of determining at least two first emission frequencies respectively associated with at least two first intervals separated temporally by a first duration, the said first intervals being of identical duration, the said first durations being identical for identical first frequencies and the said first durations being different for different first frequencies, and
- a second step of emitting at least one synchronization signal in the said first temporal intervals and by using the said first frequency, the signal emitted in the said first intervals being identical.
The method of reception of a frequency synchronization signal emitted by using at least two first frequencies and in two pairs of temporal intervals separated by a different first duration for each frequency, comprising:
- demodulating the signal received, the said demodulation is carried out by using a second frequency
- determining the gap between at least one of the first frequencies and the said second frequency by determination of at least two second temporal intervals in which the energy of the said demodulated signal is a maximum.
Dependencies are inferred from the claim text.