Loading patent…
AssigneeCommissariat A L'energie Atomique Et Aux Energies Alternatives
InventorFrançois Dehmas
Estimating the term…
A method for synchronizing in a receiver an IR-UWB signal including data packets having a first preamble portion of at least two sequences of N pulses spaced by period T and each equal to a reference pulse weighted by a complex coefficient cn, n=0 to N−1 indicating the rank of the pulse in the first sequence, and a second preamble portion of at least two sequences equal to the complex conjugate of the first sequence, includes: considering NP successive samples sn, for n=0 to NP−1, of a slice, of duration NT, of the first and respectively second preamble portion of a received packet, determining the sequence of values x n = c ⌊ n P ⌋ * s n , and respectively the sequence of values y n = c ⌊ n P ⌋ z n , with Ts the sampling period T=P×Ts; determining the frequency fd and fg of the sequence xn and yn, respectively; and computing shift Δf applied to synchronize to the received signal.
A method for synchronizing a telecommunications receiver device, the telecommunications receiver device receiving an impulse radio ultrawide-band (IR-UWB) signal, the IR-UWB signal comprising data packets, a data packet of the data packets comprising a preamble, the preamble comprising a first preamble portion of at least two occurrences of a first preamble sequence of N pulses spaced apart by a period T and that are each equal to a reference pulse weighted by a complex coefficient cn, n=0 to N−1 indicating a rank of a pulse in a first sequence, and the preamble further comprising a second preamble portion of at least two occurrences of a second preamble sequence equal to a complex conjugate of the first sequence, the method comprising synchronizing the telecommunications receiver device to the received IR-UWB signal according the preamble,
A device comprising:
Dependencies are inferred from the claim text.