Thales

Thibault De Moegen

Eric Garrido

Bruno Deltour

Yves Singlas

David Lefranc

A method of transmitting information between a plurality of radioelectric stations and an associated transmission network are disclosed. In one aspect, the method transmits information between radioelectric stations, each station including a transmitter and a receiver, the information including NbMot words of data, NbMot being an integer &#x3e;1. The transmission method includes: determining at least one polynomial of degree NbMot&#x2212;1, each of the NbMot coefficients of the polynomial corresponding to a respective word, the polynomial having an indeterminacy, calculating NbRepet polynomial values for the polynomial, NbRepet being an integer &#x3e;1, each polynomial value being calculated for a respective predetermined value of the indeterminacy, transmitting the calculated polynomial values from one radioelectric station to at least one other radioelectric station, receiving polynomial values by the other radioelectric station, and determining, via the other radioelectric station, the NbMot words from a Lagrange interpolation of the received polynomial values.

Method of transmitting information between a plurality of radioelectric stations and associated transmission network

The invention relates to a method for determining a set of frequencies that can be used in a frequency plane for transmitting information between transceivers of a network operating with frequency hopping. One inventive aspect includes determining an initial set of frequencies that can be used, whose variations having a magnitude lower than a threshold, monitoring first and second portions of the frequency plane, the first portion comprising the set of frequencies that can be used, the second portion comprising frequencies that do not belong to that set of frequencies, and subsequently determining a new set of frequencies that can be used. The determination associated with the first portion has a first threshold, and the determination associated with the second portion has a second threshold which is separate from the first.

Method and device for determining a set of frequencies that can be used for transmitting information between radio transceivers of a network operating with frequency hopping

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Gennevilliers, France

Thibault De Moegen