| 摘要 |
The present invention relates to a method for authenticating data packets transmitted by terminals (10) and received by a station (20), each terminal (10) sequentially transmitting data packets in a plurality of different frequency bands according to a predefined sequence of frequency hops that is specific to said terminal, characterised in that it comprises, for a data packet received by the station (20), the steps of: i) measuring (51) the frequency band in which the data packet in question was received; ii) extracting (52) an identification code from said data packet in question; iii) determining (55) a theoretical frequency hop in accordance with the sequence of frequency hops associated with said identification code extracted from the data packet in question; and iv) calculating (56) a frequency hop deviation in accordance with the theoretical frequency hop and the frequency bands measured for the data packet in question and for the preceding data packet. The authentication method (50) comprises a step (58) of determining whether the data packets received sequentially with a single identification code were transmitted by the terminal (10) associated with said identification code in accordance with at least one frequency hop deviation. |
