| 摘要 |
The present invention relates to a method and a corresponding device for determining the speed of a moving entity carrying at least two antennas for receiving a transmission signal, said antennas being displaced at a predetermined distance. In order to provide a more simple and accurate method which can be used with different transmission signals a method is proposed comprising the steps of:
- receiving a transmission signal by the at least two antennas,
- determining signal characteristics from the transmission signal as received by the at least two antennas,
- determining a time offset between the reception of the transmission signal at the at least two antennas by comparing the signal characteristics determined for the at least two antennas, and
- determining the speed of the moving entity from the determined time offset, the distance of the at least two antennas and the direction of movement of the moving entity relative to the arrangement of the at least two antennas.
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