| 摘要 |
This process is adapted for at least two groups of antennas (4, 6). A modulated signal is emitted by a first group of antennas (4) whilst the antennas (6) of a second group emit a similar modulated parasitic signal but of less amplitude. An unmodulated signal of an amplitude comprised between the amplitude of the parasitic signal and the amplitude of the signal emitted by the first group of antennas (4) is superposed on the parasitic signal emitted by the antennas (6) of the second group. Application to a free hand system for access and/or starting of an automotive vehicle.
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