| 摘要 |
PROBLEM TO BE SOLVED: To provide multi-antennas having dummy antennas, which eliminate the need for correction processing so as to facilitate position decision processing and can make the processing speed faster through the simplification. SOLUTION: A lane marker system comprises a lane marker, provided on a road and a vehicle-side detector mounted on a vehicle and receiving the signal from the lane marker, so as to detect the position of the vehicle on the road by using electromagnetic induction coupling. An antenna part on the vehicle-side detector has horizontal multi-antennas and dummy antennas.
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