An on-board device, a vehicle communication system, and a direction-of-arrival estimation method are provided. An on-board device transmits signals from a plurality of transmission antennas that are provided for a vehicle at positions that are separate from each other, and performs processing corresponding to a response signal from a portable device that has received the signals. The on-board device includes: a reception unit that receives the response signal via a plurality of reception antennas that are provided for the vehicle at positions that are separate from each other; and an estimation unit that estimates a direction of arrival of the response signal based on a phase difference of the response signal received via the plurality of reception antennas.
ON-BOARD DEVICE, VEHICLE COMMUNICATION SYSTEM, AND DIRECTION-OF-ARRIVAL ESTIMATION METHOD
2021-05-06
Patent
Electronic Resource
English
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