A power supply system configured to quickly set a phase capable of increasing power received by a power receiving device, a power supply system, and a power supply method are provided. The power supply system includes a power supply device, and a first pow...

An antenna device includes circuitry configured to determine a first distance between a marker center and a fisheye lens, based on a first elevation angle and a coordinate of a marker along a third axis, determine second distances between the fisheye lens,...