| 摘要 |
PROBLEM TO BE SOLVED: To provide a position detection system, the arithmetic processings of which are simple for detecting position. SOLUTION: The position detection system includes transmitting the electric wave signal of prescribed intensity from a mobile station 6; extracting at least two antennas 2, 3 from among antennas 2, 3, 4, 5 receiving the electric wave signal from the mobile station 6; deriving each distance up to the mobile station 6 from each antenna 2, 3 corresponding to respective receiving electric power or each direction of the mobile station 6 to each distance; and calculating each distance, up to the mobile station from each extracted antenna 2, 3 or the position coordinate of the mobile station 6 based on each direction. COPYRIGHT: (C)2009,JPO&INPIT
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