| 摘要 |
PURPOSE: A positioning system based on a wireless communications device is provided to precisely produce the location of a terminal in a three-dimensional space with just a simple wireless device composition. CONSTITUTION: A positioning system based on a wireless communications device includes a wireless communications device(100), a terminal(200), and a position calculation module. The wireless communications device includes multiple transmission antennas(110a,110b,110c,120) and performs the transmission function of a navigation system. The terminal functions as a reception part of the navigation system and communicates with the wireless communications device bi-directionally or uni-directionally. The position calculation module generates a carrier phase measurement value or a distance measurement value for each antenna using a communications signal received from the terminal and calculates the position of the terminal using this. [Reference numerals] (200) Terminal
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