| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a position measurement system, a position measurement device, and a position measurement program, which can perform a sufficiently good position estimation when there are less than four receivable TDOA measurements. <P>SOLUTION: A position measurement system comprises: three or more landmark devices; and a mobile terminal for receiving signals having position information which is transmitted from the landmark devices and indicates the position of each of the landmark devices. The mobile terminal comprises: a sensor, which is incorporated in the mobile terminal, for detecting the movement of the mobile terminal; and a position estimation means for calculating the position of the mobile terminal on the basis of the position information, which is received from each of the three or more landmark devices, and a detected value of the sensor. <P>COPYRIGHT: (C)2013,JPO&INPIT |
