| 摘要 |
A positioning method, which is related to a technique to measure a correct position of a terminal by preventing time required for the position measurement, of calculating a position of a receiver according to signals from a plurality of wireless transmitters includes a first step (S103) of measuring propagation delay time of the signal from each of the wireless transmitters and calculating a position of the receiver and a standard deviation about measuring distance error, a second step (S105) of calculating a positioning error of the receiver a third step (S109) of determining, according to the positioning error calculated by the second step, wireless transmitters in directions nearer to a direction in which the positioning error is large, and a fourth step (S112) of re-detecting signals from the wireless transmitters determined by the third step and thereby re-calculating the position of the receiver. <IMAGE> |
