| 摘要 |
PROBLEM TO BE SOLVED: To provide a quite new position calculating method for calculating a position without determining a time error. SOLUTION: A mobile phone 1 including a position calculating device calculates satellite information including the satellite position, satellite movement speed, and satellite movement direction of a GPS satellite at position calculation time on the basis of the satellite orbit information. In addition, the mobile phone 1 receives a GPS satellite signal from a GPS satellite in order to calculate the pseudo distance. Then, the position of the mobile phone 1 is calculated on the basis of a calculation expression for calculating the time error included in the position calculation time using the satellite information and the pseudo distance related to the plurality of GPS satellites. In this case, the time error is eliminated from unknown quantities by setting up simultaneous equations of the calculation expressions of the time error related to the plurality of positioning satellites. COPYRIGHT: (C)2010,JPO&INPIT
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