Position calculation method

Abstract

To provide a position calculation method capable of reducing a calculation error even when a measuring position suddenly changes in a short period of time.SOLUTION: A three-dimensional spatial position of at least one reference point is calculated at different times by using signals from a plurality of artificial satellites 5 of a global positioning satellite system 1. In the at least one reference point, a plurality of base lines are constructed connecting (i) a position of a reference point at each time identified by the different times and a three-dimensional spatial position at each time and (ii) a position of a measuring point identified by one time of the different times and a three-dimensional spatial position at the one time on four-dimensional coordinates. The position of the measuring point at one time on the four-dimensional coordinates is calculated on the basis of the plurality of constructed base lines.SELECTED DRAWING: Figure 1

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