Position measuring system, position measuring unit, and position measuring method

摘要

In a first position measuring unit, a selecting portion selects radio waves containing available position measured information from a plurality of satellites through an antenna. A communicating portion communicates with a second position measuring unit. The first and second position measuring units select radio waves that can be shared therewith. The first and second position measuring units measure their positions using the same set of the selected radio waves. Measured results of the second position measuring unit are transmitted to the first position measuring unit. A calculating portion of the first position measuring unit calculates a relative distance between the first and second position measuring units corresponding to the difference between the measured results of the first and second position measuring units.