DISPLACEMENT ANALYZER, GNSS POSITIONING ANALYZER, AND DISPLACEMENT ANALYSIS METHOD

摘要

To provide a displacement analyzer with which it is possible to provide still more useful information pertaining to a position.SOLUTION: An analyzer 3 comprises: a baseline analysis unit 9a for finding observation data by GNSS positioning data acquired in a first cycle from a reference measuring device 2r and a measuring device 2 arranged at a displacement measuring point; a sensor output value acquisition unit 9b for acquiring a sensor output value outputted in a second cycle shorter than the first cycle by a movement detection sensor that moves integrally with a GNSS antenna 8 of the measuring device 2 and outputting one of displacement, speed and acceleration; a first displacement function acquisition unit 21 for finding a first measured value from the observation data; a second displacement function acquisition unit 22 for finding a second measured value from a sensor output value that is the same physical quantity as the first measured value; a correction processing unit 23 for correcting the sensor output value and outputting a sensor output value after correction so that the first and the second measured values at a prescribed timing match each other; and a composite position acquisition unit 15 for finding the displacement of a past displacement measuring point from the measured data and the sensor output value after correction.SELECTED DRAWING: Figure 1