| 摘要 |
PROBLEM TO BE SOLVED: To easily and quickly determine the integral-value bias of a carrier phase without using an antenna swapping method or OTF, and to very precisely find the azimuth/posture of an object or moving body by solving a problem of drift caused by self-supporting sensors for detecting the azimuth and posture. SOLUTION: Based on the quantity of variation in the carrier phase of a positioning signal by the movement of the moving body 100 provided with antennas 11, 21, the proceeding azimuthα' of the moving body is found from the quantity of displacement of a receiving point in an epoch of a predetermined period. The proceeding azimuthα' is considered to be equal to the front azimuth of the moving body, and the antenna azimuthβ' is found from the proceeding azimuthα' and the positional relation of the antennas 11, 21 with respect to the moving body 100. By moreover computing a computed phase difference by the antennas 11, 21, and correcting the difference by an observed phase difference, the integral-value bias of the carrier phase is determined. After that, the absolute azimuth and posture of the moving body 100 are found from the positions of the antennas 11, 21. COPYRIGHT: (C)2005,JPO&NCIPI |
