ATTITUDE SENSOR UNIT FOR DETECTING THREE-DIMENSIONAL ATTITUDE OF MOVING BODY

摘要

PROBLEM TO BE SOLVED: To solve the problem that when an attitude is detected by using only a vibration-type gyro, a three-dimensional attitude is not detected as long as an absolute three-dimensional attitude is unknown, and that the attitude cannot be detected continuously for many hours due to a noise generated by the gyro and due to an accumulation of errors generated in a digital signal processing operation.;SOLUTION: In an attitude sensor unit, an output signal of the vibration-type gyro is combined with an output signal of an attitude sensor used to detect the absolute three-dimensional attitude, the absolute three-dimensional attitude in a detection start of the absolute three-dimensional attitude is detected, and the attitude is detected continuously for many hours.;COPYRIGHT: (C)2004,JPO