| 摘要 |
PROBLEM TO BE SOLVED: To provide a navigation apparatus by which the sensitivity factor of a gyro sensor is learned surely without erroneously recognizing its magnitude. SOLUTION: The sensitivity factor of a gyro sensor 11 is given to an angle computing device 13 from a factor computing device 14. An angle factor is learned in such a way that anglesθ11,θ12 from the gyro sensor 11 which is being run in two adjacent straight-line sections such as the entrance side and the exit side of a crossing or the like are stored respectively in a first angle storage device 17 and a second angle storage device 18 and that detection azimuthsθ21,θ22 from a GPS receiver 12 are stored respectively in a third angle storage device 19 and a fourth angle storage device 20. An angle from the gyro sensor 11 in a straight-line section is stored in an angle history storage device 16. The factor computing device 14 refers to the angle history computing device 16, an angle difference from the GPS receiver 12 is converted, and the sensitivity factor is learned. |
