| 摘要 |
PROBLEM TO BE SOLVED: To provide a unit etc. for computing correction factors of direction sensors and capable of appropriately computing dynamic correction factors in consideration of both the stationary installation angle of a direction sensor and its dynamic changes in the installation angle in the case that correction factors for correcting direction sensor information are to be computed on the basis of the GPS information and direction sensor information before and after and direction changes. SOLUTION: Basic correction factors of the direction sensor information are computed on the basis of the difference between the amount of change in GPS direction and the amount of change in sensor direction before and after direction changes. The basic correction factors are corrected according to the static installation angleαof an detection axis X of the direction sensor 4 to compute static correction factors. The static correction factors are dynamically corrected according to the dynamic installation angleβin the direction of the detection axis X of the direction sensor 4 to compute dynamic correction factors. COPYRIGHT: (C)2007,JPO&INPIT |
