| 摘要 |
PURPOSE:To enable correcting of velocity and direction obtained by a velocity sensor and a direction sensor exactly and easily and measuring of its position exactly. CONSTITUTION:The present azimuth thetah detected with an azimuth sensor 12 is corrected using the vector component of the present velocity Vg and the present velocity Vh detected with a velocity sensor 10 is corrected using the present velocity Vg or the present position Pg obtained with a GPS receiver. |
