VELOCITY CALCULATION DEVICE, VELOCITY CALCULATION METHOD AND NAVIGATION DEVICE

摘要

A velocity calculation device includes a vertical direction acceleration detection unit that is mounted on a mobile object to detect the acceleration of a vertical direction generated corresponding to the unevenness of a surface on which the mobile object moves; a horizontal direction angular velocity detection unit that is mounted on the mobile object to detect the angular velocity around a horizontal axis perpendicular to a direction of travel of the mobile object generated corresponding to the unevenness of the surface on which the mobile object moves; and a velocity calculation unit for calculating the velocity in the direction of travel of the mobile object based on the acceleration of the vertical direction and the angular velocity around the horizontal axis.