MOVING OBJECT TRACKING APPARATUS

PURPOSE:To enable measurement of a correct change in bearing of a moving object by correcting a position of the moving object detected sequentially being collated with information on moving path. CONSTITUTION:This apparatus is equipped with a microcomputer 1, a right wheel rotation sensor 2, a left wheel rotation sensor 3, a traction detecting circuit 4 and a digital map memory 7 and the like. Then, when a position of a moving object detected is corrected sequentially being collated with information on moving path, a correct change in bearing of the moving object can be learned from the information on the moving path. When first and second conversion coefficients are set correctly, in alteration of the bearing of the moving object, a change in azimuth of the moving object is given correctly from a running distance of wheels R and L converted from revolutions of first and second wheels R and L and an interval between the wheels R and L. In other words, the first and second conversion coefficients can be set correctly based on a change in azimuth indicated by a position corrected during a specified period and the revolutions of the wheels R and L. This facilitates reading of a change in bearing of the moving object thereby preventing errors.