| 摘要 |
PROBLEM TO BE SOLVED: To correctly estimate the progress degree of error estimation, in an observation device for estimating the measurement error and correcting the measurement amount with the estimated measurement error. SOLUTION: Based on distance and the pseudo range or the like observed by a distance change rate observation section 112, an error estimation section 130 estimates the measurement error of speed, angular velocity, or the like measured by a vehicle speed pulse generator 121, a gyroscope 122, or the like, and calculates the estimated error of the estimated measurement error. A progress degree calculation section 151 calculates the progress degree of error estimation based on the estimated error calculated by the error estimation section 130. COPYRIGHT: (C)2008,JPO&INPIT |
