SYSTEM FOR DETECTING POSITION

摘要

PROBLEM TO BE SOLVED: To detect an abnormal value in a position detection result to be corrected, to realize highly precise position detection in a small number of transmitting stations, and to inform a user of a mobile station or a third person of accurate position information. SOLUTION: An advancing direction is estimated based on the plural position detection results in the past, the estimated advancing direction is compared with the position detection results, and the results are canceled or corrected when counted as the abnormal result.