PRECISION POSITIONING SYSTEM, PRECISION POSITIONING DEVICE, AND PRECISION POSITIONING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a precision positioning system capable of minimizing a multi-path error in calculating an observation distance.;SOLUTION: A precision positioning system includes a reference point Rs0 and plural observation points Rsa. A reference station performs: obtaining a reference point observation distance and a reference point calculation distance by using a GPS signal received at the reference point Rs0, so that an individual observation station obtains an observation point observation distance and observation point calculation distance by using a GPS signal received at each respective observation point Rsa (S101); calculating a double difference between the reference point Rs0 and the observation point Rsa (S102); calculating an average value of the calculated plural double differences (S103); and calculating a single difference in inter-satellite observation distance and adds the average value of the double difference, to correct the single difference in the inter-satellite observation distance so as to minimize a multi-path error (S104).;COPYRIGHT: (C)2014,JPO&INPIT