REAL-TIME KINEMATIC GPS/GLONASS POSITION MEASURING SYSTEM AND INITIALIZATION METHOD FOR REAL-TIME KINEMATIC GPS POSITION MEASURING SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a real-time kinematic GPS/GLONASS position measuring system and an initialization method for a real-time kinematic GPS position measuring system capable of initializing both the system in a short time to allow stable measurement even when an electric wave from a satellite intermit tently arrives because an obstacle partially blocks the sky. SOLUTION: In this initialization method, a satellite on coming information is acquired in advance, a time segment during which the satellites to the number necessary to the initialization for the real-time kinematic GPS/GLONASS position measuring system or the real-time kinematic GPS position measuring system are not blocked by the obstacle 5 at all is selected, and the receiving satellite is selected such that the receiving satellite does not catch intermittently-arriving satellite data caused by the obstacle 5, or the satellite is forcibly brought into a state wherein the electric wave cannot be received.