PSEUDO SATELLITE SYSTEM AND POSITIONING SYSTEM USING IT

摘要

PROBLEM TO BE SOLVED: To surely measure the position even when a positioning object moves at high speed in a positioning system using a pseudo satellite. SOLUTION: A pseudo satellite 110 for dispatching information of an identification code and a transmission time, and a pseudo satellite position information transmission device 120 for transmitting position information of the pseudo satellite are installed on a structure on the ground. Time information of the pseudo satellite and a signal from the pseudo satellite position information transmission device are transmitted to a positioning device 130 on the ground or under the ground. The positioning device calculates the accident position highly accurately at high speed from information from the pseudo satellite, the pseudo satellite position information transmission device and a GPS satellite 140. COPYRIGHT: (C)2004,JPO