SATELLITE NAVIGATION REINFORCEMENT SYSTEM USING ONLY HIGH-RELIABILITY GPS POSITIONING SIGNAL

摘要

PROBLEM TO BE SOLVED: To properly determine reliability of a signal from a GPS satellite.;SOLUTION: A satellite navigation reinforcement system 2 includes: a threshold value calculation section 32 which calculates a monitor threshold for determining whether a value of carrier power to noise power density ratio (C/No) in the case where a pseudo distance is measured on the basis of a signal from a GPS satellite 4 is proper or not; and a pseudo distance determination section 33 which compares the C/No value with the monitor threshold value to determine whether the pseudo distance has a proper precision or not.;COPYRIGHT: (C)2012,JPO&INPIT