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

• Main Authors: IWASAKI RYUICHIRO, NOZAKI YUTAKA
• Format: Patent
• Language: English
• Published: 22.03.2012
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; TESTING

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.