METHOD, DEVICE AND SYSTEM FOR ESTIMATING USER POSITION BY SATELLITE POSITIONING SYSTEM WITH WEAK SIGNAL STATE

摘要

PROBLEM TO BE SOLVED: To provide a determination method of receiver position capable of more precisely and more quickly determining a receiver position by calculation. SOLUTION: This determination method of receiver position comprises a process for including the arrival time of a system as independent variable in addition to individual and additive variables of a pseudo distance function to each of ranging codes and a receiver position; a process for estimating the flying time of the ranging codes and the repeat part of pseudo distance to each of the ranging codes; a process for receiving information for a satellite that is not the satellite position on the satellite track but sufficient to determine the track of the satellite; and a process for determining a solution in order to simultaneously obtain the receiver position and the arrival time of the system.