A real-time reference station positioning authentication method and system

Abstract

An instant reference station positioning authentication method provided by the present invention comprises the steps of selecting the fixed reference stations, setting the standard coordinate positions, obtaining the observation data, and calculating a pseudo-range residual error and a carrier phase residual error and transmitting to a reference station scheduling center; carrying out the coarse positioning on the moving stations, and transmitting the coarse positioning results to the reference station scheduling center; using the reference station scheduling center to match the reference stations corresponding to the moving stations; using the moving stations to receive the observation data and the standard coordinate positions to finish the high-precision positioning; using the moving stations to determine whether the moving stations themselves can become or continuously become the instant reference stations; using the reference station scheduling center to authenticate the instant reference stations, and forbidding the functions of the instant reference stations duly. The present invention also provides a system of applying the positioning method, and the system comprises the reference station scheduling center, a plurality of fixed reference stations and moving stations, and a communication link. The instant reference station positioning authentication method of the present invention realizes the high-precision positioning of the moving stations, adjusts the power levels of the reference stations scientifically, and is small in data processing stress when being applied at a large scale.

Description

technical field [0001] The invention specifically relates to an instant reference station location authentication method and system. Background technique [0002] RTK (Real Time Kinematic) technology is a real-time dynamic positioning technology based on carrier phase difference. It is based on real-time processing of carrier phase observations of two stations, and provides 3D positioning results in the specified coordinate system. The real-time positioning accuracy can reach the centimeter level, and has the advantages of good real-time performance and fast speed. The basic principle of RTK is that the reference station and the rover receive satellite signals at the same time, and the reference station transmits the observation data (mainly carrier phase, pseudo-range) and the standard coordinate position of the reference station to the rover through a data link (modem, radio or communication network). Station, the mobile station uses software to reduce the observation err...

AI Technical Summary

Problems solved by technology

Moreover, the complexity of the network RTK technology algorithm and the virtual reference observation value increase with the increase of the number of rover stations, which in turn brings great burden and pressure to the data center server processing and communication network transmission

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