Wide-area enhancement method for forwarding satellite navigation system

Abstract

A wide-area enhancement method for forwarding satellite navigation systems, involving space technology, building 25-100 forwarding satellite navigation wide-area reference stations, 10-50 receiver monitoring stations, 2 data processing centers and 3 - 4 earth uplink stations. The data processing center centrally processes the code and carrier phase measurement data from the wide-area reference station dual-frequency receiver, and also processes the measurement data from the receiver monitoring station to generate satellite ephemeris vector corrections and master control station signal uplink time delays Correction number, completeness, reliability and other information. The data processing center generates wide-area augmentation system navigation messages from the generated information, arranges them on the original navigation messages, or modulates them on other uplink frequencies in the C-band, and broadcasts them to the augmentation systems in each region with synchronous orbit satellites and inclined orbit satellites. Users, so that users of the forwarding satellite navigation wide area augmentation system can obtain high navigation accuracy, integrity and reliability.

Description

Wide-area enhancement method for forwarding satellite navigation system Technical field The present invention relates to the field of space technology, is a kind of forwarding type satellite navigation system wide-area enhancement method, is to utilize space Satellite-based technology to improve the performance and accuracy of the earth and geospace navigation system. Background technique Transmitting type satellite navigation system is a kind of satellite navigation system of new research and development, can refer to invention patent (patent application No. 200410046064.1), the signal goes up through 6 commercial geosynchronous orbit satellites and 3-4 inclined orbit satellites, and is transmitted to the next Broadcast to the user, so as to realize the user's navigation and positioning. The biggest difference from GPS is the atomic clock as the time reference Set up on the ground, not on a satellite. The ground clock is easy to maintain and adjust, easy to use, not ...

AI Technical Summary

Problems solved by technology

The accuracy, completeness and reliability of forwarding type satellite navig

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