Satellite positioning method and satellite positioning system

US10928520B2 · kind B2 · utility

Assignees

• Shanghai Astronomical Observatory, Chinese Academy of Sciences · CN
• Jianhua Zhou · CN
• Bo Tang · CN

Inventors

• Jianhua Zhou · Campbell, US
• Junping Chen · Zhuhai, CN
• Bo Tang · Lo Wu, CN
• Yize Zhang · Shanghai, CN
• Yueling Cao · Shanghai, CN

Key dates

• Filing date: Dec 11, 2018
• Grant date: Feb 23, 2021
• Expiry date: Jun 30, 2039

Classification

• Technology area (CPC G): Physics
• CPC primary: G01S19/40
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

The present application provides a satellite positioning method and a satellite positioning system. The system includes a satellite, a base station, an observation station. The observation station is provided with a monitoring terminal and a correction parameters information generating apparatus, the monitoring terminal receiving observation data transmitted from the satellite; the correction parameters information generating apparatus generating a correction parameters based on the observation data, the correction parameters being transmitted to the base station. The base station is provided with a switch and a message parameter superimposition-encoding-and-broadcasting apparatus, the switch receiving a basic navigation message from the satellite; the message parameter superimposition-encoding-and-broadcasting apparatus encoding the correction parameters into the basic navigation message by protocol superimposition, and setting the broadcasting of the integrated-encoded message into which the correction parameters is encoded, the integrated-encoded message being transmitted to the satellite by the switch via an uplink injection link.