Satellite positioning method, module and terminal based on RNSS

Abstract

The invention discloses a satellite positioning method based on an RNSS. The satellite positioning method comprises the steps that a time delay value T1 of sending the nth sub-frame in a superframe from a master station to a satellite is obtained; the motion time T2 of the satellite in the period when the nth sub-frame in the superframe is sent from the master station to the satellite is worked out according to the time delay value T1; according to the coordinate value of the satellite and the speed value of the satellite in a broadcast message and the motion time of the satellite, the accurate position coordinate of the satellite is obtained through calculation. By the adoption of the satellite positioning method, the problem that due to the fact that a large deviation already exists between the utilized satellite position in the broadcast message and the actual satellite position when positioning and time service calculation by the Compass-1 satellite system are conducted, the precision of a subscriber machine is influenced is solved. The satellite positioning method has the advantages that the positioning precision and the time service precision are improved. The invention further provides an information processing module and terminal.

Description

technical field [0001] The invention relates to the field of satellite navigation, in particular to an RNSS-based satellite positioning method, processing module and terminal. Background technique [0002] Satellite radio navigation system, the English full name is Radio Navigation Satellite System (abbreviated as RNSS), the user receives the satellite radio navigation signal, completes the distance measurement independently, and calculates the user's position, speed and navigation parameters. The "Beidou No. 1" satellite navigation system is a regional satellite navigation and positioning communication system developed and established by my country. The system uses synchronous orbit satellites for navigation and positioning. Positioning and navigation accuracy also puts forward higher requirements. The position of the geostationary satellite relative to the earth's ground is constant. The satellite itself is always in motion, so the position coordinate value of the satelli...

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art, to provide an accurate calculation method for the position of the Beidou No. The position of the satellite has a large deviation, which affects the accuracy of the user machine, and has the advantage of improving the accuracy of positioning and timing

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