High sensitivity auxiliary positioning system and data processing method thereof

Abstract

A technology relates to a satellite-based navigation positioning system, in particular to a high sensitivity auxiliary positioning system and a data processing method based on mobile communication auxiliary mode and mainly used in a ground receiver system. The system at least comprises a server, an interface, an antenna, a receiver, a code phase extraction unit and user receiver modules, wherein, all modules are combined into an integral receiver. The method realizes positioning service of the entire system under weak signal conditions by means of the modules such as the auxiliary information extraction unit in a user receiver; moreover, the method mainly solves related technical problems such as the organic combination of integral hardware and the realization of data extraction and calculation. The invention has the advantages that: data extraction and user position calculation are realized by means of auxiliary information under the condition of very low signal-to-noise ratio and ineffective signal tracking; moreover, the invention improves the sensitivity index of the user receiver and can enlarge the application range of a navigation positioning system.

Description

technical field [0001] The present invention relates to a technology of a satellite-based navigation and positioning system, especially a positioning method mainly used in a ground receiver system based on a mobile communication auxiliary mode. This satellite-based navigation and positioning system mainly includes the Global Satellite Positioning System (GPS) Positioning System) system and Galileo system, as well as the Beidou positioning system that China is networking. Background technique [0002] Due to the importance of the positioning function of the mobile communication system to people's lives, the cellular network positioning technology is developing rapidly under the promotion of the US Federal Communications Commission (FCC). The FCC's Phase 1 goals have been met and rollout is happening rapidly in many parts of the world. Further improving the accuracy is the main goal of Phase II. To achieve this goal, people have studied the method based on the network and th...

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Problems solved by technology

[0008] The technical problems to be solved by the present invention are: for the requirements of high-precision positioning in indoor areas, mainly solve the overall hardware realization problem of the high-sensitivity auxiliary positioning system; solve the problem of how to obtain high-precision positioning results through the entire hardware system; When the ratio is very low and the signal cannot be effectively tracked, the problem of data extraction and user position calculation should be solved; how to improve the sensitivity index, how to find the pseudo-range of a single satellite and other related technical problems

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