High sensitivity auxiliary positioning system and data processing method thereof

An assisted positioning system and high-sensitivity technology, applied in satellite radio beacon positioning systems, positioning, radio wave measurement systems, etc., to solve problems such as inability to track signals effectively, low signal-to-noise ratio, and single-satellite pseudoranges.

Inactive Publication Date: 2011-06-01
SHANGHAI BEIGA NAVIGATION TECH CO LTD
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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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  • High sensitivity auxiliary positioning system and data processing method thereof
  • High sensitivity auxiliary positioning system and data processing method thereof
  • High sensitivity auxiliary positioning system and data processing method thereof

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Embodiment Construction

[0098] Please refer to accompanying drawings 1, 2, 3, 5, and 6, the positioning system of the present invention is made up of components such as server, interface, antenna, receiver, radio frequency module, constellation, communication network and computer, and the sending end of the positioning system The input and output ends of the reference receiver 9 are connected to the output and input ends of the auxiliary information processing server 10 through the serial port RS232, and the sending end of the auxiliary information processing server 10 is transmitted to the user receiver through wireless signals. The receiving end of 11, the receiving end of the auxiliary information processing server 10 and the receiving end of the user receiver 11 simultaneously receive the signal from the satellite 12 through the antenna, and the system at least includes:

[0099] Collect and save a section of data 7, code phase extracting unit 8 and user receiver 11 modules, each module is combine...

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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 informationextraction 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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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S5/02G01S19/24G01S19/39
Inventor 贾广沂李国通龚相铱陶欢王海翔沈苑陈晓峰杨志群
Owner SHANGHAI BEIGA NAVIGATION TECH CO LTD
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