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Baidou/GPS (Global Positioning System) double-module precise positioning device

A precision positioning and Beidou technology, applied in the field of Beidou/GPS dual-mode precision positioning devices, can solve the problems of large error, lack of positioning function, complex structure, etc., and achieve the effect of reasonable structure, good working performance and accurate positioning

Inactive Publication Date: 2014-03-05
NANJING SANYOU BEIDOU NAVIGATION ENG RES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The positioning devices used in the existing railway transportation and other systems have complex structures, lack of positioning functions, and large errors, which need to be further improved

Method used

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  • Baidou/GPS (Global Positioning System) double-module precise positioning device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0010] A Beidou / GPS dual-mode precision positioning device, comprising a satellite antenna 1, the satellite antenna is connected to an RF front-end device 3 that converts the positioning satellite radio frequency signal into an intermediate frequency signal within the working range of the signal processor through an acoustic surface filter 2, and the RF front-end The device is connected with the signal processing unit 4, and the signal processing unit is connected with the application processing unit 5.

[0011] A low-dropout linear voltage regulator 6 is connected to the line connecting the satellite antenna and the SAW filter.

[0012] The main function of the RF front-end device is to convert the radio frequency signal of the positioning satellite into an intermediate frequency signal within the working range of the signal processor, suppress multipath interference and out-of-band interference as much as possible, and at the same time improve the signal-to-noise (signal and ...

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Abstract

The invention discloses a Baidou / GPS (Global Positioning System) double-module precise positioning device which comprises a satellite antenna, wherein the satellite antenna is connected with a RF (Radio Frequency) front end device through a saw filter; the RF front end device is used for converting a satellite radio frequency signal into an intermediate frequency signal within a working range of a signal processor; the RF front end device is connected with a signal processing unit; the signal processing unit is connected with an application processing unit. The device is reasonable in structure, precise in positioning and good in working performance.

Description

technical field [0001] The invention relates to a Beidou / GPS dual-mode precision positioning device. Background technique [0002] The positioning devices used in the existing railway transportation and other systems have complex structures, lack of positioning functions, and large errors, which need to be further improved. Contents of the invention [0003] The purpose of the present invention is to provide a Beidou / GPS dual-mode precision positioning device with reasonable structure and high positioning accuracy. [0004] Technical solution of the present invention is: [0005] A Beidou / GPS dual-mode precision positioning device is characterized in that: it includes a satellite antenna, and the satellite antenna is connected to the RF front-end device that converts the radio frequency signal of the positioning satellite into an intermediate frequency signal within the working range of the signal processor through an acoustic surface filter. The front-end device is conn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S19/33G01S19/35
CPCG01S19/33G01S19/36G01S19/37
Inventor 陈雷姜剑国杨文彪李建华陆建新金鑫葛秋陈伟周红军
Owner NANJING SANYOU BEIDOU NAVIGATION ENG RES