Positioning method, device and system for Beidou navigation system

A navigation system and Beidou satellite technology, applied in the field of navigation, can solve problems such as impossible real-time reminders of vehicle navigators, low positioning accuracy, and failure to meet user positioning and navigation needs, so as to eliminate public error items, improve positioning accuracy, and weaken correlation. The effect of the influence of error

Inactive Publication Date: 2015-06-24
ARKMICRO TECH
View PDF7 Cites 28 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The current problem is that because the positioning accuracy of the Beidou satellite navigation system is about 10 meters, the positioning cannot meet the positioning and navigation needs of users, and the positioning accuracy is low
For example, when a vehicle is driving at an eleva

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Positioning method, device and system for Beidou navigation system
  • Positioning method, device and system for Beidou navigation system
  • Positioning method, device and system for Beidou navigation system

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0040] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary, and are only used to explain the present invention, and cannot be construed as limiting the present invention.

[0041] In the description of the present invention, it should be understood that the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that the terms "connected" and "connected" should be understood in a broad sense, unless otherwise clearly defined and limited. For example, they may be mechanically connected or electrically connected; they may be dire...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a positioning method, device and system for a Beidou navigation system. The method includes the steps of S1, obtaining a first pseudorange between the device and an observation satellite; S2, receiving first ephemeris data transmitted by the observation satellite; S3, receiving pseudorange difference revised data, transmitted by a difference reference station data processing center, of the observation satellite, wherein the pseudorange difference revised data further comprise the age of second ephemeris data, received by the difference reference station data processing center, of the observation satellite; S4, judging whether the age of the second ephemeris data is matched with the age of the first ephemeris data or not; S5, revising the first pseudorange according to the pseudorange difference revised data so as to obtain a second pseudorange if the age of the second ephemeris data is matched with the age of the first ephemeris data; S6, obtaining a first coordinate position according to the second pseudorange and the first ephemeris data. By means of the method, the positioning accuracy can be improved.

Description

technical field [0001] The invention belongs to the technical field of navigation, and in particular relates to a positioning method, device and system for the Beidou satellite navigation system. Background technique [0002] BeiDou Navigation Satellite System (BDS) is a self-developed and independently operated global satellite navigation system being implemented by China. It is committed to providing high-quality positioning, navigation and timing services to global users, and can provide higher Authorized users are required to provide further services, both military and civilian. [0003] At present, there are 14 satellites working in the service area, which are used to provide positioning, speed measurement, and timing services for free, with a positioning accuracy of 10 meters. [0004] The current problem is that because the positioning accuracy of the Beidou satellite navigation system is about 10 meters, the positioning cannot meet the positioning and navigation nee...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G01S19/38G01S19/41
CPCG01S19/38G01S19/41
Inventor 周显文刘俊秀石岭
Owner ARKMICRO TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap