Spatial geographic range coding method and GNSS differential enhanced positioning method in global range

A technology of geographic scope and coding method, applied in the field of GNSS differential enhanced positioning, which can solve the problems that cannot be used, shared and served on a global scale, and that GNSS differential enhanced service models and systems cannot be shared and reused. Privacy, the effect of enhancing transmission efficiency

Active Publication Date: 2022-03-25
国汽大有时空科技(安庆)有限公司
View PDF12 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Purpose of the invention: In order to solve the problem that different GNSS differential enhanced service models and systems cannot be shared and reused, let alone be used, shared and served on a global scale, the present invention proposes a global GNSS differential enhanced positioning method , by adopting multi-scale step-by-step spatial range division and unified coding on a global scale, it can be applied to the spatial range division, definition and coding of different GNSS satellite systems and different differential augmentation services

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
  • Spatial geographic range coding method and GNSS differential enhanced positioning method in global range
  • Spatial geographic range coding method and GNSS differential enhanced positioning method in global range
  • Spatial geographic range coding method and GNSS differential enhanced positioning method in global range

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] The technical scheme of the present invention will be further described in conjunction with the accompanying drawings and embodiments.

[0032] With the increasing demand for GNSS high-precision positioning, especially the rapid development of unmanned delivery, autonomous driving and driverless cars, as well as the requirements for functional safety and personal privacy, GNSS differential enhancement services are gradually shifting from PPP, N-RTK to PPP- With the development of RTK, the scope of differential enhancement services is gradually developing from a local or regional scope to a global one. Based on this development trend, the space range (or grid) of the differential augmentation service system of the Global Navigation Satellite System (Global Navigation Satellite System, referred to as GNSS) in the satellite-based augmentation and land-based augmentation systems that the present invention relates to The positioning method of the present invention, the posit...

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 discloses a spatial geographical range coding method and a GNSS differential enhancement positioning method in a global range, and the method comprises the following steps: coding a spatial geographical range in which a current GNSS differential enhancement service is effective based on the spatial geographical range coding method, and obtaining a grid code in a character string form; and analyzing a grid code from the received differential enhancement service, and calculating an effective spatial geographic range of the current GNSS differential enhancement service according to a spatial geographic range coding method.

Description

technical field [0001] The invention belongs to the technical field of global satellite navigation and positioning, and in particular relates to a spatial geographic range encoding method and a global GNSS differential enhanced positioning method. Background technique [0002] In view of the fact that the global satellite navigation and positioning system is affected by relativistic effects, clock errors, satellite ephemeris errors, ionospheric delays, tropospheric delays, multipath errors, and other errors such as earth rotation, antenna phase winding, and antenna phase center errors, etc. Therefore, in the actual GNSS high-precision positioning application, the above-mentioned influencing factors need to be eliminated or corrected. Different GNSS differential augmentation service models and systems have been born in different periods. At present, the widely used GNSS differential augmentation service models and systems mainly include PPP (Precise Point Positioning, PPP for...

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
Patent Type & Authority Applications(China)
IPC IPC(8): G01S19/41G01S19/42G01S19/07
CPCG01S19/41G01S19/42G01S19/07G01S19/071
Inventor 李慧恩李庆建
Owner 国汽大有时空科技(安庆)有限公司
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