Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Satellite visibility analysis method for Beidou differential reference station layout

An analysis method and base station technology, applied in the field of satellite navigation, can solve problems such as difficult to quickly determine the location of base stations

Inactive Publication Date: 2015-03-11
中国人民解放军63961部队 +1
View PDF5 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when operators work in the field, especially in areas with large terrain fluctuations, it is difficult to quickly determine the location of the reference station, so that it not only has better visibility to the satellite, but also maximizes the observation data sent by the radio transmission equipment. Limited coverage of its service area

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
  • Satellite visibility analysis method for Beidou differential reference station layout
  • Satellite visibility analysis method for Beidou differential reference station layout
  • Satellite visibility analysis method for Beidou differential reference station layout

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0008] see Figure 1-Figure 3 , the satellite visibility analysis method in a kind of Beidou differential reference station layout of the present invention, comprises the following steps:

[0009] (1) Use the almanac data to calculate the altitude angle of the satellite according to the conventional algorithm ;

[0010] (2) Calculate the coordinates of the intersection of the reference station to the satellite direction and the boundary of the DEM effective data ;

[0011] DEM effective data range segmentation diagram is as follows figure 2 Shown:

[0012] The rectangular area is the DEM effective data range Rect (Top, Right, Bottom, Left); , , , Divide the DEM data into four ranges; satellites 1-4 respectively represent the satellites to be analyzed that fall within these four data ranges, , , , are the intersection points of the direction from the base station to the satellite and the boundary of the DEM data; the coordinates of the base station are Vi...

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 satellite visibility analysis method for Beidou differential reference station layout. The method is used for calculating the satellite visibility of a reference station at some moment through DEM (Digital Elevation Model) data and almanac data. The method comprises the steps: (1) calculating the azimuth angle alpha and altitude angle beta of a satellite; (2) calculating the coordinates P of a point of intersection between the direction from the reference station to the satellite and a DEM valid data boundary; (3) calculating the coordinates of a barrier point; (4) calculating the altitude angle of the barrier point; (5) judging satellite visibility. By the method, on-graph previewing work can be carried out on reference station layout, and the method has the advantages of simplicity and practicability.

Description

technical field [0001] The invention relates to the field of satellite navigation, in particular to a satellite visibility analysis method based on calculating satellite altitude angles based on almanacs and DEM data. Background technique [0002] RTK (RealTime Kinematic) is real-time dynamics, which is a real-time differential measurement technology based on carrier phase observations. Real-time transmission to the mobile station through the radio transmission equipment, while the receiver of the mobile station receives the satellite signal, it also receives the observation data from the reference station through the radio receiving equipment. According to the principle of relative positioning, the coordinates of the mobile station can be calculated in real time. However, when operators work in the field, especially in areas with large terrain fluctuations, it is difficult to quickly determine the location of the reference station, so that it not only has better visibility ...

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): G06F19/00
Inventor 任曦明高宏王立兵李博康习勇王静静薛光辉贾永军时荔蕙杨丽博杨涛朱保华
Owner 中国人民解放军63961部队
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com