Supercharge Your Innovation With Domain-Expert AI Agents!

Local airport monitoring method, device and system therefor

A technology for wide-area augmentation systems and airports, applied to measuring devices, radio wave measuring systems, instruments, etc., can solve problems such as increasing user burden and reducing real-time performance, so as to reduce computing burden, improve robustness, and improve real-time performance Effect

Inactive Publication Date: 2009-12-09
BEIHANG UNIV
View PDF0 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the integrity algorithms of the LAM system in the prior art need to be completed by the airborne user itself, which increases the burden on the user and reduces the real-time performance

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
  • Local airport monitoring method, device and system therefor
  • Local airport monitoring method, device and system therefor
  • Local airport monitoring method, device and system therefor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] The technical solutions of the embodiments of the present invention are further described below with reference to the accompanying drawings and specific embodiments.

[0028] With the vigorous development of satellite navigation, countries around the world are building their own satellite navigation systems, such as the GPS system in the United States, the GLONASS system in Russia, and the Galileo system in Europe that is under construction. However, due to the influence of ionosphere, troposphere, multipath effect and thermal noise, as well as the problems of satellite navigation system itself, such as ephemeris error, star clock error, etc., satellite navigation cannot meet the performance required by the system in many applications. index. For example, in the application of the precision approach system of civil aircraft, not only high requirements are placed on the accuracy of satellite navigation, but also on its integrity, continuity and availability.

[0029] In o...

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 local airport monitoring method, a device and a system therefor. The method comprises: receiving satellite data transmitted by each receiver and calculating pseudorange corrected value corresponding to each receiver; selecting any receiver at will as a pseudo onboard user and calculating pseudorange corrected value positioning error of the pseudo onboard user; calculating monitor system positioning error of the pseudo onboard user and calculating to obtain ground monitor protection level of the pseudo onboard user according to the monitor system positioning error and wide area augmentation system (WAAS) information promulgation error; comparing ground monitor protection level of all the satellite combination of the pseudo onboard user and preset alarm limit value of the pseudo onboard user, and outputting the optimal satellite combination according to the comparison result. The invention performs calculation of pseudorange corrected value error and monitor system error on the onboard user by a ground monitor end, finishes selection of the onboard user optimal visible satellite combination by detection of ground monitor protection level, reduces calculation load of onboard user and improves instantaneity.

Description

technical field [0001] Embodiments of the present invention are in the technical field of satellite navigation, and in particular, to a method, device, and system for monitoring a local airport. Background technique [0002] When satellite navigation systems are used in civil aviation, four performance indicators of accuracy, integrity, continuity and availability must usually be met. Among them, accuracy refers to the difference between the measured position of the navigation system and the real position at any time; integrity refers to the ability of the system to issue warnings or shut down in time when the system cannot provide navigation services; continuity refers to the system throughout the flight. The ability to provide services during the process; availability refers to the ability of the system to be used for navigation when required by the user. However, because the current satellite navigation system is usually affected by factors such as the number of availabl...

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): G01S5/02G01S5/14
Inventor 张军朱衍波王志鹏薛瑞李锐
Owner BEIHANG UNIV
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com