Method for calculating broadcast ephemeris and clock error parameters of regional navigation satellite system

A technology for a navigation satellite system and a satellite system, which is applied in the field of broadcast ephemeris and clock error parameter calculation of regional navigation satellite systems, can solve the problems of low satellite orbit accuracy, constant deviation of satellite clock error parameters, etc., so as to reduce the correlation and improve the Accuracy, the effect of increasing self-consistency

Pending Publication Date: 2022-02-11
SHANGHAI ASTRONOMICAL OBSERVATORY CHINESE ACAD OF SCI +2
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] In order to at least partially solve the problems in the prior art that the satellite clock error parameters have constant deviations and the satellite orbit accuracy is low and the satellite orbit accuracy is significantly

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
  • Method for calculating broadcast ephemeris and clock error parameters of regional navigation satellite system

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0033] It should be noted that each component in the drawings may be exaggerated for illustrative description, and it is not necessarily a ratio. In each of the drawings, the same components as the same or functionally equipped with the same reference numerals.

[0034] In the present invention, unless otherwise indicated, "arranged in ...", "arranged above" and "arranged above" and "above" are not excluded from the case where there is an intermediate. In addition, "arranged on or above" only indicates the relative positional relationship between the two components, and in a certain case, if it is reversed in the direction of the product, it can also be converted to "arranged under or below", but also Hereaway.

[0035] In the present invention, each of the embodiments are intended to illustrate the aspects of the invention, and it is not to be construed as limiting.

[0036] In the present invention, unless otherwise indicated, the quantifier "one", "a" "one" does not exclude the...

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 relates to the technical field of satellite navigation, and provides a method for calculating broadcast ephemeris and clock error parameters of a regional navigation satellite system, which comprises the following steps of: observing in an L wave band to obtain satellite-ground two-way time synchronization observation data and pseudo-range phase observation data of the L wave band; preprocessing and comparing the satellite-ground two-way time synchronization observation data to calculate a satellite-ground two-way measurement clock error; performing data preprocessing on the pseudo-range phase observation data, and deducting the satellite-ground bidirectional measurement clock error to obtain clock error-free distance measurement data; carrying out multi-satellite statistical orbit determination based on the distance measurement data without the clock error so as to obtain orbit parameters; determining a broadcast ephemeris of a regional navigation satellite system by using the satellite initial orbit and solar radiation pressure empirical parameters; and deducting a constant deviation from the satellite-ground two-way measured clock error, and forecasting the clock error to determine the clock error of the regional navigation satellite system.

Description

technical field [0001] The present invention generally relates to the technical field of satellite navigation. Specifically, the present invention relates to a method for calculating broadcast ephemeris and clock error parameters of a regional navigation satellite system. Background technique [0002] Under the circumstances that my country's current economic foundation is weak and technology accumulation is insufficient, and it is difficult to directly construct a global navigation satellite system, it is possible to deploy GEO satellites (geostationary orbit satellites), IGSO satellites (inclined geosynchronous orbit satellites) and MEO satellites by launching a small number of satellites. (Satellites in the Earth’s middle circular orbit) form a mixed constellation to construct a regional satellite navigation system to provide land, sea and air navigation and positioning services for the military and civilians in the region, so as to meet the needs of national security, eco...

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): G01S19/27
CPCG01S19/27
Inventor 周善石胡小工刘利唐成盼曹月玲郭睿刘金获李晓杰刘帅杨宇飞郭靖蕾蒲俊宇
Owner SHANGHAI ASTRONOMICAL OBSERVATORY CHINESE ACAD OF SCI
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