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

Method for determining absolute orbit and relative orbit of formation flight satellite

A method for determining a relative orbit and a technique for determining relative orbits, which are applied in the field of orbit determination of satellites flying in formation to achieve the effect of easy implementation and simple method.

Active Publication Date: 2012-01-18
AEROSPACE DONGFANGHONG SATELLITE
View PDF6 Cites 20 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above research methods have high requirements for measuring equipment: either need to use third-party measuring equipment, or require relative measuring equipment to provide functions such as distance measurement and angle measurement; but for relative and absolute orbit calculations that only rely on relative distance measurement, there is no relevant Research

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 determining absolute orbit and relative orbit of formation flight satellite
  • Method for determining absolute orbit and relative orbit of formation flight satellite
  • Method for determining absolute orbit and relative orbit of formation flight satellite

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0158] The true values ​​of the instantaneous orbital elements of satellite a and satellite b selected in this embodiment at the initial moment are:

[0159]

[0160] The true value of the interstellar distance is figure 2 shown. The calculation input of this embodiment is an inter-satellite pseudorange with a sampling interval of 32s, an average value of 0, and a variance of 3m.

[0161] Applying the method of the present invention to calculate the inter-satellite pseudorange within 4 orbital periods, the estimation of the instantaneous orbital elements of satellite a and satellite b at the initial moment is as follows:

[0162]

[0163] After 10 iterations, the calculated value is as follows:

[0164]

[0165]

[0166] The calculation results of absolute orbital radicals are compared as follows:

[0167]

[0168] The calculation results of relative orbital elements are compared as follows:

[0169] project

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 method for determining an absolute orbit and a relative orbit of a formation flight satellite. According to the method, aiming at a formation flight task of equipment for measuring interstellar relative distance, an absolute orbit number and a relative orbit number of two formation satellites are obtained by resolving a relative measure value of the interstellar distance. The measure value of relative distance is only needed in the resolving process and a third-party signal source is avoided, so that a receiving party of the interstellar distance can separately determine the absolute orbit number and the relative orbit number of the formation flight task without support of a ground tracking telemetry and command station, a GPS (Global Position System) and other auxiliary equipment.

Description

technical field [0001] The invention relates to a method for determining orbits of formation flying satellites. Background technique [0002] Formation flight is an important development direction in the field of small satellites in the future. Multiple satellites complete cluster flights of kilometers to hundreds of kilometers in a certain organizational form, and exchange information with each other to jointly realize tasks such as earth observation and target positioning. [0003] In order to form a stable and effective measurement baseline, each component satellite needs to complete the control of the relative state based on the relative state, and the calculation accuracy of the relative state will be an important factor in determining the success or failure of the formation mission. [0004] The absolute orbit determination of existing formation flying satellites often requires the help of third-party signal sources such as ground stations and global navigation satelli...

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): G01C21/24
Inventor 谭田徐明李延东陶成华蒙薇
Owner AEROSPACE DONGFANGHONG SATELLITE
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