Unlock instant, AI-driven research and patent intelligence for your innovation.

A Spacecraft Orbit Determination Method Driven by Multi-source Data

A multi-source data and determination method technology, applied in the direction of instruments, integrated navigators, satellite radio beacon positioning systems, etc., can solve problems such as patents or papers that have not yet been published, and achieve high-precision results

Active Publication Date: 2021-04-23
SHANGHAI AEROSPACE CONTROL TECH INST
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are no published patents or research results for spacecraft orbit determination methods driven by multi-source data for attitude and orbit control systems.

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
  • A Spacecraft Orbit Determination Method Driven by Multi-source Data
  • A Spacecraft Orbit Determination Method Driven by Multi-source Data
  • A Spacecraft Orbit Determination Method Driven by Multi-source Data

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0046]In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is only some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0047] Such as Figure 1-Figure 4 Shown, the present invention provides a kind of spacecraft track determination method based on multi-source data drive, and this method comprises the following steps:

[0048] Step S1. Carry out orbit data preprocessing for GNSS measurement data, and eliminate erroneous data in combination with threshold judg...

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 the orbit of a spacecraft driven by multi-source data, which includes: performing orbit data preprocessing on GNSS measurement data; performing coordinate system conversion on GNSS measurement data; Time maintenance, time compensation for the orbit data obtained by filtering; constructing navigation filtering algorithm, using the calculation result of EKF filter as the main part of the spacecraft orbit determination; converting the inertial system position and velocity information obtained by the spacecraft orbit determination to obtain Instantaneous orbit parameters and orbital root number; stability judgment of navigation filtering based on orbital root number; use orbit recursion algorithm as a backup solution for spacecraft orbit determination; design switching logic between main and backup solutions according to the working status of GNSS measurement system . The invention overcomes the noise error generated by the GNSS measurement system and the influence of the time deviation between satellite platform subsystems, and provides a high-precision space-time reference for the attitude and orbit control system.

Description

technical field [0001] The present invention relates to the application field of spacecraft engineering technology, in particular to a multi-source data-driven spacecraft orbit determination method, and more particularly, a method for obtaining the orbit of a GNSS measurement system (Global Navigation Satellite System, global satellite navigation system). The real-time orbit information and the reference time orbit parameters acquired by the ground measurement orbit use a filtering algorithm or an orbit recursion algorithm to determine the spacecraft orbit; compared with the method of directly using the GNSS system measurement value, the spacecraft orbit determination method designed by the present invention A higher-precision spatio-temporal reference can be obtained. Background technique [0002] The orbit determination of the spacecraft in orbit can be obtained based on the real-time measurement data of the GNSS system or the prediction of the orbit recursion algorithm. ...

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 Patents(China)
IPC IPC(8): G01C21/24G01S19/37G01S19/42
CPCG01C21/24G01S19/37G01S19/42
Inventor 杨盛庆贾艳胜杜耀珂王文妍王禹刘美师王嘉轶吴敬玉
Owner SHANGHAI AEROSPACE CONTROL TECH INST