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

A method for determining initial orbits of space targets under virtual coplanarity constraints

A technology for determining spatial objects and methods, which is applied in the interpretation of photos, etc., and can solve problems such as the joint adjustment of multi-frame images that cannot realize the calculation of spatial object positions

Active Publication Date: 2020-11-03
SUZHOU ZHONGKE IMAGE SKY REMOTE SENSING TECH CO LTD
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the process of space target detection, the observation platform and the space target move at the same time, so the joint adjustment of multi-frame images based on the traditional photogrammetry method cannot realize the position calculation of the space target

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 method for determining initial orbits of space targets under virtual coplanarity constraints
  • A method for determining initial orbits of space targets under virtual coplanarity constraints
  • A method for determining initial orbits of space targets under virtual coplanarity constraints

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0063] The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments. The embodiments described in the present invention are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by persons of ordinary skill in the art without making creative efforts all fall within the protection scope of the present invention.

[0064] The invention establishes an observation platform motion compensation algorithm based on affine transformation, and constructs a static virtual coplanar condition observation model and a space-time joint initial orbit determination algorithm under the support of geometry and dynamics theory.

[0065] A method for determining the initial orbit of a space target under the constraints of a virtual coplanar condition according to the present invention comprises the following steps:

[0066] Step A: Use 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 discloses a method for determining an initial orbit of a spatial target under the constraint of a virtual coplanar condition, and belongs to the field of surveying and mapping science and technology. The method comprises the steps of extracting a fixed star trail equation based on a star map, and carrying out motion compensation on an observation platform by utilizing a six-parameteraffine transformation model to acquire image plane coordinates of a target star under a virtual static observation condition; by utilizing an imaging geometrical relationship between the observationplatform and the target star which are coplanar under the virtual static observation condition, building a virtual static coplanar condition observation model, and calculating a spatial position of the target star; and establishing a time-space domain combined initial orbit determination algorithm, and calculating the number of target orbits. The virtual static coplanar condition observation modelconverts the "dynamic-to-dynamic" orbit estimation problem into the "static-to-dynamic" satellite dynamic photography measurement problem, and solves the difficult problem of no distance measuring data in detection of a space-based visible light camera (SBV).

Description

technical field [0001] The invention belongs to the technical field of photogrammetry, and in particular relates to a method for determining the initial trajectory of a space object under the constraint of a virtual coplanar condition. Background technique [0002] After years of development, the on-orbit measurement of space targets has formed a complete and effective theoretical system. The on-orbit measurement of space targets using angle observation information is divided into initial orbit determination and orbit improvement. Among them, the initial orbit determination of two-body dynamics constraints mainly includes Gaussian method, Laplace method and double r iteration method, etc., based on perturbation theory The orbital improvement of the method mainly includes the least squares method and the filtering method. Orbit calculation is considered to be a deterministic problem, but it is necessary to give the initial epoch orbit elements, and then obtain the relative d...

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): G01C11/04
CPCG01C11/04
Inventor 盛庆红杨锐王博肖晖洪然
Owner SUZHOU ZHONGKE IMAGE SKY REMOTE SENSING TECH CO LTD
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