A Space Debris Detection Method Based on Inertial Space

A space debris and inertial space technology, applied in photo interpretation, climate sustainability, ICT adaptation, etc., can solve problems such as increasing the probability of false alarms and affecting the success rate of detection, reducing false alarms and improving the success rate of detection. Effect

Active Publication Date: 2022-06-07
ZIJINSHAN ASTRONOMICAL OBSERVATORY CHINESE ACAD OF SCI
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the process of real-time image acquisition by CCD, there are not only error factors from the readout circuit of the CCD itself, but also factors affecting the working environment of the CCD and clouds, which will affect the background fluctuation of the CCD image and affect the detection of space debris. Especially the influence of faint space debris, thus increasing the probability of false alarm and affecting the detection success rate

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 Space Debris Detection Method Based on Inertial Space
  • A Space Debris Detection Method Based on Inertial Space
  • A Space Debris Detection Method Based on Inertial Space

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0037] The present invention will now be described in further detail with reference to the accompanying drawings.

[0038] like figure 1 A space debris detection method based on inertial space is shown, which includes the following working steps: image background estimation; star scan and two-dimensional plane coordinate reduction; three-dimensional space vector reduction; background star removal; space debris detection.

[0039] Input the image of the multi-frame transfer CCD, and follow the above five steps in sequence. Finally, the detection result of the moving target in the image is obtained, which is provided to the servo system in the measurement system, so as to realize the tracking of space debris by the measurement system. A more optimized and more specific description of the above steps is as follows:

[0040] 1. Image Background Estimation

[0041] Comprehensive analysis of images containing space debris and background stars is carried out, and a mathematical mod...

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 space debris detection method based on inertial space, which comprises the following working steps: image background estimation; astrology scanning and two-dimensional plane coordinate reduction; three-dimensional space vector reduction; background star elimination; space debris detection. The present invention abandons the process of relying on two-dimensional plane coordinates to meet a given threshold to eliminate star images, and only relies on the different motion rules of background stars and space debris astrology in inertial three-dimensional space (vectors of adjacent frame stars in inertial space basically coincide or their corresponding The right ascension and declination of the telescope are basically unchanged) and the astrology of background stars is eliminated, which realizes the detection of space debris in different observation modes of the telescope, and is especially suitable for the unstable situation of space debris tracking. According to the given detection threshold, the present invention can flexibly adopt multi-frame CCD images to detect non-stellar targets whose apparent motion speed is faster than that of stars, reduce detection false alarms caused by bright stars and other factors, and improve dim space debris. detection success rate.

Description

technical field [0001] The invention belongs to the technical field of space debris detection, in particular to a space debris detection method based on inertial space. Background technique [0002] In many fields such as scientific research and military, it is necessary to monitor space debris, give the position and change of space debris in the sky at every moment, determine the orbit of space debris, and obtain accurate information of space debris. [0003] The invention of CCD has replaced traditional photographic observation and has become one of the effective means of monitoring space debris, especially for space debris in medium and high orbits. For scientific-grade CCDs, there are usually three readout methods: full frame readout, interline transfer readout, and frame transfer readout. CCDs that use frame transfer and inter-line transfer readout usually have the advantages of small target surface, fast readout speed, and almost no tail-off phenomenon on the readout ...

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
CPCG01C11/04Y02A90/10
Inventor 张晓祥高昕李希宇
Owner ZIJINSHAN 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