Results 11 to 20 of about 42,876 (257)

Development of the First Portuguese Radar Tracking Sensor for Space Debris

open access: yesSignals, 2021
Currently, space debris represents a threat for satellites and space-based operations, both in-orbit and during the launching process. The yearly increase in space debris represents a serious concern to major space agencies leading to the development of ...
João Pandeirada   +6 more
doaj   +1 more source

Dim Staring Debris Targets Detection Method with Dense Long Trailing Star

open access: yesApplied Sciences, 2023
With the gradual increase in spacecraft in orbit, space debris monitoring has become the key to the sustainable development of space missions. A staring debris detection method is proposed for high-density stars with long tails.
Jiyang Yu   +4 more
doaj   +1 more source

Enhancing Spatial Debris Material Classifying through a Hierarchical Clustering-Fuzzy C-Means Integration Approach

open access: yesApplied Sciences, 2023
This paper presents a novel approach for clustering spectral polarization data acquired from space debris using a fuzzy C-means (FCM) algorithm model based on hierarchical agglomerative clustering (HAC).
Fengqi Guo   +6 more
doaj   +1 more source

Distributed Space Debris Tracking with Consensus Labeled Random Finite Set Filtering

open access: yesSensors, 2018
Space debris tracking is a challenge for spacecraft operation because of the increasing number of both satellites and the amount of space debris. This paper investigates space debris tracking using marginalized δ -generalized labeled multi ...
Baishen Wei, Brett Nener
doaj   +1 more source

Daylight space debris laser ranging

open access: yesNature Communications, 2020
Space debris laser ranging is a technique to measure distances to defunct satellites or rocket bodies in orbits around Earth which was only possible within a few hours around twilight.
Michael A. Steindorfer   +5 more
doaj   +1 more source

Infrared Detection Method for Hypervelocity Impact Based on Thermal Image Fusion

open access: yesIEEE Access, 2021
As the number of space debris has increased rapidly in recent years, it poses a major threat to the safety of spacecraft in space, and damage assessment for space debris hypervelocity impact is very important.
Xutong Tan   +5 more
doaj   +1 more source

Space Debris Collision Detection using Reachability

open access: yesEPiC Series in Computing, 2018
Benchmark Proposal: Space debris tracking and collision prediction is a growing world- wide problem as more and more objects are placed into orbit. While traditional methods simulate particles with Gaussian uncertainty to make collision predictions, we instead ana- lyze the problem from a reachability perspective. The problem appears to require methods
Kerianne Hobbs   +3 more
openaire   +2 more sources

An Adaptive Real-Time Detection Algorithm for Dim and Small Photoelectric GSO Debris

open access: yesSensors, 2019
Geosynchronous orbit (GSO) is the ideal orbit for communication, navigation, meteorology and other satellites, but the space of GSO is limited, and there are still a large number of space debris threatening the safety of spacecraft.
Quan Sun   +5 more
doaj   +1 more source

Detection of Floating Debris in the Lake Using Statistical Properties of Synthetic Aperture Radar Pulses [PDF]

open access: yesGeo Data, 2023
This study developed the European Space Agency (ESA) Setinel-1 Ground Range Detected (GRD) time series analysis model for monitoring floating debris in lake areas through Google Earth Engine Application Programming Interface.
Donghyeon Yoon, Ha-eun Yu, Moung-Jin Lee
doaj   +1 more source

Characteristics of small-sized space debris objects detected at the Terskol observatory in 2016-2017

open access: yesOpen Astronomy, 2018
The study of near-Earth space includes the detection and investigation of an increasing number of space debris objects by ground-based optical telescopes. There is no natural cleansing of space in the geostationary region. The telescope Zeiss-2000 with a
Levkina Polina   +7 more
doaj   +1 more source

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