Results 11 to 20 of about 5,495,810 (173)

Performance Analysis of Sensor Systems for Space Situational Awareness [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2017
With increased human activity in space, the risk of re-entry and collision between space objects is constantly increasing. Hence, the need for space situational awareness (SSA) programs has been acknowledged by many experienced space agencies.
Eun-Jung Choi   +8 more
doaj   +4 more sources

Task Planning for Multiple-Satellite Space-Situational-Awareness Systems

open access: yesAerospace, 2021
Space situational awareness (SSA) plays an important role in maintaining space advantages. Task planning is one of the key technologies in SSA to allocate multiple tasks to multiple satellites, so that a satellite may be allocated to supervise multiple ...
Yutao Chen   +3 more
doaj   +2 more sources

Localization and classification of space objects using EfficientDet detector for space situational awareness [PDF]

open access: yesScientific Reports, 2022
Space situational awareness (SSA) systems play a significant role in space navigation missions. One of the most essential tasks of this system is to recognize space objects such as spacecrafts and debris for various purposes including active debris ...
Nouar AlDahoul   +3 more
doaj   +2 more sources

Frigate: A Novel Dataset Comprising Wide Field-of-View Astronomical FITS Images of Low Earth Orbit Scenes for Machine Learning Applications [PDF]

open access: yesScientific Data
This report presents Frigate, a novel astronomical dataset comprising still-frame images of a section of Low Earth Orbit (LEO), collected by ExoAnalytic Solutions Inc., a commercial space situational awareness (SSA) provider using ground-based optical ...
Daniel S. Roll   +4 more
doaj   +2 more sources

Simulation of Dense Star Map in Deep Space Based on Gaia Catalogue [PDF]

open access: yesSensors
High-fidelity star field simulation is paramount for target detection and space situational awareness (SSA) in geostationary and deep-space environments.
Puzhen Li   +3 more
doaj   +2 more sources

Assisted Snapshot GNSS Position, Navigation, and Timing for LEO Satellites [PDF]

open access: yesSensors
This paper presents a novel conceptual design for a low Size, Weight, Power, and Cost (SWaP-C) snapshot Global Navigation Satellite System (GNSS) positioning system for Low Earth Orbit (LEO) CubeSats to enhance their Space Situational Awareness (SSA ...
Seunghwan Kim   +4 more
doaj   +2 more sources

YOLO-GRBI: An Enhanced Lightweight Detector for Non-Cooperative Spatial Target in Complex Orbital Environments [PDF]

open access: yesEntropy
Non-cooperative spatial target detection plays a vital role in enabling autonomous on-orbit servicing and maintaining space situational awareness (SSA). However, due to the limited computational resources of onboard embedded systems and the complexity of
Zimo Zhou   +4 more
doaj   +2 more sources

Long-Term Sustainability of Outer Space Activities and Space Traffic Management

open access: yesAdvanced Space Law, 2023
This research addresses the critical importance of long-term sustainability and coordinated management of space traffic in the era of rapidly increasing space activities.
Olga Stelmakh-Drescher
doaj   +1 more source

Space Situational Awareness Workshop [PDF]

open access: yes, 2023
The goal of the Space Situational Awareness workshops is to bring together stakeholders interested in space situational awareness (SSA). This includes practitioners, users of data, representatives of industry and the military, the scientific community ...
Space and Defense
core   +1 more source

MADDPG-Based Security Situational Awareness for Smart Grid with Intelligent Edge

open access: yesApplied Sciences, 2021
Advanced communication and information technologies enable smart grids to be more intelligent and automated, although many security issues are emerging.
Wenxin Lei   +3 more
doaj   +1 more source

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