Results 11 to 20 of about 112,900 (258)
Automatic extraction channel of space debris based on wide-field surveillance system
npj Microgravity, 2022 In the past few years, the increasing amount of space debris has triggered the demand for distributed surveillance systems. Long exposure time can effectively improve the target detection capability of the wide-area surveillance system.
Ping Jiang +5 more
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Uncertainty Quantification for Space Situational Awareness and Traffic Management
Sensors, 2019 This paper presents a sensor-orientated approach to on-orbit position uncertainty generation and quantification for both ground-based and space-based surveillance applications.
Samuel Hilton +5 more
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Space Debris Detection and Positioning Technology Based on Multiple Star Trackers
Applied Sciences, 2022 This paper focuses on the opportunity to use multiple star trackers to help space situational awareness and space surveillance. Catalogs of space debris around Earth are usually based on ground-based measurements, which rely on data provided by ground ...
Meiying Liu +7 more
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CMOS Image Sensors in Surveillance System Applications
Sensors, 2021 Recent technology advances in CMOS image sensors (CIS) enable their utilization in the most demanding of surveillance fields, especially visual surveillance and intrusion detection in intelligent surveillance systems, aerial surveillance in war zones ...
Susrutha Babu Sukhavasi +4 more
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Replicas Strategy and Cache Optimization of Video Surveillance Systems Based on Cloud Storage
Future Internet, 2018 With the rapid development of video surveillance technology, especially the popularity of cloud-based video surveillance applications, video data begins to grow explosively. However, in the cloud-based video surveillance system, replicas occupy an amount
Rongheng Li, Jian Zhang, Wenfeng Shen
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Aerospace, 2021 For Geosynchronous Earth Orbit (GEO) objects, space-based optical surveillance has advantages over regional ground surveillance in terms of both the timeliness and space coverage.
Jian Huang +6 more
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Stray Light Suppression of Wide-Field Surveillance in Complicated Situations
IEEE Access, 2023 Wide field and long exposure time can effectively improve the ability of space surveillance telescope to detect weak space targets. However, this is easily affected by stray light, resulting in the effective target submerged in the background of stray ...
Dali Zhou, Xiaodong Wang
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A flexibly shaped space-time scan statistic for disease outbreak detection and monitoring
International Journal of Health Geographics, 2008 Background Early detection of disease outbreaks enables public health officials to implement disease control and prevention measures at the earliest possible time. A time periodic geographical disease surveillance system based on a cylindrical space-time
Tango Toshiro +3 more
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Methods of validation of the ballistic structure of space surveillance system orbital segment
Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2019 Space activity brought about the space debris problem that constitutes a threat to active spacecraft. Nowadays the most efficient way of spacecraft protection against space debris is choosing the appropriate orbit parameters to prevent collisions of ...
I. A. Fadin +2 more
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Effect of Observation Geometry on Short-Arc Angles-Only Initial Orbit Determination
Applied Sciences, 2022 Space-based optical sensors are attracting increasing research attention as they can measure the angle of space targets over large areas, facilitating low-cost, wide-area space target surveillance. Studying the effect of observation geometry on short-arc
Zhao Feng +4 more
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