Results 21 to 30 of about 2,667,877 (264)
Remote SensingTo improve the centroid extraction accuracy and efficiency of high-dynamic star sensors, this paper proposes a multi-centroid localization method based on the prior distribution of star trail projections.
Xingyu Tang +5 more
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Thermal design and analysis of high power star sensors
Case Studies in Thermal Engineering, 2015 The requirement for the temperature stability is very high in the star sensors as the high precision needs for the altitude information. Thermal design and analysis thus is important for the high power star sensors and their supporters.
Fan Jiang +4 more
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A Star Recognition Method Based on the Adaptive Ant Colony Algorithm for Star Sensors [PDF]
Sensors, 2010 A new star recognition method based on the Adaptive Ant Colony (AAC) algorithm has been developed to increase the star recognition speed and success rate for star sensors.
Jiancheng Fang, Wei Quan
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A Curvature-Based Multidirectional Local Contrast Method for Star Detection of a Star Sensor
Photonics, 2021 Stray light, such as sunlight, moonlight, and earth-atmosphere light, can bring about light spots in backgrounds, and it affects the star detection of star sensors.
Kaili Lu +5 more
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Theoretical Limits of Star Sensor Accuracy [PDF]
Sensors, 2019 To achieve mass, power and cost reduction, there is a trend to reduce the volume of many instruments aboard spacecraft, especially for small spacecraft (cubesats or nanosats) with very limited mass, volume and power budgets. With the current trend of miniaturizing spacecraft instruments one could naturally ask if is there a physical limit to this ...
Marcio A. A. Fialho, Daniele Mortari
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International Conference on Space Optics — ICSO 1997, 2018 This paper, “Novel star sensor," was presented as part of International Conference on Space Optics—ICSO 1997, held in Toulouse, France.
Ad A. Maas +3 more
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Image Degradation Model for Dynamic Star Maps in Multiple Scenarios
Photonics, 2022 To meet the ground test requirements of star sensors, we establish the star map simulation algorithm and the interactive interface in multiple scenarios.
Haima Yang +8 more
doaj +1 more source
Electronics, 2023 Star sensors are widely used by satellites for their precise pointing accuracy. However, protons in space will cause cumulative effects and single-event transients in the imaging systems of star sensors. These effects will affect the success rate of star
Yihao Cui +4 more
semanticscholar +1 more source
HARMONI at ELT: towards a final design for the Natural Guide Star Sensors system
Astronomical Telescopes + Instrumentation, 2022 HARMONI is the first light visible and near-IR integral field spectrograph for the ELT. It covers a large spectral range from 450nm to 2450nm with resolving powers from 3500 to 18000 and spatial sampling from 60mas to 4mas. It can operate in two Adaptive
K. Dohlen +23 more
semanticscholar +1 more source
Guide Star Selection for the Three-FOV Daytime Star Sensor [PDF]
Sensors, 2019 To realize the application of the star sensor in the all-day carrier platform, a three-field-of-view (three-FOV) star sensor in short-wave infrared (SWIR) band is considered. This new prototype employs new techniques that can improve the detection capability of the star sensor, when the huge size of star identification feature database becomes a big ...
Liang Wu 0007 +4 more
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