Results 11 to 20 of about 615,181 (292)
Development Of Star Tracker For Satellite
{"references": ["S.A. Dyatlov, R.V. Bessonov \"Survey of star trackers for satellites\" in\nthe Proc. of russian scientific conference \"Modern problems of attitude\ndetermination and navigation of spacecrafts\", Russia, Tarusa, 2008, pp.\n12 \u2013 31.", "\u041c.\u041c. Moldabekov, S.\u0410. Yelubayev, K.A. Alipbayev, T.M. Bopeyev,\nA.S.
S. Yelubayev +7 more
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A star tracker design for CubeSats [PDF]
This paper outlines a low-cost, low-power, arc-minute accurate star tracker that is designed for use on a CubeSat. The device is being developed at the University of Texas at Austin for use on two different 3-unit CubeSat missions. The hardware consists of commercial off-the-shelf parts designed for use in industrial machine vision systems and employs ...
C. R. McBryde, E. G. Lightsey
core +4 more sources
DETECTION OF THE ANGLE CHANGE BETWEEN CAMERA AND STAR TRACKER BASED ON STAR OBSERVATION [PDF]
Satellites in orbit are affected by changes in thermal environment and other factors, and the angle of optical axis between the camera and star tracker (Cam-ST) changes.
Z. Guan +6 more
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Computing the Installation Error between Star Tracker and Fiber Optic Gyroscope [PDF]
Star tracker is one of the most important devices used on satellites for attitude determination. Since its output is discontinuous, it needs a complementary unit to cover its discontinuities.
Elham Kowsari, Hadi Makarem
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On-Orbit Geometric Distortion Correction on Star Images through 2D Legendre Neural Network
The star tracker is a prerequisite device to realize high-precision attitude determination for a spacecraft. However, due to the errors in optical lens machining, optical path assembly, and temperature alternation, optical instruments suffer from some ...
Chenguang Shi +3 more
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Stratospheric temperature measurements from nanosatellite stellar occultation observations of refractive bending [PDF]
Stellar occultation observations from space can probe the stratosphere and mesosphere at a fine vertical scale around the globe. Unlike other measurement techniques like radiosondes and aircraft, stellar occultation has the potential to observe the ...
D. L. McGuffin +8 more
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The forward GEM tracker of STAR at RHIC [PDF]
3 pages, 4 figures, submitted to the Conference Record of the IEEE NSS 2008, Dresden ...
Simon, F. +13 more
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Space Debris Detection and Positioning Technology Based on Multiple Star Trackers
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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Neural Network Calibration of Star Trackers
<p>To maintain ideal performance, star trackers must be able to predict the direction of incident starlight to within a few arcseconds across the entire instrument field of view (FOV). Parametric camera models are commonly used to calculate star vectors from camera images and correct for aberrations in the instrument optics.
Shaghayegh Khodabakhshian, John Enright
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Research and apply of the quality of star image for star tracker [PDF]
In recent years,with the development of commercial spaceflight, the requirements of the production quality for star tracker in commercial satellite become higher and higher.
SHEN Yuteng, ZHANG Chi
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