Results 1 to 10 of about 4,415 (159)
Universal Verification Platform and Star Simulator for Fast Star Tracker Design [PDF]
Sensors, 2021 Developing star trackers quickly is non-trivial. Achieving reproducible results and comparing different algorithms are also open problems. In this sense, this work proposes the use of synthetic star images (a simulated sky), allied with the standardized ...
Victor Hugo Schulz +8 more
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A Comprehensive Calibration Method for a Star Tracker and Gyroscope Units Integrated System [PDF]
Sensors, 2018 The integration of a star tracker and gyroscope units (GUs) can take full advantage of the benefits of each, and provide continuous and accurate attitude information with a high update rate.
Wenfeng Tan +4 more
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RSOnet: An Image-Processing Framework for a Dual-Purpose Star Tracker as an Opportunistic Space Surveillance Sensor [PDF]
Sensors, 2022 A catalogue of over 22,000 objects in Earth’s orbit is currently maintained, and that number is expected to double within the next decade. Novel data collection regimes are needed to scale our ability to detect, track, classify and characterize resident ...
Siddharth Dave +2 more
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Remote Sensing, 2021 CubeSats have been widely used in remote sensing applications such as global coverage, hotspots revisited, etc. However, due to the strict size limitation, the high-accuracy measuring instruments such as star tracker are too large to be applied in ...
Xinyuan Liu +3 more
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Remote Sensing, 2022 The rolling shutter effect decreases the accuracy of the attitude measurement of star trackers when they work in rolling shutter exposure mode, especially under dynamic conditions.
Zongqiang Fu +6 more
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Star-Tracker Algorithm for Smartphones and Commercial Micro-Drones [PDF]
Sensors, 2020 This paper presents a star-tracking algorithm to determine the accurate global orientation of autonomous platforms such as nano satellites, U A V s, and micro-drones using commercial-off-the-shelf ( C O T S ) mobile devices such as ...
Revital Marbel +2 more
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A Brightness-Referenced Star Identification Algorithm for APS Star Trackers [PDF]
Sensors, 2014 Star trackers are currently the most accurate spacecraft attitude sensors. As a result, they are widely used in remote sensing satellites. Since traditional charge-coupled device (CCD)-based star trackers have a limited sensitivity range and dynamic ...
Peng Zhang +3 more
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DETECTION OF THE ANGLE CHANGE BETWEEN CAMERA AND STAR TRACKER BASED ON STAR OBSERVATION [PDF]
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022 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]
علوم، فناوری و کاربردهای فضایی, 2023 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
Remote Sensing, 2022 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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