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 ...
Mengu Cho +2 more
exaly +4 more sources
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, Dongkai Dai, Shiqiao Qin
exaly +4 more sources
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 ...
Roi Yozevitch +2 more
exaly +4 more sources
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
doaj +2 more sources
Dual-Layer Factor-Graph Optimization for Delayed Star-Tracker/IMU Fusion in Highly Dynamic Spacecraft Attitude Estimation [PDF]
SensorsAccurate attitude estimation for highly dynamic spacecraft relies on robust fusion of star-tracker and inertial measurements. However, asynchronous sensing, motion blur in star images, and delayed star-tracker outputs can significantly degrade estimation
Chao Zhang, Yanjun Yu, Huayi Li
doaj +2 more sources
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 ...
Zheng You, Fei Xing, Xinyuan Liu
exaly +3 more sources
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.
Xiubin Yang, Jiamin Du
exaly +3 more sources
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
doaj +4 more sources
Design and Simulation of a High-Speed Star Tracker for Direct Optical Feedback Control in ADCS [PDF]
Sensors, 2020 Hyochoong Bang, Mikael Marin
exaly +2 more sources
Low-Frequency Error Extraction and Compensation for Attitude Measurements from STECE Star Tracker [PDF]
Sensors, 2016 Defeng Gu, Dongyun Yi
exaly +2 more sources