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 +5 more sources
A Compressed and High-Accuracy Star Tracker with On-Orbit Deployable Baffle for Remote Sensing CubeSats [PDF]
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
doaj +5 more sources
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
doaj +5 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 +4 more
doaj +5 more sources
Analysis and Correction of the Rolling Shutter Effect for a Star Tracker Based on Particle Swarm Optimization [PDF]
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
doaj +4 more sources
Treatment of Extended Kalman Filter Implementations for the Gyroless Star Tracker. [PDF]
Sensors (Basel), 2022 The literature since Apollo contains exhaustive material on attitude filtering, usually treating the problem of two sensors, a combination of state measuring and inertial devices.
Critchley-Marrows JJR, Wu X, Cairns IH.
europepmc +2 more sources
Ground Testing Strategies for Verifying the Slew Rate Tolerance of Star Trackers [PDF]
Sensors, 2014 The performance of a star tracker is largely based on the availability of its attitude solution. Several methods exist to assess star tracker availability under both static and dynamic imaging conditions.
Tom Dzamba, John Enright
doaj +2 more sources
Star Tracker Geometric Calibration Through Full-State Estimation Including Attitude
International Journal of Aeronautical and Space Sciences, 2022 A star tracker calibration method using star images is presented in this paper. Unlike previous works, the proposed method estimates all parameters and the attitudes at once in a single least-squares formulation for the optimal calibration, which can be ...
Hyosang Yoon, Kiwook Baeck, Junsung Wi
semanticscholar +3 more sources
An Integrated Tracker for STAR [PDF]
AIP Conference Proceedings, 2006 The STAR experiment at the Relativistic Heavy Ion Collider RHIC studies the new state of matter produced in relativistic heavy ion collisions and the spin structure of the nucleon in collisions of polarized protons.
Adams, J +7 more
core +4 more sources
Low-Frequency Error Extraction and Compensation for Attitude Measurements from STECE Star Tracker. [PDF]
Sensors (Basel), 2016 The low frequency errors (LFE) of star trackers are the most penalizing errors for high-accuracy satellite attitude determination. Two test star trackers- have been mounted on the Space Technology Experiment and Climate Exploration (STECE) satellite, a ...
Lai Y, Gu D, Liu J, Li W, Yi D.
europepmc +2 more sources