Results 31 to 40 of about 680,911 (294)

Low-Cost Orientation Determination System for CubeSat Based Solely on Solar and Magnetic Sensors

open access: yesSensors, 2023
CubeSats require accurate determination of their orientation relative to the Sun, Earth, and other celestial bodies to operate successfully and collect scientific data.
Yerkebulan Nurgizat   +4 more
doaj   +1 more source

Results of the attitude reconstruction for the UniSat-6 microsatellite using in-orbit data [PDF]

open access: yes, 2016
UniSat-6 is a civilian microsatellite that was launched in orbit on the 19th of June, 2014. Its main mission consisted in the in-orbit release of a number of on-board carried Cubesats and in the transmission to the UniSat-6 ground station of telemetry ...
Chantal Cappelletti   +11 more
core   +3 more sources

A Tutorial on Horizon-Based Optical Navigation and Attitude Determination With Space Imaging Systems

open access: yesIEEE Access, 2021
Images of a nearby celestial body collected by a camera on an exploration spacecraft contain a wealth of actionable information. This work considers how the apparent location of the observed body’s horizon in a digital image may be used to infer ...
John A. Christian
doaj   +1 more source

Attitude Sensor from Ellipsoid Observations: A Numerical and Experimental Validation

open access: yesSensors, 2020
The preliminary design and validation of a novel, high accuracy horizon-sensor for small satellites is presented, which is based on the theory of attitude determination from ellipsoid observations.
Dario Modenini   +2 more
doaj   +1 more source

Dot Product Equality Constrained Attitude Determination from Two Vector Observations: Theory and Astronautical Applications

open access: yesAerospace, 2019
In this paper, the attitude determination problem from two vector observations is revisited, incorporating the redundant equality constraint obtained by the dot product of vector observations.
Jin Wu, Shangqiu Shan
doaj   +1 more source

Filtering-Based Three-Axis Attitude Determination Package for Spinning Spacecraft: Preliminary Results with Arase

open access: yesAerospace, 2020
JAXA’s ERG (Exploration of Energization and Radiation in Geospace) Spacecraft, which is nicknamed Arase, was launched on 20 December 2016. Arase is a spin-stabilized and Sun-oriented spacecraft. Its mission is to explore how relativistic electrons in the
Halil Ersin Soken   +5 more
doaj   +1 more source

Attitude determination and control for centrifugal tether deployment on the ESTCube-1 nanosatellite; pp. 242–249 [PDF]

open access: yesProceedings of the Estonian Academy of Sciences, 2014
This paper presents the design, development, and pre-launch characterization of the ESTCube-1 Attitude Determination and Control System (ADCS). The design driver for the ADCS has been the mission requirement to spin up the satellite to 360 deg × s–1 ...
Andris Slavinskis   +22 more
doaj   +1 more source

A Direct Attitude Determination Approach Based on GPS Double-Difference Carrier Phase Measurements

open access: yesJournal of Applied Mathematics, 2014
The principle of the traditional attitude solution approach based on GPS (Global Position System) is to get the attitude matrix according to the relationship of coordinates.
Jianhua Cheng, Jing Wang, Lin Zhao
doaj   +1 more source

Multiantenna GPS-Over-Fiber System for Attitude Determination Using Phase-Derived Range Measurement

open access: yesIEEE Photonics Journal, 2019
A multiantenna global positioning system over fiber (GPS-over-fiber) system with real-time line bias monitoring is proposed for attitude determination of vehicles.
Xiangchuan Wang   +3 more
doaj   +1 more source

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