Results 1 to 10 of about 1,744 (128)
Real-Time Hardware-in-the-Loop Tests of Star Tracker Algorithms [PDF]
International Journal of Aerospace Engineering, 2013 This paper deals with star tracker algorithms validation based on star field scene simulation and hardware-in-the-loop test configuration. A laboratory facility for indoor tests, based on the simulation of star field scenes, is presented.
Giancarlo Rufino +5 more
doaj +4 more sources
A Survey of Lost-in-Space Star Identification Algorithms Since 2009
Sensors, 2020 The lost-in-space star identification algorithm is able to identify stars without a priori attitude information and is arguably the most critical component of a star sensor system.
David Rijlaarsdam +5 more
doaj +3 more sources
A Survey on Star Identification Algorithms
Algorithms, 2009 The author surveys algorithms used in star identification, commonly used in star trackers to determine the attitude of a spacecraft. Star trackers are a staple of attitude determination systems for most types of satellites.
Daniele Mortari, Benjamin B. Spratling
doaj +3 more sources
Universal Verification Platform and Star Simulator for Fast Star Tracker Design
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 +3 more sources
Modification and hardware implementation of star tracker algorithms [PDF]
SN Applied Sciences, 2019 In this paper, a laboratory model is designed to evaluate the performance of star tracker algorithms for attitude determination of a satellite. Star tracker is the most accurate attitude sensor that determines satellite direction by applying centroiding algorithm, star identification and attitude determination.
Maliheh Hashemi
exaly +2 more sources
Comparison of algorithms for satellite attitude determination using data from visual sensors [PDF]
Bulletin of the Polish Academy of Sciences: Technical Sciences, 2021 The objective of the research was to investigate the efficiency of selected methods of data fusion from visual sensors used on-board satellites for attitude measurements.
Janusz Narkiewicz +3 more
doaj +1 more source
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 range, the matching process for a star tracker is typically not very sensitive to star brightness.
Zhang, Peng +3 more
openaire +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 smartphones.
Revital Marbel +2 more
openaire +4 more sources
Компьютерная оптика, 2023 A rotational blur correction algorithm is considered as the initial stage of image processing in the problem of attitude measurement using a star tracker. To implement this algorithm, the star tracker must be equipped with a three-axis gyroscope.
N.N. Vasilyuk
doaj +1 more source
Centroid determination hardware algorithm for star trackers
International Journal of Sensor Networks, 2020 The execution of centroid extraction algorithms using a microprocessor consumes considerable resources when compared to the other steps involved in star trackers. This paper presents a method to identify star centroids in star trackers by pre-processing the pixels using a field-programmable gate array (FPGA) directly in the stream transmitted by an ...
Gabriel Mariano Marcelino +3 more
openaire +1 more source