Results 11 to 20 of about 141,665 (237)

Efficient Star Identification Using a Neural Network [PDF]

open access: yesSensors, 2020
The required precision for attitude determination in spacecraft is increasing, providing a need for more accurate attitude determination sensors.
David Rijlaarsdam   +5 more
doaj   +7 more sources

Non-Dimensional Star-Identification [PDF]

open access: yesSensors, 2020
This study introduces a new “Non-Dimensional” star identification algorithm to reliably identify the stars observed by a wide field-of-view star tracker when the focal length and optical axis offset values are known with poor accuracy.
Carl Leake, David Arnas, Daniele Mortari
doaj   +7 more sources

A Survey of Lost-in-Space Star Identification Algorithms Since 2009 [PDF]

open access: yesSensors, 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   +4 more sources

Star Identification Based on Multilayer Voting Algorithm for Star Sensors [PDF]

open access: yesSensors, 2021
This paper describes the multilayer voting algorithm, a novel autonomous star identification method for spacecraft attitude determination. The proposed algorithm includes two processes: an initial match process and a verification process.
Meiying Liu   +3 more
doaj   +6 more sources

A Brightness-Referenced Star Identification Algorithm for APS Star Trackers [PDF]

open access: yesSensors, 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   +5 more sources

An Autonomous Star Identification Algorithm Based on One-Dimensional Vector Pattern for Star Sensors [PDF]

open access: yesSensors, 2015
In order to enhance the robustness and accelerate the recognition speed of star identification, an autonomous star identification algorithm for star sensors is proposed based on the one-dimensional vector pattern (one_DVP). In the proposed algorithm, the
Liyan Luo, Luping Xu, Hua Zhang
doaj   +4 more sources

Spherical Polar Pattern Matching for Star Identification [PDF]

open access: yesSensors
To endow a star sensor with strong robustness, low algorithm complexity, and a small database, this paper proposes an all-sky star identification algorithm based on spherical polar pattern matching.
Jingneng Fu, Ling Lin, Qiang Li
doaj   +4 more sources

A Survey on Star Identification Algorithms [PDF]

open access: yesAlgorithms, 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   +4 more sources

An Efficient and Robust Star Identification Algorithm Based on Neural Networks [PDF]

open access: yesSensors, 2021
A lost-in-space star identification algorithm based on a one-dimensional Convolutional Neural Network (1D CNN) is proposed. The lost-in-space star identification aims to identify stars observed with corresponding catalog stars when there is no prior ...
Bendong Wang, Hao Wang, Zhonghe Jin
doaj   +2 more sources

MVDT-SI: A Multi-View Double-Triangle Algorithm for Star Identification [PDF]

open access: yesSensors, 2020
Recently, the triangle algorithm has become the most widely used star identification algorithm because of its simplicity and convenience, where the magnitude information plays a key role in the construction of star map features. However, in practice, the
Lijian Sun, Yun Zhou
doaj   +2 more sources

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