Results 11 to 20 of about 142,436 (198)

An End-to-End Identification Algorithm for Smearing Star Image

open access: yesRemote Sensing, 2021
In the previous study, there were a few direct star identification (star-ID) algorithms for smearing star image. An end-to-end star-ID algorithm is proposed in this article, to directly identify the smearing image from star sensors with fast attitude ...
Jinliang Han   +6 more
doaj   +3 more sources

Hybrid Grid Pattern Star Identification Algorithm Based on Multi-Calibration Star Verification [PDF]

open access: yesSensors
In order to solve the star identification problem in the lost space mode for scientific cameras with small fields of view and higher instruction magnitudes, this paper proposes a star identification algorithm based on a hybrid grid pattern.
Chao Shen   +3 more
doaj   +2 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   +2 more sources

RPNet: A Representation Learning-Based Star Identification Algorithm

open access: yesIEEE Access, 2019
A novel star identification network (RPNet) based on representation learning is proposed in this paper. Unlike other pattern-based stars identification algorithms, the RPNet does not require the creation of an elaborate pattern, nor does it need to ...
Likai Xu, Jie Jiang, Lei Liu
doaj   +3 more sources

A Voting-Based Star Identification Algorithm Using a Partitioned Star Catalog

open access: yesApplied Sciences
With the rapid advancement of aerospace technology, the maneuverability of spacecraft has increasingly improved, creating a pressing demand for star sensors with a high attitude update rate and high precision. Star identification, as the most complex and
Xu He   +5 more
doaj   +3 more sources

Star Identification Algorithm Based on Dynamic Distance Ratio Matching

open access: yesRemote Sensing
A star tracker is a widely used celestial sensor in astronomical navigation systems, which calculates the spacecraft’s high-precision attitude by observing stars in space to obtain several star vectors.
Ya Dai   +8 more
doaj   +3 more sources

A Survey on Star Identification Algorithms

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   +3 more sources

Lost-in-space star identification algorithm based on Hausdorff distance with two approaches: Pivot star and celestial sphere segmentation [PDF]

open access: yesعلوم، فناوری و کاربردهای فضایی, 2023
One of the best attitude sensors for space applications is the star sensor. This sensor determines the attitude using stars in the field of view. One of the main advantages of this sensor is attitude initialization using lost-in-space star identification
Mona Zahednamazi   +2 more
doaj   +1 more source

A New Pivot Algorithm for Star Identification [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2014
In this study, a star identification algorithm which utilizes pivot patterns instead of apparent magnitude information was developed. The new star identification algorithm consists of two steps of recognition process.
Jakyoung Nah, Yu Yi, Yong Ha Kim
doaj   +1 more source

An Autonomous Global Star Identification Algorithm Based on the Fast MST Index and Robust Multi-Order CCA Pattern

open access: yesRemote Sensing, 2023
Star identification plays a key role in spacecraft attitude measurement. Currently, most star identification algorithms tend to perform well only in a scene without noise and are highly sensitive to noise.
Zijian Zhu   +7 more
doaj   +1 more source

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