Results 1 to 10 of about 141,665 (237)

Research on Full-Sky Star Identification Based on Spatial Projection and Reconfigurable Navigation Catalog

open access: yesRemote Sensing
A star tracker is widely used as a high-precision attitude measurement device for spacecraft. It calculates attitude by extracting the magnitude and the position of presumed detected stars by a CCD/CMOS sensor and matching them with stars in the star ...
Siyao Wu   +5 more
doaj   +1 more source

A Star Recognition Method Based on the Adaptive Ant Colony Algorithm for Star Sensors

open access: yesSensors, 2010
A new star recognition method based on the Adaptive Ant Colony (AAC) algorithm has been developed to increase the star recognition speed and success rate for star sensors.
Jiancheng Fang, Wei Quan
doaj   +1 more source

Guide Star Selection for the Three-FOV Daytime Star Sensor

open access: yesSensors, 2019
To realize the application of the star sensor in the all-day carrier platform, a three-field-of-view (three-FOV) star sensor in short-wave infrared (SWIR) band is considered.
Liang Wu   +4 more
doaj   +1 more source

Plume Noise Suppression Algorithm for Missile-Borne Star Sensor Based on Star Point Shape and Angular Distance between Stars

open access: yesSensors, 2019
When a missile is launched, the plume generated by the propulsion system will produce a lot of fake stars in the star image, which will affect the normal work of the missile-borne star sensor. A plume noise suppression algorithm based on star point shape
Qiaoyun Fan, Zhixu Cai, Gangyi Wang
doaj   +1 more source

Genre et formes d’hégémonie dans les études sur les stars

open access: yesGenre, Sexualité et Société, 2015
This article shows the utility of the concept of hegemony in grasping the political stakes involved in stardom, with specific attention to issues of gender.
Valerio Coladonato
doaj   +1 more source

Motion Blurred Star Image Restoration Based on MEMS Gyroscope Aid and Blur Kernel Correction

open access: yesSensors, 2018
Under dynamic conditions, motion blur is introduced to star images obtained by a star sensor. Motion blur affects the accuracy of the star centroid extraction and the identification of stars, further reducing the performance of the star sensor.
Shiqiang Wang   +3 more
doaj   +1 more source

Self-Calibration for Star Sensors

open access: yesSensors
Aiming to address the chicken-and-egg problem in star identification and the intrinsic parameter determination processes of on-orbit star sensors, this study proposes an on-orbit self-calibration method for star sensors that does not depend on star ...
Jingneng Fu, Ling Lin, Qiang Li
doaj   +1 more source

Search for new stellar sources of gamma-rays

open access: yesEPJ Web of Conferences, 2013
We review and report about the present status of our search for gamma-ray binaries, microquasars, and new kinds of gamma-ray source associated with star forming regions in the Galaxy.
Martí Josep   +3 more
doaj   +1 more source

A Robust High-Accuracy Star Map Matching Algorithm for Dense Star Scenes

open access: yesRemote Sensing
The algorithm proposed in this paper aims at solving the problem of star map matching in high-limiting-magnitude astronomical images, which is inspired by geometric voting star identification techniques.
Quan Sun   +3 more
doaj   +1 more source

Methodology of Scientific, Transparent and Applicable Rankings for Chinese Guidelines and Consensus Related Literature Published in the Medical Journals: ample Identification and Speciality Assignment

open access: yesXiehe Yixue Zazhi
With the development of the Scientific, Transparent and Applicable Rankings tool for clinical practice guidelines(STAR), the publication of evaluation and ranking for scientificity, transparency and applicability of Chinese guidelines and consensus ...
LIU Hui   +8 more
doaj   +1 more source

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