Results 11 to 20 of about 29,428 (246)

Reliable Fiber Sensor System with Star-Ring-Bus Architecture

open access: yesSensors, 2010
This work presents a novel star-ring-bus sensor system and demonstrates its effectiveness. The main trunk of the proposed sensor system is a star topology and the sensing branches comprise a series of bus subnets.
Kuan-Yan Huang   +2 more
doaj   +3 more sources

An Autonomous Navigation Algorithm for High Orbit Satellite Using Star Sensor and Ultraviolet Earth Sensor [PDF]

open access: yesThe Scientific World Journal, 2013
An autonomous navigation algorithm using the sensor that integrated the star sensor (FOV1) and ultraviolet earth sensor (FOV2) is presented. The star images are sampled by FOV1, and the ultraviolet earth images are sampled by the FOV2.
Li Baohua   +3 more
doaj   +2 more sources

Star Image Registration Modeling and Parameter Calibration for a 3CMOS Star Sensor. [PDF]

open access: yesSensors (Basel)
This paper presents an image registration method specifically designed for a star sensor equipped with three complementary metal oxide semiconductor (CMOS) detectors. Its purpose is to register the red-, green-, and blue-channel star images acquired from three CMOS detectors, assuring the precision of star image fusion and centroid extraction in ...
Niu Y, Wei X, Li J.
europepmc   +4 more sources

Optical system design of star sensor and stray light analysis

open access: yesJournal of the European Optical Society-Rapid Publications, 2018
Background Star sensor is one of the precise attitude determination sensors. It is an electro-optical system that takes an image from a set of stars and by comparing it with the star catalogue determines angle deviation of the satellite and modifies its ...
Mohammad Asadnezhad   +2 more
doaj   +3 more sources

False Star Filtering for Star Sensor Based on Angular Distance Tracking [PDF]

open access: yesIEEE Access, 2019
The reliability of star sensor in a harsh environment has recently become a research hotspot. In some harsh environment such as plume interference, a large number of false stars can be observed, leading to failure in star identification.
Gangyi Wang   +3 more
doaj   +2 more sources

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   +3 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   +2 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. In the initial match process, a triangle voting scheme is used to acquire candidates of the detected stars, in ...
Liu, Meiying   +3 more
openaire   +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

Home - About - Disclaimer - Privacy