Results 21 to 30 of about 615,181 (292)

A SLIC-DBSCAN Based Algorithm for Extracting Effective Sky Region from a Single Star Image

open access: yesSensors, 2021
The star tracker is widely used for high-accuracy missions due to its high accuracy position high autonomy and low power consumption. On the other hand, the ability of interference suppression of the star tracker has always been a hot issue of concern. A
Chenguang Shi   +4 more
doaj   +1 more source

Intelligent Star Tracker

open access: yesProceedings of the 43rd IEEE Midwest Symposium on Circuits and Systems (Cat.No.CH37144), 2002
Describes the Intelligent Star Tracker System. The Intelligent Star Tracker System incorporates an adaptive optic catadioptric telescope in a silicon carbide housing. Leveraging off of the active optic technologies, the novel active pixel position sensors (APPS) enable wide dynamic range and allow simultaneous imagery of faint and bright stars in a ...
N. Clark, P. Furth
openaire   +3 more sources

Reconfigurable Hardware-in-the-Loop Test Bench for the SHEFEX2 Hybrid Navigation System Experiment [PDF]

open access: yes, 2011
The Hybrid Navigation System is being developed to achieve the required attitude accuracy and calculate a navigation solution for the SHEFEX2 mission, which will be launched in February 2012 from And\o ya Rocket Range in Norway by the German Aerospace ...
Steffes, Stephen R.   +7 more
core   +1 more source

Stand-alone cosmic muon reconstruction before installation of the CMS silicon strip tracker [PDF]

open access: yes, 2009
This is the Pre-print version of the Article. The official published version can be accessed from the link below - Copyright @ 2009 IOPThe subsystems of the CMS silicon strip tracker were integrated and commissioned at the Tracker Integration Facility ...
Brom J-   +999 more
core   +2 more sources

Performance studies of the CMS strip tracker before installation [PDF]

open access: yes, 2008
This is the Pre-print version of the Article. The official published version can be accessed from the link below - Copyright @ 2009 IOPIn March 2007 the assembly of the Silicon Strip Tracker was completed at the Tracker Integration Facility at CERN ...
Brom J-   +999 more
core   +1 more source

Ground Testing Strategies for Verifying the Slew Rate Tolerance of Star Trackers

open access: yesSensors, 2014
The performance of a star tracker is largely based on the availability of its attitude solution. Several methods exist to assess star tracker availability under both static and dynamic imaging conditions.
Tom Dzamba, John Enright
doaj   +1 more source

Optical System Error Analysis and Calibration Method of High-Accuracy Star Trackers

open access: yesSensors, 2013
The star tracker is a high-accuracy attitude measurement device widely used in spacecraft. Its performance depends largely on the precision of the optical system parameters.
Zheng You, Fei Xing, Ting Sun
doaj   +1 more source

Exposure Time Optimization for Highly Dynamic Star Trackers

open access: yesSensors, 2014
Under highly dynamic conditions, the star-spots on the image sensor of a star tracker move across many pixels during the exposure time, which will reduce star detection sensitivity and increase star location errors.
Xinguo Wei   +3 more
doaj   +1 more source

A heavy flavor tracker for STAR [PDF]

open access: yesNuclear Physics A, 2006
proceedings of the Quark Matter 2005 Conference, Budapest, Hungary; to appear in Nucl. Phys.
openaire   +2 more sources

Alignment of the CMS silicon strip tracker during stand-alone commissioning [PDF]

open access: yes, 2009
This is the Pre-print version of the Article. The official published version of the paper can be accessed from the link below - Copyright @ 2009 IOPThe results of the CMS tracker alignment analysis are presented using the data from cosmic tracks, optical
Brom J-   +999 more
core   +1 more source

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