Results 21 to 30 of about 2,135,515 (263)

A New Composite Algorithm for Identifying the Stars in the Star Tracker

open access: yesInternational Journal of Computer Applications, 2014
Identifying the stars of field of view(FOV) is a difficult stage in determining the attitude through star tracker. Stars identification algorithms identify the stars of FOV, creating patterns from the stars and comparing them with the information saved in the memory.
Manouchehr Abaszadeh   +2 more
openaire   +1 more source

Improved triangular-based star pattern recognition algorithm for low-cost star trackers

open access: yesJournal of King Saud University - Computer and Information Sciences, 2021
Star identification algorithms based on triangular-pattern are more suitable for low-cost star trackers since they require less star density in the field of view to operate effectively. In this paper, we propose a modified star pattern recognition algorithm based on the triangular-based algorithm of “LIEBE”.
Abderrahim Nabi   +2 more
openaire   +3 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

High resolution equipment for the future spacecraft «Resource-PM»

open access: yesВестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2016
The article describes the equipment for the future spacecraft «Resource-PM». The main technical characteristics of the equipment are presented. The equipment includes an optical system, panchromatic and multispectral optoelectronic converters, a memory ...
A. I. Baklanov   +4 more
doaj   +1 more source

Resisting tracker attacks by query terms analysis [PDF]

open access: yes, 2010
Tracker attacks pose a serious threat to databases, especially those used in manufactory and management in industry. These attacks can be used to infer sensitive information in databases and they are difficult to detect.
Ma, X, Xiao Qi Ma
core   +1 more source

Using the Joint Probabilistic Data Association Filter for Improving Star Trackers Performance to Accurate Attitude Determination of Spacecrafts [PDF]

open access: yesفصلنامه علوم و فناوری فضایی, 2016
Automatic control of satellites and spacecrafts, has been extensively paid attention. Attitude determination is one of the most important procedures to control a spacecraft. Star trackers are widely used for attitude determining.
Ahmad Reza Sadeghi   +2 more
doaj  

Star tracker algorithms for attitude determination in lost-in-space conditions

open access: yes
The Institute of Space Sciences of Catalonia (IEEC) is developing PhotSat, a 16U CubeSat whose scientific goal is the all-sky observation of the 40 million brightest astronomical sources. As such, the attitude knowledge and control of the satellite is paramount for the correct operation of the mission.
Casas Díaz, Javier
openaire   +2 more sources

The CMS Tracker operation and performance at the Magnet Test and Cosmic Challenge [PDF]

open access: yes, 2008
During summer 2006 a fraction of the CMS silicon strip tracker was operated in a comprehensive slice test called the Magnet Test and Cosmic Challenge (MTCC).
Broccolo, B.   +999 more
core   +1 more source

Earth-Point Stabilization Performance Using Asynchronous Star Tracker and Angular Velocity Sensor Measurements

open access: yesAerospace
The paper proposes two attitude motion determination algorithms based on an extended Kalman filter dealing with asynchronous measurements of the star tracker and angular velocity sensor.
Danil Ivanov   +3 more
doaj   +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   +1 more source

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