Results 81 to 90 of about 306 (171)
The First Application of a Gd3Al2Ga3O12:Ce Single-Crystal Scintillator to Neutron Radiography. [PDF]
J Imaging, 2021 Isegawa K +3 more
europepmc +1 more source
Effects of the LGS geometry on the Shack-Hartmann wavefront sensor and the Pyramid wavefront sensor
International audienceIn this work we study the effects of the laser guide star (LGS) on the measurements of both the Shack-Hartmann wavefront sensor (SHWFS) and the Pyramid wavefront sensor (PWFS).
Rouquette, Paul +5 more
core +1 more source
Optics ExpressThe star spot centroid localization accuracy of the star tracker directly determines the accuracy of satellite attitude control. To address the degradation of attitude determination accuracy during high-acceleration maneuvers, this study establishes a star spot acceleration motion model in the sensor coordinate system.
Sida, Mu +4 more
openaire +2 more sources
Fast and Robust pointing and tracking using a second-generation star tracker.
, 1998 Second generation star trackers work by taking wide-angle optical pictures of star fields, correlating the image against a star catalogue in ROM, centroiding many stars to derive an accurate position and orientation.
Pickles, Andrew, Jørgensen, John Leif
core
On-Orbit Calibration of Installation Matrix between Remote Sensing Camera and Star Camera Based on Vector Angle Invariance. [PDF]
Sensors (Basel), 2020 Tang Y, Wei Z, Wei X, Li J, Wang G.
europepmc +1 more source
Fine Guidance Sensing for Coronagraphic Observatories
, 2011 Three options have been developed for Fine Guidance Sensing (FGS) for coronagraphic observatories using a Fine Guidance Camera within a coronagraphic instrument.
Moody, Dwight C. +3 more
core
Simulation of RSO Images for Space Situation Awareness (SSA) Using Parallel Processing. [PDF]
Sensors (Basel), 2021 Clark R, Fu Y, Dave S, Lee R.
europepmc +1 more source
Star Tracker Cost Reduction for Small Satellites
, 2014 In recent years, the great potential of small satellites has become ever clearer and small satellites are selected to perform increasingly complex missions.
Vandenbussche, Bart +2 more
core
Non-Dimensional Star-Identification. [PDF]
Sensors (Basel), 2020 Leake C, Arnas D, Mortari D.
europepmc +1 more source
A Highly Efficient Attitude Estimation Algorithm for Star Trackers Based on Optimal Image Matching
, 2012 This paper presents a novel attitude estimation algorithm for spacecraft using a star tracker. The algorithm is based on an efficient approach to match the stars of two images optimally on top of each other, hence the name of the algorithm: AIM (Attitude
Delabie, Tjorven
core