@InProceedings{MortariFialLock:2016:StCeFr,
author = "Mortari, Daniele and Fialho, Marcio Afonso Arimura and Lockhart,
A.",
affiliation = "{Texas A\&M University} and {Instituto Nacional de Pesquisas
Espaciais (INPE)} and {NASA - Johnson Space Center}",
title = "Star centroid on the f-radius sphere using von mises-fisher
probability distribution",
year = "2016",
organization = "AAS/AIAA Space Flight Mechanics Meeting, 26.",
abstract = "This paper proposes a method to perform star centroid for star
trackers using small focal length or large CCD or CMOS imagers.
The stars light on the imager on these trackers are affected by
gnomonic distortion and classic approach to perform centroid are
not accurate. By mapping the gray tones and areas of the pixels
into a fictitious sphere of focal length radius and using the von
MisesFisher probability distribution, a more accurate star
centroid can be obtained and, consequently, a more accurate
attitude estimation.",
conference-location = "Napa, CA",
conference-year = "14-18 Feb.",
language = "en",
urlaccessdate = "28 abr. 2024"
}