%0 Book Section
%@nexthigherunit 8JMKD3MGPCW/446AF4B
%3 INPE-9519.pdf
%X The subject of autonomous star identification for on board spacecraft attitude determination is addressed. A batch algorithm based on parallel architecture is revisited. The special question of finding the best rotation invariant metric to form the star patterns is analytically solved from an optimization approach using the concept of a discriminating power function. It is shown that the quadratic metric is an approximation of a general optimal solution. A tuning condition to the number of bins for the pattern digitalization is also derived. The performance of the star identification process under ideal conditions is predicted based on the Poison model for the star distribution on the sky. The predictions are compared with numerical results from digital simulation using the SKY2000 star catalog. Directions are finally outlined to improve the algorithm in face of a more realistic scenario.
%@secondarydate 20021213
%E Winter, Othon Cabo,
%E Prado, Antonio Fernando Bertachini de Almeida,
%T Optimal metric for star pattern identification algorithm
%S Advances in space dynamics 3: application in astronautics
%@format ISBN 85-17-00006-4
%@secondarytype PRE LN
%K ENGENHARIA E TECNOLOGIA ESPACIAL.
%B Advances in space dynamics 3: application in astronautics
%@usergroup administrator
%@group DMC-INPE-MCT-BR
%C São José dos Campos
%@secondarykey INPE-9519-PRE/5172
%F 10432
%2 sid.inpe.br/iris@1905/2005/08.04.01.35.11
%@versiontype publisher
%I INPE
%P 40-50
%4 sid.inpe.br/iris@1905/2005/08.04.01.35.01
%D 2002
%@documentstage not transferred
%A Lopes, Roberto Vieira da Fonseca,
%@area ETES
%@holdercode {isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S}