@Article{GonçalvesRoccMoraKuga:2015:KaFiAp,
author = "Gon{\c{c}}alves, Liana Dias and Rocco, Evandro Marconi and
Moraes, Rodolpho Vilhena de and Kuga, H{\'e}lio Koiti",
affiliation = "{} and {Instituto Nacional de Pesquisas Espaciais (INPE)} and
{Universidade Federal de S{\~a}o Paulo (UNIFESP)} and {Instituto
Nacional de Pesquisas Espaciais (INPE)}",
title = "Kalman filter application to mitigate the errors in the trajectory
simulations due to the lunar gravitational model uncertainty",
journal = "Journal of Physics: Conference Series",
year = "2015",
volume = "641",
pages = "012029",
keywords = "Astrodynamics, Kalman Filter, Orbital Motion, Orbit
Perturbation.",
abstract = "his paper aims to simulate part of the orbital trajectory of Lunar
Prospector mission to analyze the relevance of using a Kalman
filter to estimate the trajectory. For this study it is considered
the disturbance due to the lunar gravitational potential using one
of the most recent models, the LP100K model, which is based on
spherical harmonics, and considers the maximum degree and order up
to the value 100. In order to simplify the expression of the
gravitational potential and, consequently, to reduce the
computational effort required in the simulation, in some cases,
lower values for degree and order are used. Following this aim, it
is made an analysis of the inserted error in the simulations when
using such values of degree and order to propagate the spacecraft
trajectory and control. This analysis was done using the standard
deviation that characterizes the uncertainty for each one of the
values of the degree and order used in LP100K model for the
satellite orbit. With knowledge of the uncertainty of the gravity
model adopted, lunar orbital trajectory simulations may be
accomplished considering these values of uncertainty. Furthermore,
it was also used a Kalman filter, where is considered the sensor's
uncertainty that defines the satellite position at each step of
the simulation and the uncertainty of the model, by means of the
characteristic variance of the truncated gravity model. Thus, this
procedure represents an effort to approximate the results obtained
using lower values for the degree and order of the spherical
harmonics, to the results that would be attained if the maximum
accuracy of the model LP100K were adopted. Also a comparison is
made between the error in the satellite position in the situation
in which the Kalman filter is used and the situation in which the
filter is not used. The data for the comparison were obtained from
the standard deviation in the velocity increment of the space
vehicle.",
doi = "10.1088/1742-6596/641/1/012029",
url = "http://dx.doi.org/10.1088/1742-6596/641/1/012029",
issn = "1742-6588",
label = "lattes: 0088337156908774 2
Gon{\c{c}}alvesRoccMoraKuga:2015:KaFiAp",
language = "pt",
targetfile = "1_goncalves.pdf",
urlaccessdate = "02 maio 2024"
}