SHERP

Nonlinear Robust Observer Design for Strapdown INS In-Flight Alignment

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Authors
Yu, Myeong-Jong; Lee, Jang Gyu; Park, Chan Gook
Issue Date
2004-04-30
Publisher
IEEE
Citation
IEEE Transactions on Aerospace and Electronic Systems, 40, 3 (2004), 797-807.
Abstract
A nonlinear observer is proposed for a strapdown inertial
navigation system (SDINS) in-flight alignment problem using
an H
1
filter Riccati equation and a freedom parameter. The
proposed observer improves the filtering stability, convergence,
and performance. The characteristics of the observer are analyzed
using a Lyapunov function. Simulation results demonstrate
a significant reduction in alignment errors by employing the
proposed nonlinear observer. The observer is developed in general
such that it can be applied to estimating nonlinear systems other
than the SDINS in-flight alignment.
ISSN
0018-9251
Language
English
URI
http://hdl.handle.net/10371/10144
DOI
https://doi.org/10.1109/TAES.2004.1337455
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Mechanical Aerospace Engineering (기계항공공학부)Journal Papers (저널논문_기계항공공학부)
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