NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Efficient Sequential Attitude Estimation from Vector ObservationsThis paper presents a computationally efficient, sequential method for attitude matrix estimation using gyro and vector measurements. The method is based on a recently introduced, minimal-parameter third-order method for solving the orthogonal matrix differential equation in R(sup n). In the three-dimensional case, these third-order attitude parameters can be interpreted as temporal-integrals of the body-frame angular velocity components. A nonlinear algorithm is developed, which uses this minimal set of three parameters to estimate the nine-parameter direction-cosine matrix. Having an extremely simple kinematic equation, these parameters render the resulting estimator highly computationally efficient. An orthogonalization procedure, incorporated into the measurement processing stage, enhances the accuracy and stability of the resulting algorithm, yet retains reasonable simplicity. The performance of the estimator is demonstrated via a Monte Carlo simulation study.
Document ID
19970017215
Document Type
Conference Paper
Authors
Oshman, Yaakov
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Markley, F. Landis
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Date Acquired
September 8, 2013
Publication Date
May 1, 1997
Publication Information
Publication: Flight Mechanics Symposium 1997
Subject Category
Astrodynamics
Accession Number
97N19575
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Document Inquiry

Available Downloads

There are no available downloads for this record.
No Preview Available