Observability analysis of piece-wise constant systems. II. Application to inertial navigation in-flight alignment (military applications)

For pt.I see ibid., vol.28, no.4, p.1056-67, Oct. 1992. The method of analyzing the observability of time-varying linear systems as piecewise constant systems (PWCS) is applied to the analysis of in-flight alignment (IFA) of inertial navigation systems (INS) whose estimability is known to be enhance...

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Bibliographic Details
Published in:IEEE transactions on aerospace and electronic systems 1992-10, Vol.28 (4), p.1068-1075
Main Authors: Goshen-Meskin, D., Bar-Itzhack, I.Y.
Format: Article
Language:English
Subjects:
Acceleration
Aerospace industry
Aircraft navigation
Analytical models
Applied sciences
Exact sciences and technology
Inertial navigation
Linear systems
Observability
Radiolocalization and radionavigation
Telecommunications
Telecommunications and information theory
Time varying systems
Vehicles
Weapons
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Summary:For pt.I see ibid., vol.28, no.4, p.1056-67, Oct. 1992. The method of analyzing the observability of time-varying linear systems as piecewise constant systems (PWCS) is applied to the analysis of in-flight alignment (IFA) of inertial navigation systems (INS) whose estimability is known to be enhanced by maneuvers. The validity of this approach to the analysis of IFA is proven. The analysis lays the theoretical background to, and clearly demonstrates the observability enhancement of, IFA. The analytic conclusions are confirmed by covariance simulations. Although INS IFA was handled to various degrees in the past, a comprehensive control theoretic approach to the problem is introduced. The analysis yields practical conclusions and a procedure previously unknown.< >
ISSN:0018-9251
1557-9603
DOI:10.1109/7.165368