DocumentCode :
1132780
Title :
Observability Criteria for Bearings-Only Target Motion Analysis
Author :
Nardone, Steven C. ; Aidala, Vincent J.
Author_Institution :
Naval Underwater Systems Center
Issue :
2
fYear :
1981
fDate :
3/1/1981 12:00:00 AM
Firstpage :
162
Lastpage :
166
Abstract :
The observability requirements for bearings-only target motion analysis (TMA) are rigorously established by solving a third-order nonlinear differential equation. Closed form expressions are developed and subsequently used to specify necessary and sufficient conditions on own-ship motion that insure a uniquetracking solution. It is shown that for certain types of maneuvers the estimation process remains unobservable, even when the associated bearing rate is nonzero. Such maneuvers are frequently overlooked in heuristic discussions of TMA observability, which may account for some common misconceptions regarding the characteristics of acceptable own-ship motion.
Keywords :
Differential equations; Motion analysis; Nonlinear equations; Observability; Oceans; Sea measurements; Sonar; Sufficient conditions; Target tracking; Underwater tracking;
fLanguage :
English
Journal_Title :
Aerospace and Electronic Systems, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9251
Type :
jour
DOI :
10.1109/TAES.1981.309141
Filename :
4102465
Link To Document :
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