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Proceedings Paper

Map-enhanced tracking-II
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Paper Abstract

A multiple-model tracker; e.g., the Gaussian Wavelet Estimator (GWE), employs a family of linear, local models to represent the motion of a maneuvering target over a range of operating modes. The state estimate generated by the GWE is a distribution with diffuse support. A road map provides contemporaneous, albeit circumscribed, information that can be integrated into the GWE to improve location estimation. However, fusing the inelastic restrictions of a road grid with the broad state estimates generated from conventional kinematic measurement requires considerable care. This paper presents a modified version of the GWE which integrates a map grid into the state estimate. The result is a state estimate consisting of a set of singular Gaussian sub-estimates. It is shown by example that map-enhancement improves the accuracy of the location estimates and sharpens the calculated uncertainty region.

Paper Details

Date Published: 19 May 2006
PDF: 9 pages
Proc. SPIE 6236, Signal and Data Processing of Small Targets 2006, 62360A (19 May 2006); doi: 10.1117/12.663536
Show Author Affiliations
David D. Sworder, Univ. of California San Diego (United States)
John E. Boyd, Cubic Defense Applications (United States)
R. G. Hutchins, Naval Postgraduate School (United States)

Published in SPIE Proceedings Vol. 6236:
Signal and Data Processing of Small Targets 2006
Oliver E. Drummond, Editor(s)

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