Map-enhanced tracking-II

David D. Sworder; John E. Boyd; R. G. Hutchins

doi:10.1117/12.663536

19 May 2006 Map-enhanced tracking-II

David D. Sworder, John E. Boyd, R. G. Hutchins

Proceedings Volume 6236, Signal and Data Processing of Small Targets 2006; 62360A (2006) https://doi.org/10.1117/12.663536
Event: Defense and Security Symposium, 2006, Orlando (Kissimmee), Florida, United States

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.

Citation Download Citation

David D. Sworder, John E. Boyd, and R. G. Hutchins "Map-enhanced tracking-II", Proc. SPIE 6236, Signal and Data Processing of Small Targets 2006, 62360A (19 May 2006); https://doi.org/10.1117/12.663536

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