We present reduced-complexity nonlinear filtering algorithms for image-based tracking of maneuvering targets. In image-based target tracking, the mode of the target is observed as a Markov modulated Poisson process (MMPP) and the aim is to compute optimal estimates of the target's state. We present a reduced complexity algorithm in two steps. First, a gauge transformation is used to reexpress the filtering equations in a form that is computationally more efficient for time discretization than naive discretization of the filtering equations. Second, a spatial aggregation algorithm with guaranteed performance bounds is presented for the time-discretized filters. A numerical example illustrating the performance of the resulting reduced-complexity filtering algorithms for a switching turn-rate model is presented.
Reduced spatio-temporal complexity MMPP and image-based tracking filters for maneuvering targets
IEEE Transactions on Aerospace and Electronic Systems ; 39 , 4 ; 1277-1291
2003-10-01
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Article (Journal)
Electronic Resource
English
Reduced Spatio-Temporal Complexity MMPP and Image-Based Tracking Filters for Maneuvering Targets
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