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The Gaussian Mixture Probability Hypothesis Density Filter

Vo, B.-N., Ma, W.-K.·2006·IEEE Transactions on Signal Processing

Abstract

A new recursive algorithm is proposed for jointly estimating the time-varying number of targets and their states from a sequence of observation sets in the presence of data association uncertainty, detection uncertainty, noise, and false alarms. The approach involves modelling the respective collections of targets and measurements as random finite sets and applying the probability hypothesis density (PHD) recursion to propagate the posterior intensity, which is a first-order statistic of the random finite set of targets, in time. At present, there is no closed-form solution to the PHD recursion. This paper shows that under linear, Gaussian assumptions on the target dynamics and birth process, the posterior intensity at any time step is a Gaussian mixture. More importantly, closed-form recursions for propagating the means, covariances, and weights of the constituent Gaussian components of the posterior intensity are derived. The proposed algorithm combines these recursions with a strategy for managing the number of Gaussian components to increase efficiency. This algorithm is extended to accommodate mildly nonlinear target dynamics using approximation strategies from the extended and unscented Kalman filters.

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Metadata

Authors
Vo, B.-N., & Ma, W.-K.
Venue
IEEE Transactions on Signal Processing
Published
2006-11
Volume
54
Issue
11
Pages
4091-4104
ISSN
  • 1053-587X (ISSN-L)
  • 1941-0476
OpenAlex
W2137585588
Cited by
1,919
References
39
FWCI
34.44
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: The Gaussian Mixture Probability Hypothesis Density Filter. https://app.cochat.ai/papers/10.1109/tsp.2006.881190
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Vo, B.-N., & Ma, W.-K. (2006). The Gaussian Mixture Probability Hypothesis Density Filter. IEEE Transactions on Signal Processing. https://doi.org/10.1109/tsp.2006.881190

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