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PHD filters of higher order in target number

Mahler, Ronald·2007·IEEE Transactions on Aerospace and Electronic Systems

Abstract

The multitarget recursive Bayes nonlinear filter is the theoretically optimal approach to multisensor-multitarget detection, tracking, and identification. For applications in which this filter is appropriate, it is likely to be tractable for only a small number of targets. In earlier papers we derived closed-form equations for an approximation of this filter based on propagation of a first-order multitarget moment called the probability hypothesis density (PHD). In a recent paper, Erdinc, Willett, and Bar-Shalom argued for the need for a PHD-type filter which remains first-order in the states of individual targets, but which is higher-order in target number. In this paper we show that this is indeed possible. We derive a closed-form cardinalized PHD (CPHD) filter, which propagates not only the PHD but also the entire probability distribution on target number.

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Metadata

Authors
Mahler, R.
Venue
IEEE Transactions on Aerospace and Electronic Systems
Published
2007
Volume
43
Issue
99
Pages
1523-1543
ISSN
0018-9251 (ISSN-L)
OpenAlex
W2105905583
Cited by
1,020
References
28
FWCI
27.58
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: PHD filters of higher order in target number. https://app.cochat.ai/papers/10.1109/taes.2007.4407475
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Mahler, R. (2007). PHD filters of higher order in target number. IEEE Transactions on Aerospace and Electronic Systems. https://doi.org/10.1109/taes.2007.4407475

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