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Filtres particulaires en contexte track-before-detect en présence de fluctuations d'amplitude de type Swerling 1 et 3

Alexandre Lepoutre 1, 2 Olivier Rabaste 1 François Le Gland 2
2 ASPI - Applications of interacting particle systems to statistics
IRMAR - Institut de Recherche Mathématique de Rennes, Inria Rennes – Bretagne Atlantique
Abstract : We address in this paper the problem of detecting and tracking a single radar target with amplitude fluctuation Swerling 1 and 3 in a Track-Before-Detect context with particle filter. Those fluctuations are difficult to take into account as they are uncoherent from measurement to measurement. Thus, conventionnal filters work on square modulus of the complexe signal to remove the unknown phase of complex amplitude and the marginalized over the law of the modulus but they lose the spatial coherence of the amplitude in the measurement. We show in this paper that complex measurements can be marginalized directly while taking into account the spatial coherence of the complex amplitude. Finally, we show the benefit of this method both in detection and in estimation via Monte-Carlo simulations.
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Conference papers
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https://hal.inria.fr/hal-00911422
Contributor : Francois Le Gland <>
Submitted on : Friday, November 29, 2013 - 11:16:29 AM
Last modification on : Tuesday, March 16, 2021 - 3:42:04 PM

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  • HAL Id : hal-00911422, version 1

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Alexandre Lepoutre, Olivier Rabaste, François Le Gland. Filtres particulaires en contexte track-before-detect en présence de fluctuations d'amplitude de type Swerling 1 et 3. Actes du 24ème Colloque sur le Traitement du Signal et des Images, Brest 2013, GRETSI, Sep 2013, Brest, France. ⟨hal-00911422⟩

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