2D Teager-Kaiser Energy Operator for the translation motion compensation in ISAR signatures

Jean-Christophe Cexus 1 Ali Khenchaf 2
1 Lab-STICC_ENSTAB_CID_TOMS
Lab-STICC - Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance
2 Lab-STICC_ENSTAB_MOM_PIM
Lab-STICC - Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance
Abstract : In this paper, a new focal quality indicator, the 2D-TKEO indicator, for the translational motion compensation is proposed. This indicator is based on the 2D Teager-Kaiser Energy Operator which represents the 'energy' of an image. In Inverse Synthetic Aperture Radar (ISAR) imaging of a non-cooperative target, the relative motion is unknown and it is therefore necessary to implement an autofocus approach to obtain high resolution imaging. This step is based on an optimization problem via the minimization of a cost function, thus making it possible to estimate the translational kinematic (speed, acceleration, jerk.. .) of the moving target. This paper describes the use of a new quadratic focal quality indicator to estimate the quality of an ISAR image. To validate our approach is presented on simulation results of a target constituted by ideal point scatterers models. The effectiveness of 2D-TKEO indicator is demonstrated on both noise-free and noisy simulations and results compared to current methods.
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https://hal-ensta-bretagne.archives-ouvertes.fr/hal-01977996
Contributeur : Jean-Christophe Cexus <>
Soumis le : vendredi 11 janvier 2019 - 11:20:41
Dernière modification le : jeudi 7 février 2019 - 15:31:37
Document(s) archivé(s) le : vendredi 12 avril 2019 - 14:24:26

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  • HAL Id : hal-01977996, version 1

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Jean-Christophe Cexus, Ali Khenchaf. 2D Teager-Kaiser Energy Operator for the translation motion compensation in ISAR signatures. 9th International Symposium on Signal, Image, Video and Communications - ISIVC'2018, Nov 2018, Rabat, Morocco. ⟨hal-01977996⟩

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