Joint Cross-Range Scaling and 3D Geometry Reconstruction of ISAR Targets Based on Factorization Method

Traditionally, the factorization method is applied to reconstruct the 3D geometry of a target from its sequential inverse synthetic aperture radar images. However, this method requires performing cross-range scaling to all the sub-images and thus has a large computational burden. To tackle this prob...

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Publié dans:IEEE transactions on image processing : a publication of the IEEE Signal Processing Society. - 1992. - 25(2016), 4 vom: 28. Apr., Seite 1740-50
Auteur principal: Lei Liu (Auteur)
Autres auteurs: Feng Zhou, Xue-Ru Bai, Ming-Liang Tao, Zi-Jing Zhang
Format: Article en ligne
Langue:English
Publié: 2016
Accès à la collection:IEEE transactions on image processing : a publication of the IEEE Signal Processing Society
Sujets:Journal Article Research Support, Non-U.S. Gov't
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520 |a Traditionally, the factorization method is applied to reconstruct the 3D geometry of a target from its sequential inverse synthetic aperture radar images. However, this method requires performing cross-range scaling to all the sub-images and thus has a large computational burden. To tackle this problem, this paper proposes a novel method for joint cross-range scaling and 3D geometry reconstruction of steadily moving targets. In this method, we model the equivalent rotational angular velocity (RAV) by a linear polynomial with time, and set its coefficients randomly to perform sub-image cross-range scaling. Then, we generate the initial trajectory matrix of the scattering centers, and solve the 3D geometry and projection vectors by the factorization method with relaxed constraints. After that, the coefficients of the polynomial are estimated from the projection vectors to obtain the RAV. Finally, the trajectory matrix is re-scaled using the estimated rotational angle, and accurate 3D geometry is reconstructed. The two major steps, i.e., the cross-range scaling and the factorization, are performed repeatedly to achieve precise 3D geometry reconstruction. Simulation results have proved the effectiveness and robustness of the proposed method 
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700 1 |a Xue-Ru Bai  |e verfasserin  |4 aut 
700 1 |a Ming-Liang Tao  |e verfasserin  |4 aut 
700 1 |a Zi-Jing Zhang  |e verfasserin  |4 aut 
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