NDLI: Three-dimensional super resolution ISAR imaging based on 2D unitary ESPRIT scattering centre extraction technique

Content Provider	IET Digital Library
Author	Zhao, Jia Zhang, Min Wang, Xin Cai, Zhaohui Nie, Ding
Abstract	Two-dimensional inverse synthetic aperture radar (2D ISAR) system can produce 2D electromagnetic images of a target, while failed to provide the 3D information. In this study, a novel method for 3D super resolution ISAR imaging is proposed via employing 2D U-estimation of signal parameters via rotational invariance technique (U-ESPRIT) and slice principle. First, the 3D scattered field data tensor is converted into a set of 2D matrix by stacking slices of the 3D data along one specific dimension. Then, 2D U-ESPRIT is applied to extract isolated scatterers from each slice. Combined with least-square method, complex scattering amplitudes are also estimated. Finally, 3D reconstructed scattering centres model with specific locations and complex scattering amplitudes is obtained, which can characterise the target to a great extent. The reverse process, reconstruction of the 3D ISAR image, can be readily done in real time by means of the extracted scattering centres. Experimental results are presented to demonstrate the effectiveness of the proposed algorithm.
Starting Page	98
Ending Page	106
Page Count	9
ISSN	17518784
Volume Number	11
e-ISSN	17518792
Issue Number	Issue 1, Jan (2017)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-rsn/11/1
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-rsn.2016.0049
Journal	IET Radar, Sonar & Navigation
Publisher Date	2016-06-01
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	2D Electromagnetic Image 2D Matrix 2D U-ESPRIT 2D Unitary ESPRIT Scattering Centre Extraction Technique 3D ISAR Image Reconstruction 3D Scattered Field Data Tensor Complex Scattering Amplitude Electromagnetic Wave Scattering Image Reconstruction Image Resolution Interpolation And Function Approximation Inverse Synthetic Aperture Radar Isolated Scatterer Isolation Least Squares Approximation Least-square Method Linear Algebra Matrix Algebra Numerical Analysis Optical, Image And Video Signal Processing Radar Equipment Radar Imaging Radar Resolution Radar Theory Radio Wave Propagation Reverse Process Signal Parameter Via Rotational Invariance Technique Slice Principle Synthetic Aperture Radar System And Application Tensors Three-dimensional Super Resolution ISAR Imaging
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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