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A system model and inversion for synthetic aperture radar imaging
International Conference on Acoustics, Speech, and Signal Processing, 1992A system model and its corresponding inversion for synthetic aperture radar (SAR) imaging are presented. The system model incorporates the spherical nature of a radar's radiation pattern at far field. The inverse method based on this model performs a spatial Fourier transform (Doppler processing) on the recorded signals with respect to the available ...
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0.2 THz stepped frequency inverse synthetics aperture radar imaging
High Power Laser and Particle Beams, 2013A 0.2 THz stepped frequency radar imaging system with 12 GHz bandwidth which uses inverse synthetic aperture to realize two-dimensional high resolution imagery is proposed and designed. The results of Matlab simulation based on system design parameters show that the THz radar imaging system could realize two-dimensional high resolution imagery of the ...
曾邦泽 Zeng Bangze +3 more
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Automatic aircraft landing using interferometric inverse synthetic aperture radar imaging
Proceedings., International Conference on Image Processing, 1996This paper presents an interferometric processing of an aircraft's monostatic and bistatic inverse synthetic aperture radar (ISAR) signatures for automatic landing. The aircraft's squint angle in this ISAR imaging problem is near 90 degrees . We show that this extreme squint angle does not pose any problem for the ISAR Fourier-based (wavefront ...
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Inverse Synthetic Aperture Radar Imaging Using Fourier Transform Technique
2019 1st International Conference on Innovations in Information and Communication Technology (ICIICT), 2019Inverse Synthetic Aperture Radar (ISAR) imaging techniques are used to estimate the target spatial image using target backscatter data. In the ISAR measurement environment, the target is often modeled as a collection of point scatterers to take advantage of the Fourier relationship between scatterer location and measured backscatter data. The technique
Priyanka Shakya, A. A. Bazil Raj
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Inverse synthetic aperture radar imaging of nonuniformly rotating targets
Optical Engineering, 1996Range-Doppler imaging is the basic method of inverse syn- thetic aperture radar, which is based on the uniform rotation of targets. Nonuniform rotation can occur to maneuvering targets, which produces smeared images. A constantly acceleratively rotating model is used here instead of the traditional uniformly rotating model.
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Range Doppler and Image Autofocusing for FMCW Inverse Synthetic Aperture Radar
IEEE Transactions on Aerospace and Electronic Systems, 2011Inverse synthetic aperture radar (ISAR) is a well-known technique for obtaining high-resolution radar images. ISAR techniques have been successfully applied in the recent past in combination with pulsed coherent radar. In order to be more appealing to both civilian and military fields, imaging sensors are required to be low cost, low powered, and ...
GIUSTI, ELISA, MARTORELLA, MARCO
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Flexible Sparse Representation Based Inverse Synthetic Aperture Radar Imaging
2020The motion of target rotation entitles different Doppler frequencies for scatterers located in cross-range domain. Due to this fact, we can produce an un-scaled target image by using the technique of inverse synthetic aperture imaging (ISA). However, the rotation also smears the image of the target since it can easily cause unwanted range migration and
Lu Wang, Guoan Bi, Xianpeng Wang
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Inverse Synthetic Aperture Radar Imaging: Principles, Algorithms and Applications
2014Based on the authors' 20 years' research work on Inverse Synthetic Aperture Radar (ISAR) imaging of moving targets and non-cooperative target recognition, this book provides readers with knowledge of various algorithms of ISAR imaging of targets and implementation with MATLAB.
Chen, V, MARTORELLA, MARCO
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Sparse Aperture Inverse Synthetic Aperture Radar Imaging Based on Gridless Compressive Sensing
2019 International Applied Computational Electromagnetics Society Symposium - China (ACES), 2019Under the condition of sparse aperture, the traditional inverse synthetic aperture radar (ISAR) imaging method suffers from the sidelobe. Compressive sensing (CS) is a method to solve this problem. The traditional CS algorithm assumes that the strong scattering point of the target is located on the grid.
Weitao Wu, Zhaolong Li
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Imaging of concrete specimens using inverse synthetic aperture radar
AIP Conference Proceedings, 2000Radar Measurement results of laboratory size concrete specimens are presented in this paper. The purpose of this research work is to study various aspects of the radar method in an effort to develop an improved radar system for nondestructive testing of concrete structures.
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