Results 231 to 240 of about 81,814 (282)
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A C-band inverse synthetic aperture radar system
Proceedings of International Radar Conference, 2002This paper is devoted to a C-Band ground-based inverse synthetic aperture radar (C-ISAR) system, which has been developed by the Beijing Institute of Radio Measurement (BIRM). Through off-line processing of the real image data collected from the C-ISAR system, two-dimensional radar imaging of observable airborne targets with 0.5 m /spl times/0.5 m ...
Huan Huai, Lin Pingping, Lu Guochuan
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Cross-range scaling of inverse synthetic aperture radar
Proceedings of National Aerospace and Electronics Conference (NAECON'94), 2002This paper investigates the problem of cross-range scaling of inverse synthetic aperture radar. It is very important to target classification and recognition via ISAR. The cross-range scale of ISAR depends on both radar wavelength and rotating angle of target relative to radar-line-of-sight (RLOS) during the total coherent processing time.
Zhishun She, Zhaoda Zhu
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Inverse Synthetic Aperture Radar imaging at 580 GHz
2008 33rd International Conference on Infrared, Millimeter and Terahertz Waves, 2008We have demonstrated sub-centimeter resolution inverse synthetic aperture radar (ISAR) imaging using a 580 GHz, frequency modulated continuous wave (FMCW) radar. This ISAR technique uses pulse compression possible with the FMCW waveform to achieve resolution in range, and exploits rotation of the target to achieve resolution in cross-range.
J.R. Bennett +6 more
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Inverse synthetic aperture radar imaging of maneuvering targets
Optical Engineering, 1998Range Doppler imaging, a basic method used in inverse syn- thetic aperture radar (ISAR), is based on the uniform rotation model of a target. The rotation velocity and axis of a maneuvering aircraft often vary with time. Traditional imaging methods may blur the target image and even render it beyond recognition.
Genyuan Wang, Lin Luo, Zheng Bao
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Autofocus algorithm of inverse synthetic aperture radar using entropy [PDF]
Electronics and Communications in Japan (Part I: Communications), 2000 Inverse synthetic aperture radar is an imaging radar in which the radio image is derived by utilizing the Doppler effect produced by change of the target aspect. When the target is accelerated, the resolution in this radar is degraded due to the frequency modulation of the received signal.
Masafumi Iwamoto +2 more
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Inverse Synthetic Aperture Radar Imaging Using a Deep ADMM Network
International Radar Symposium, 2019In the past decade, the compressive sensing (CS) based ISAR imaging methods have gained much interest due to the capability of obtaining high-quality images with under-sampled data.
Changyu Hu +4 more
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Inverse synthetic aperture radar imaging of satellites
International Journal of Imaging Systems and Technology, 1998We present a scheme for radar imaging of satellites by the inverse synthetic aperture radar technique. We include some general principles in image formation when dealing with microwave-scattering experiments, such as radar observation of a satellite, so that the article is not confined to the radar community.
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Compressive Sensing for Inverse Synthetic Aperture Radar Imaging
2017In the last few decades, the increasing demand for high-resolution images in applications such as automatic target recognition (ATR) and automatic target classification (ATC) for surveillance and homeland security has attracted the attention of the research community worldwide [35].
Bacci, Alessio +5 more
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Analysis of jamming on inverse synthetic aperture radar (ISAR)
SPIE Proceedings, 2005Inverse synthetic aperture radar (ISAR) is a powerful means in target identifying, especially the target in the air, which can image the moving target. There is little study on modeling and resistance technique according to ISAR in China. This paper establishes a model of ISAR system, and then studies on some valid jamming technique.
Jian-yu Yang, Zhou-an Han, Yi-ming Pi
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Optimal Sensor Positioning for Inverse Synthetic Aperture Radar
IEEE Transactions on Aerospace and Electronic Systems, 2013Noncooperative target recognition (NCTR) is often based on the use of inverse synthetic aperture radar (ISAR) images. Although ISAR systems are also able to provide an image of the target when the target's motions are not known a priori, the interpretation of the obtained image is not straightforward, and therefore, the target recognition becomes less ...
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