Results 71 to 80 of about 17,009 (117)
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Radar cross-sectional study using noise radar
SPIE Proceedings, 2015A noise radar system is proposed with capabilities to measure and acquire the radar cross-section (RCS) of targets. The proposed system can cover a noise bandwidth of near DC to 50 GHz. The noise radar RCS measurements were conducted for selective targets like spheres and carpenter squares with and without dielectric bodies for a noise band of 400MHz ...
A. P. Freundorfer +2 more
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Radar Cross Section Enhancing Structures for Automotive Radars
IEEE Antennas and Wireless Propagation Letters, 2018As automotive radar and driver assistance systems prevail, weak scattering targets such as pedestrians and bicycles can be applied with radar cross section (RCS) enhancing structures to improve road safety. Low-profile structures, which comprise straight and ring-shaped ridges mounted on metal plates, are developed in the 24 GHz band to provide the ...
Wen-Jiao Liao +4 more
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Radar Cross Section Reduction Based on Metasurface
2018A novel polarization insensitive metasurface for backscattering Radar Cross Section (RCS) reduction is designed and studied. The proposed metasurface consist of carefully arranged unit cells, which enables estimated uniform diffusion of incoming electromagnetic (EM) energy.
Xing-Long Zhang +3 more
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Radar cross section measurements of the human body for UWB radar applications
2012 IEEE International Instrumentation and Measurement Technology Conference Proceedings, 2012An experimental set-up for mono-static radar cross section measurements in the 1 – 10 GHz frequency band, employing an anechoic chamber, is presented and validated. The test range is calibrated by means of a readily available aluminum flat panel and its performance is tested against canonical metallic and lossy dielectric targets.
PIUZZI, Emanuele +3 more
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Radar cross section measurement with 77 GHz automotive FMCW radar
2016 IEEE 27th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC), 2016In this paper, radar cross section (RCS) measurement for human subjects and vehicles in 77 GHz automotive frequency modulated continuous wave (FMCW) radar system is presented. In this system, it is impossible to utilize conventional RCS definition due to high frequency band and the modulation technique used.
Seongwook Lee +3 more
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Trigonometric Approximations for the Computation of Radar Cross Sections
IEEE Transactions on Antennas and Propagation, 2004Trigonometric approximation methods for the interpolation of the far field of a scatterer lit up by plane waves are presented. The Wacker method, commonly used to determine the far field of an antenna from spherical near field measurements, is adapted to decompose the scattered field in a finite series of vector spherical harmonics.
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On Bayesian Tracking and Prediction of Radar Cross Section
IEEE Transactions on Aerospace and Electronic Systems, 2019We consider the problem of Bayesian tracking of radar cross section. The adopted observation model employs the gamma family, which covers all Swerling cases in a unified framework. State dynamics are modeled using a nonstationary autoregressive gamma process.
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The Measurement of Radar Cross Section
1994The modern design of radar systems and the development of electromagnetic theory require experimental measurement of electromagnetic scattering. In the past, such measurements were done using instrumentation radars often located a mile or more from the target of interest [5.1].
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Radar Cross Section Fundamentals
1993The radar cross section of an object exposed to a radar is a fictitious area that describes the intensity of the wave reflected back to the radar. The RCS, as it is known in the trade, can be stated in very simple terms: it is the projected area of an electrically large, perfectly conducting sphere whose echo strength would match that of the target if ...
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THE RADAR CROSS SECTION OF A SEMI-INFINITE BODY
Canadian Journal of Physics, 1960The concept of cross section as applied to a semi-infinite scattering body seems to require some clarification. The need for careful formulation of the problem arises because of the simultaneous occurrence of two characteristic lengths tending to infinity: the range from the radar to the target, and the size of the target.
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