Results 21 to 30 of about 141,741 (141)

Statistical analysis of hypersonic glide vehicle radar cross section

IET Radar, Sonar & Navigation
The capability to design, manufacture and test Hypersonic Glide Vehicles (HGVs) has been demonstrated by a number of nations, and they are increasingly forming part of military inventories, potentially offering capabilities highly unique to this ...
Jonathan Pinto, Neil L. Whyman, Matthew A. Ritchie, Hugh Griffiths   +3 more
doaj   +1 more source

System‐based specifications for better design of ground‐penetrating radar antennas

IET Microwaves, Antennas & Propagation, 2023
Currently, no publicly available comprehensive set of specifications exists for the design of ground‐penetrating radar antennas. Specifications are presented and derived for the design of a ground‐penetrating radar antenna based on the antenna's ...
Samuel Wagner, Ababil Hossain, Stephen Pancrazio, Anh‐Vu Pham   +3 more
doaj   +1 more source

Non‐Rayleigh Statistics of Ultrasonic Backscattered Echo from Tissues [PDF]

, 1994
The envelope of the backscattered signal from tissues can exhibit non‐Rayleigh statistics if the number density of scatterers is small or if the variations in the scattering cross sections are random. The K distribution which has been used extensively in
Molthen, Robert C., Narayanan, V. Manjo, Reid, J. M., Shankar, P. M.   +3 more
core   +1 more source

Characterization of surface radar cross sections at W-band at moderate incidence angles [PDF]

, 2017
This paper presents the results of a recent flight campaign conducted over the Great Lakes region and reports the first observations of the W-band normalized backscattered cross section ( σ0 ) for V and H polarization and the linear depolarization ratios
Battaglia, Alessandro, D'Adderio, Leo Pio, Fois, Franco, Illingworth, Anthony, Midthassel, Rolv, Nguyen, Cuong, Wolde, Mengistu   +6 more
core   +1 more source

Deep Network for Simultaneous Decomposition and Classification in UWB-SAR Imagery

, 2018
Classifying buried and obscured targets of interest from other natural and manmade clutter objects in the scene is an important problem for the U.S. Army.
Guo, Tiantong, Monga, Vishal, Nguyen, Lam, Vu, Tiep   +3 more
core   +1 more source

Impact of 3D model simplifications on the determination of numerical accuracy of the radar cross‐section in aerial target recognition issues

IET Radar, Sonar & Navigation
Method of moments is one of the most useful approaches for radar cross‐section (RCS) simulation, allowing, that is, the computation of the scattering of real objects from 3D models. However, it is limited by computer memory and computation time.
Witold Bużantowicz, Marta Walenczykowska   +1 more
doaj   +1 more source

Joint Direction-of-Departure and Direction-of-Arrival Estimation in a UWB MIMO Radar Detecting Targets with Fluctuating Radar Cross Sections

International Journal of Antennas and Propagation, 2014
This paper presents a joint direction-of-departure (DOD) and direction-of-arrival (DOA) estimation in a multiple-input multiple-output (MIMO) radar utilizing ultra wideband (UWB) signals in detecting targets with fluctuating radar cross sections (RCS ...
Idnin Pasya, Naohiko Iwakiri, Takehiko Kobayashi   +2 more
doaj   +1 more source

A Novel Ship Detector Based on the Generalized-Likelihood Ratio Test for SAR Imagery

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2017
Ship detection with synthetic aperture radar (SAR) images, acquired at different working frequencies, is presented in this paper where a novel technique is proposed based on the generalized-likelihood ratio test (GLRT).
Pasquale Iervolino, Raffaella Guida
doaj   +1 more source

Detection of Electronic Devices Using FMCW Nonlinear Radar

Sensors, 2022
Nonlinear radars can be utilized to detect electronic devices, which are difficult to detect with conventional radars due to their small radar cross sections (RCS).
Kyuho Cha, Sooyoung Oh, Hayoung Hong, Hongsoo Park, Sun K. Hong   +4 more
doaj   +1 more source

Feasibility study and design concept for an orbiting ice-penetrating radar sounder to characterize in three-dimensions the Europan ice mantle down to (and including) any ice/ocean interface [PDF]

, 1999
This report presents a radar sounding model based on the range of current working hypotheses for the nature of Europa's icy shell.Institute for ...
Blankenship, D.D., Edwards, B.C., Geissler, P.E., Gurnett, D., Johnson, W.T.K., Kim, Y., Kofman, W., Moore, J.C., Morse, D.L., Pappalardo, R.T., Picardi, G., Raney, R.K., Rodriguez, E.R., van Zyl, J., Weertman, J., Zebker, H.A.   +15 more
core   +1 more source