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Time Domain Scattering And Radar Cross Section Calculations For A Thin Coated Perfectly Conducting Plate
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Author :National Aeronautics and Space Adm Nasa Publisher :Independently Published ISBN 13 :9781792949456 Total Pages :26 pages Book Rating :4.9/5 (494 download)
Book Synopsis Time Domain Scattering and Radar Cross Section Calculations for a Thin, Coated Perfectly Conducting Plate by : National Aeronautics and Space Adm Nasa
Download or read book Time Domain Scattering and Radar Cross Section Calculations for a Thin, Coated Perfectly Conducting Plate written by National Aeronautics and Space Adm Nasa and published by Independently Published. This book was released on 2019-01-04 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: Radar cross section (RCS) calculations for flat, perfectly conducting plates are readily available through the use of conventional frequency domain techniques such as the Method of Moments (MOM). However, if the plate is covered with a dielectric material that is relatively thick in comparison with the wavelength in the material, these frequency domain techniques become increasingly difficult to apply. The application is presented of the Finite Difference Time Domain (FDTD) technique to the problem of electromagnetic scattering and RCS calculations from a thin, perfectly conducting plate that is coated with a thick layer of lossless dielectric material. Both time domain and RCS calculations are presented and discussed. Luebbers, Raymond J. and Beggs, John H. NASA-CR-190106, NAS 1.26:190106 NAG1-1221...
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 804 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Book Synopsis Methods of Radar Cross-section Analysis by : J.W. Jr. Crispin
Download or read book Methods of Radar Cross-section Analysis written by J.W. Jr. Crispin and published by Elsevier. This book was released on 2013-06-11 with total page 441 pages. Available in PDF, EPUB and Kindle. Book excerpt: Methods of Radar Cross-section Analysis
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1992 with total page 1602 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monthly Catalogue, United States Public Documents by :
Download or read book Monthly Catalogue, United States Public Documents written by and published by . This book was released on 1993 with total page 1786 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monthly Catalog of United States Government Publications by : United States. Superintendent of Documents
Download or read book Monthly Catalog of United States Government Publications written by United States. Superintendent of Documents and published by . This book was released on 1993 with total page 1072 pages. Available in PDF, EPUB and Kindle. Book excerpt: February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index
Book Synopsis Government Reports Annual Index by :
Download or read book Government Reports Annual Index written by and published by . This book was released on 1993 with total page 1834 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :W. Ross Stone Publisher :Institute of Electrical & Electronics Engineers(IEEE) ISBN 13 : Total Pages :554 pages Book Rating :4.3/5 (91 download)
Book Synopsis Radar Cross Sections of Complex Objects by : W. Ross Stone
Download or read book Radar Cross Sections of Complex Objects written by W. Ross Stone and published by Institute of Electrical & Electronics Engineers(IEEE). This book was released on 1990 with total page 554 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis International Aerospace Abstracts by :
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1999 with total page 974 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Radar Cross Section of a Perfectly Conducting, Flat, Polygonal Plate Over a Dielectric, Lossy Half Space: A Closed Form, Physical Optics Expression by : Hristos T. Anastassiu
Download or read book Radar Cross Section of a Perfectly Conducting, Flat, Polygonal Plate Over a Dielectric, Lossy Half Space: A Closed Form, Physical Optics Expression written by Hristos T. Anastassiu and published by . This book was released on 2002 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Physical Optics approximation is employed in the derivation of a closed form expression for the Radar Cross Section (RCS) of a flat, polygonal, perfectly conducting (PEC) plate, located over a dielectric, possibly lossy half space. The well-known "four-path model" is invoked in a first order approximation of the half space contribution to the scattering mechanisms. Numerical results are successfully compared to a reference, Moment Method solution. The analytical expressions derived can facilitate very fast RCS calculations for realistic scatterers, such as ships in a sea environment, or aircraft flying low over the ground.
Book Synopsis Radar Cross Section Analysis and Control by : Asoke K. Bhattacharyya
Download or read book Radar Cross Section Analysis and Control written by Asoke K. Bhattacharyya and published by Artech House Radar Library (Ha. This book was released on 1991 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: This reference describes techniques for controlling the RCS of targets, provides analytical methods for estimating RCS, develops models for the design of low RCS targets and antennas, and discusses several RCS enhancement techniques.
Book Synopsis Theory and Applications of the 3-Dimensional Finite-Difference Time- Domain Method by :
Download or read book Theory and Applications of the 3-Dimensional Finite-Difference Time- Domain Method written by and published by . This book was released on 1992 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 3-dimensional finite-difference time-domain method is a numerical method for solving electromagnetic penetration and scattering problems. It uses a finite difference representation of the time dependent Maxwell equations. The object of interest is embedded in a lattice and the time is divided in discrete intervals. By applying the finite-difference equations for every time step the propagation and scattering of waves is simulated. In this report the 3- dimensional FD-TD method and its algorithms are explained. Results are presented for a perfectly conducting plate, cube and wedge and for a dielectric layered sphere. The calculated results agree with experimental and, exact theoretical results. Numerical computations, Finite difference method, Scattering of electromagnetic waves, Maxwell equation, Radar cross section, Time domain method, Boundary conditions.
Book Synopsis Ultra-Wideband Radar by : Bruce Noel
Download or read book Ultra-Wideband Radar written by Bruce Noel and published by CRC Press. This book was released on 1991-09-06 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt: This unique book features 37 full-length, peer-reviewed versions of papers presented at the First Los Alamos Symposium on Ultra-Wideband Radar. The purpose of the symposium was to offer an open, unbiased forum where researchers in areas connected to ultra-wideband radar (UWBR) could present results of their work and exchange ideas. The papers published from the proceedings illuminate the breadth and depth of the topic and cover seven general areas: fundamental electromagnetic theory; computational electromagnetics and code development; signal propagation, scattering, and reception; new technologies, advanced arrays, and imaging; signal processing and radar systems; and applications and testing. The book will provide stimulating reading for scientists, engineers, managers, and students working with UWBR.
Download or read book Radio Science written by and published by . This book was released on 2003-12 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Science Abstracts written by and published by . This book was released on 1993 with total page 980 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Numerical Solutions of Electromagnetic Problems by Integral Equation Methods and Finite-difference Time-domain Method by : Xiaoyi Min
Download or read book Numerical Solutions of Electromagnetic Problems by Integral Equation Methods and Finite-difference Time-domain Method written by Xiaoyi Min and published by . This book was released on 1989 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Time-domain Analysis of Multiple Scattering Effects on the Radar Cross Section (RCS) of Objects in a Random Medium by : Chenxin Su
Download or read book Time-domain Analysis of Multiple Scattering Effects on the Radar Cross Section (RCS) of Objects in a Random Medium written by Chenxin Su and published by . This book was released on 2020 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation presents a theory of the time-domain radar cross section (RCS) of large conducting objects in discrete random media. The time-domain formula is obtained by applying the inverse Fourier transform of the two-frequency mutual coherence function (MCF) which is derived from both the 2nd order Rytov approximation and the strong fluctuation theory. The general formulation contains the 4th order moment which includes the correlation between the forward and the backward waves. The 4th order moment can be reduced to the summation of the 2nd order moments by assuming the fields are circular complex Gaussian random variables. The stochastic Green's function is simplified using the parabolic equation (PE) approximation, and the sizes of the conducting objects are large in terms of wavelength; therefore, the Kirchhoff approximation is applicable for calculating the surface fields. This theory includes both the backscattering enhancement and the time-domain shower curtain effect that are not normally considered in the conventional theory. Numerical examples of the time-domain RCS of a conducting square plate in a discrete random medium characterized by the Gaussian phase function are shown to highlight the random media effects on the time-domain waveforms including time delay and pulse broadening in terms of optical depth and random medium location. Numerical results show that both pulse arrival time and pulse broadening increase significantly when the random media is placed far away from the object. This degradation of the image quality, known as the shower curtain effect, can be explained by the characteristics of the incoherent component.
