Development of a Finite-difference Time-domain Solver for Maxwell's Equations with Application to Radar Signature Prediction PDF Download
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Author: Hoang Vinh
Publisher:
ISBN:
Category :
Languages : en
Pages : 238
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Book Description
Author: Hoang Vinh
Publisher:
ISBN:
Category :
Languages : en
Pages : 238
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Book Description
Author: Frederick G. Harmon
Publisher:
ISBN: 9781423573982
Category : Electromagnetism
Languages : en
Pages : 169
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Book Description
Concurrent engineering approaches for the disciplines of computational fluid dynamics (CFD) and electromagnetics (CEM) are necessary for designing future high-performance, low-observable aircraft. A characteristic- based finite-volume time-domain (FVTD) computational algorithm, developed for CFD and now applied to CEM, is implemented to analyze the radar cross section (RCS) of two three-dimensional objects, the ogive and cone-sphere. The FVTD formulation implements a Monotone Upstream-Centered Scheme for Conservation Laws (MUSCL) algorithm for the flux evaluation and a Runge-Kutta multi-stage scheme for the time integration. Developmental FVTD work for the thesis focused on algorithm development to analyze scattering and obtain RCS data for closed- surface perfect electric conductor (PEC) 3-D objects using either a Gaussian pulse or sinusoid incident wave. In addition, specification of the direction and polarization of the incident wave gives monostatic and bistatic RCS results. Convergence and threshold checks end the simulation run to ensure accurate computation of the RCS. Validation of the characteristic-based FVTD formulation and code for electromagnetic scattering problems is completed by comparing RCS results obtained from the FVTD code to Moment Method and empirical RCS data. The FVTD results for the ogive and cone-sphere are within 3.0 dB of the MoM results and 3.1 dB of the empirical RCS results. Accurate FVTD computations of diffraction, traveling waves, and creeping waves require a surface grid point density of 15-30 cells/lamda.
Author:
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ISBN:
Category : Laser-plasma interactions
Languages : en
Pages : 488
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Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 492
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Book Description
Author: Guilin Sun
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: Bassem R. Mahafza
Publisher: CRC Press
ISBN: 1000528715
Category : Technology & Engineering
Languages : en
Pages : 690
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Book Description
The first edition of this ground-breaking and widely used book introduced a comprehensive textbook on radar systems analysis and design providing hands-on experience facilitated by its companion MATLAB® software. The book very quickly turned into a bestseller. Based on feedback provided by several users and drawing from the author's own teaching experience, the 4th edition adopts a new approach. The presentation in this edition takes the reader on a scientific journey whose major landmarks comprise the different radar sub-systems and components. Along the way, the different relevant radar subsystems are analyzed and discussed in great level of detail. Understanding the radar signal types and their associated radar signal processing techniques are key to understating how radar systems function. Each chapter provides the necessary mathematical and analytical coverage required for a sound understanding of radar theory. Additionally, dedicated MATLAB® functions/programs enhance the understanding of the theory and establish a means to perform radar system analysis and design trades. The software provides users with numerous varieties of graphical outputs. Additionally, a complete set of MATLAB® code that generates all plot and graphs found within the pages of this textbook are also available. All companion MATLAB® code can be downloaded from the book’s web page. The 4th Edition: •Takes advantage of the new features offered by MATLAB® 2021 release •Brings the text to a current state of the art •Incorporates much of the feedback received from users using this book as a text and from practicing engineers; accordingly, several chapters have been rewritten •Presents unique topics not found in other books •Maintains a comprehensive and exhaustive presentation •Restructures the presentation to be more convenient for course use. •Provides a post-course reference for engineering students as they enter the field •Offers a companion solutions manual for instructors The 4th edition will serve as a valuable tool to students and radar engineers by helping them better analyze and understand the many topics of radar systems. This book is written primarily as a graduate-level textbook, although parts of it can be used as a senior level course. A companion solutions manual has been developed for use by instructors.
Author:
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 740
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 108
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Book Description
This report contains the development of an unstructured grid-based finite-volume integration scheme for solving the time-domain Maxwell's equations to study a myriad of problems in electromagnetics. The principal application of this technology is the prediction of radar cross section (RCS) of low observable platforms. This work was performed under the AFOSR contract F49620-93-C-0066.
Author:
Publisher:
ISBN:
Category : Dissertation abstracts
Languages : en
Pages : 800
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Book Description
Author: Eugene F. Knott
Publisher: SciTech Publishing
ISBN: 1891121251
Category : Technology & Engineering
Languages : en
Pages : 628
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Book Description
The leading text and reference on radar cross section (RCS) theory and applications, this work presents a comparison of two radar signal strengths. One is the strength of the radar bean sweeping over a target, the other is the strength of the reflected echo senses by the receiver. This book shows how the RCS "gauge" can be predicted for theoretical objects.
