Radar Cross Section (RCS) of Complex Objects PDF Download

Author: Don D. Vo
Publisher:
ISBN:
Category :
Languages : en
Pages : 102

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Book Description

Author: W. Ross Stone
Publisher: Institute of Electrical & Electronics Engineers(IEEE)
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 554

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Book Description

Author: Robert Eigel
Publisher:
ISBN: 9781423544326
Category :
Languages : en
Pages : 209

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Book Description
This research addresses some phenomenological aspects of bistatic scattering from a complex object with an emphasis on specular, shadowing, dihedral, and cavity effects. Five targets are investigated for their simplicity and ability to highlight certain scattering phenomena. Direct measurements of scattered electromagnetic energy and simulation data is gathered for a frequency bandwidth of 6-18 GHz. Both ray tracing and scattering center approaches are used to describe the bistatic mechanisms. An appraisal of the effectiveness and utility of the monostatic-to-bistatic equivalence theorems (Kell's and Crispin's) and several commercial scattering prediction codes is also accomplished. Simulation data is generated from two different electromagnetic scattering prediction codes, Xpatch and FISC. Xpatch is a physical optics (PO) based code while FISC is a more rigorous method of moments (MOM) based tool. This data is utilized to achieve three objectives: (1) study Kell's and Crispin's monostatic-to-bistatic equivalence theorems (MBET) for a complex object through theoretical derivations and comparison of measured and simulated data sets, (2) evaluate the performance of Xpatch and FISC through direct comparisons to measured data, and (3) gain insight into the bistatic scattering phenomenology while extracting appropriate rules-of-thumb for bistatic scattering predictions. These rules of thumb are proposed to help guide the reader in evaluating the bistatic RCS of complex shapes in general.

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.

Author: Robert L. Eigel (CAPT, USAF.)
Publisher:
ISBN:
Category :
Languages : en
Pages : 378

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Book Description

Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 209

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Book Description
This research addresses some phenomenological aspects of bistatic scattering from a complex object with an emphasis on specular, shadowing, dihedral, and cavity effects. Five targets are investigated for their simplicity and ability to highlight certain scattering phenomena. Direct measurements of scattered electromagnetic energy and simulation data is gathered for a frequency bandwidth of 6-18 GHz. Both ray tracing and scattering center approaches are used to describe the bistatic mechanisms. An appraisal of the effectiveness and utility of the monostatic-to-bistatic equivalence theorems (Kell's and Crispin's) and several commercial scattering prediction codes is also accomplished. Simulation data is generated from two different electromagnetic scattering prediction codes, Xpatch and FISC. Xpatch is a physical optics (PO) based code while FISC is a more rigorous method of moments (MOM) based tool. This data is utilized to achieve three objectives: (1) study Kell's and Crispin's monostatic-to-bistatic equivalence theorems (MBET) for a complex object through theoretical derivations and comparison of measured and simulated data sets, (2) evaluate the performance of Xpatch and FISC through direct comparisons to measured data, and (3) gain insight into the bistatic scattering phenomenology while extracting appropriate rules-of-thumb for bistatic scattering predictions. These rules of thumb are proposed to help guide the reader in evaluating the bistatic RCS of complex shapes in general.

Author: Institute of Electrical and Electronics Engineers
Publisher:
ISBN:
Category :
Languages : en
Pages : 189

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Book Description

Author: Elmo E. Garrido
Publisher:
ISBN: 9781423534389
Category :
Languages : en
Pages : 85

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Book Description
This implementation of the physical optics approximation method for predicting the radar cross section (RCS) of complex objects utilizes the scientific computational features of MATLAB and its Graphical User Interface (Gui) functions to provide an error-free encoding of input parameters and efficient calculation. The POFACETS GUI provides a convenient tool for both students and electromagnetic professionals to design complex models by representing its component parts as triangular facets and offers options for defining the surface roughness of the scattering object. The GUI calculates the monostatic or bistatic radar cross section of the modeled object based on certain radar frequencies and parameters of interest, creates a variety of plots for the model geometry and its RCS measurement, and provides additional functionalities to enhance visualization of the object and check for accuracy of data. Various help windows and messages are available to the user to serve as guide in the efficient use of the GUI. The simplicity of the GUI design does not require the user to have a detailed understanding of the various steps involved in the RCS calculation.

Author: Eugene F. Knott
Publisher: Springer Science & Business Media
ISBN: 1468499041
Category : Science
Languages : en
Pages : 557

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Book Description
The original campus of the University of Michigan was nearly a perfect square about a half-mile along a side. A street-sized walk, appropriately called the Diag, runs diagonally across this square, connecting its southeast and northwest corners. In 1904 a new engineering building was either started or finished (I do not remember which) to house classrooms. When another engineering building was built on the expanded campus across the street from it many years later, the old building came to be known as West Engine, to distinguish it from the new East Engine. Old West Engine is (or maybe by now, was) a four-story, L-shaped structure that stood at the southeast corner of the original campus. It was built with an arch in it to straddle the Diag at the apex of the L. You walked over the Engineering Arch to get from one leg of the L to the other if you were inside the building, and you walked under it when you entered the campus from the southeast corner. Affixed to the masonry wall of the arch was a plaque I often noted in passing. It bore a quote attributed to Horace Greeley (1811-1872), who I did not know at the time was the founder, editor, and publisher of the New York Tribune. It said, simply, Young man, when theory and practice differ, use your horse sense. The suggestion seems worthy of an exclamation point instead of a period, but I do not remember if it had one.

Author: O. Weiland
Publisher:
ISBN:
Category :
Languages : en
Pages : 12

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Book Description
Minimizing the Radar Cross Section (RCS) of a new warship, it is important to determine the expected RCS in the phase of design because of high development costs. Furthermore it is desirable to identify design dependent scattering centers and analyse their mode of action. This is probably done most effectively by a graphical representation of the scattering mechanisms on a 3- dimensional drawing of the target itself. The paper summarizes the development of a computer code that combines graphical representation methods with well established theoretical techniques to predict the RCS for targets of complex structure. The tool is based on physical optics, physical theory of diffraction, ray tracing and it accounts for multiple shadowing and scattering up to triple bounce. The method of component technique using primitives is applicable to electrically large bodies and the calculation is limited to the monostatic case for perfectly conducting surfaces. Object coherence is used to reduce computation time during the solution of the hidden surface problem.