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A Minimum Range Criterion For Rcs Radar Cross Section Measurements Of A Target Dominated By Point Scatterers
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Book Synopsis A Minimum Range Criterion for RCS (Radar Cross-Section) Measurements of a Target Dominated by Point Scatterers by : B. M. Welsh
Download or read book A Minimum Range Criterion for RCS (Radar Cross-Section) Measurements of a Target Dominated by Point Scatterers written by B. M. Welsh and published by . This book was released on 1983 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis develops a minimum range criterion for radar cross-section measurements by neglecting the phase of the incident field at the target and considering only the amplitude distribution. In contrast to the traditional minimum range criterion, developed for a flat target characterized by specular reflection, the target examined in this thesis is characterized by a number of independent point scatterers located on the target surface. Instead of enforcing point by point accuracy, accuracy of the average target RCS is required, averaging over a number of measurements. The location of the point scatterers on the target are described probabilistically; the expected average measured RCS versus target range is calculated, and compared to results of a Monte-Carlo simulation. The traditional minimum range criterion is compared to the new minimum range criterion. The traditional minimum range criterion, based on phase uniformity across the target, requires minimum measurement ranges that are much larger than those ranges dictated by the new minimum range criterion for targets dominated by point scattering. (Author).
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 1984 with total page 1278 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Re-examination of Minimum Range Criteria for Radar Cross Section Measurements by : Cornell Aeronautical Laboratory
Download or read book Re-examination of Minimum Range Criteria for Radar Cross Section Measurements written by Cornell Aeronautical Laboratory and published by . This book was released on 1962 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Radar Cross Section Measurements by : Eugene F. Knott
Download or read book Radar Cross Section Measurements written by Eugene F. Knott and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 557 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Air University Abstracts of Research Reports by :
Download or read book Air University Abstracts of Research Reports written by and published by . This book was released on 1984 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Antennas and Propagation written by and published by . This book was released on 1984 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis International Symposium Digest, Antennas and Propagation by :
Download or read book International Symposium Digest, Antennas and Propagation written by and published by . This book was released on 1984 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 1984-05 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Accuracy Estimate for Radar Cross Section Measurements of Targets Modelled by Multiple Independent Scatterers in Constant Clutter by : J. N. Link
Download or read book Accuracy Estimate for Radar Cross Section Measurements of Targets Modelled by Multiple Independent Scatterers in Constant Clutter written by J. N. Link and published by . This book was released on 1983 with total page 141 pages. Available in PDF, EPUB and Kindle. Book excerpt: The error bounds for accuracy of radar cross section (RCS) measurements of targets in clutter are examined in detail. Traditional error bounds are based on precision at every individual aspect angle and on two deterministic sources (target and clutter). In this thesis a model is developed that describes the target and clutter probabilistically. The requirement of accuracy at every point is replaced by a requirement for accuracy of a running average of measured RCS values. The probability distribution of the ratio of the averaged, measured RCS to the averaged, true, free space target RCS is calculated. The standard deviation of this ratio represents how much the averaged, measured RCS data diverages from the averaged, true, free space target RCS. The results show that accuracy improves for increasing signal to clutter ratios, and also for increasing levels of averaging. Even averaging as few as eleven points, this new measure is shown to give more confidence in the measured, averaged results than the traditional approach. (Author).
Book Synopsis Radar Cross Section by : Eugene F. Knott
Download or read book Radar Cross Section written by Eugene F. Knott and published by SciTech Publishing. This book was released on 2004-06-30 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
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 Annual Index by :
Download or read book Government Reports Annual Index written by and published by . This book was released on 1984 with total page 1084 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Index to IEEE Publications by : Institute of Electrical and Electronics Engineers
Download or read book Index to IEEE Publications written by Institute of Electrical and Electronics Engineers and published by . This book was released on 1985 with total page 870 pages. Available in PDF, EPUB and Kindle. Book excerpt: Issues for 1973- cover the entire IEEE technical literature.
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 Characterization of the Target-Mount Interaction in Radar Cross Section Measurement Calibrations by : Donald W. Powers
Download or read book Characterization of the Target-Mount Interaction in Radar Cross Section Measurement Calibrations written by Donald W. Powers and published by . This book was released on 2004-03-01 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: Radar Cross Section (RCS) measurements are quintessential in understanding target scattering phenomenon. The reduced RCS of modern weapons systems stresses the capability of current RCS measurement ranges. A limiting factor that has recently become more significant is the electromagnetic coupling between a test target and the mounting hardware used to support it and control its orientation during the RCS measurement. Equally important is the electromagnetic coupling between the RCS calibration artifact and its mount, which provides an opportunity to explore the coupling phenomena without delving into operationally sensitive areas. The primary research goal was to characterize the interaction between a calibration artifact and its mounting apparatus when measuring the RCS of the calibration artifact as part of a larger RCS measurement process. Standard methods, such as vector background subtraction, do not account for this interaction. By understanding the interaction term, a more accurate measurement of target RCS may be obtained. Through careful characterization of the interaction, an additional term can be included in the vector background subtraction equation to reduce the level of uncertainty. Two techniques were developed to isolate and characterize the interaction between the target and mount. The first involves evaluating the far- zone fields scattered by the target under two conditions: the target alone and then the target with mounting hardware present. The fields are then coherently subtracted to isolate the interaction. This process was validated with measurements and computational results. The second technique involves evaluating fields on the target surface under the aforementioned conditions, which are subsequently subtracted from one another and radiated to the far-field.
Book Synopsis RCS Validation of a Missile-Shaped Target at W-Band by : Geoffrey Goldman
Download or read book RCS Validation of a Missile-Shaped Target at W-Band written by Geoffrey Goldman and published by . This book was released on 1998 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: In a comparison of measured, simulated, and theoretical calculations of radar cross section (RCS), the radar target was a simple missile shape (a cylinder with hemispherical ends). For the measurements, the target was rotated on a turntable from 5 to 365 deg in azimuth, and its RCS was measured with a W-band frequency agile instrumentation radar. (Clutter and noise in the measured RCS data were reduced by spatial filtering.) For modeling the target geometry, the ACAD (advanced computer aided design) geometric modeling program was used to create both an IGES (initial graphics exchange specification) and a facet model. For modeling the RCS, three high frequency prediction codes were used (Xpatch, CADDSCAT, and NcPTD), as well as a point scatter model. Various methods were used to process and simulate the target returns, depending upon the aspect angle. Agreement between the measured and simulated bandwidth averaged RCS values depended on the portion of the target that dominated the radar return: agreement was close for radar returns dominated by returns from the hemispherical ends of the target. However, for aspect angles near broadside to the target (for which the cylindrical part of the target dominated the returns), RCS measurements suggested an interaction between the target and the pylons supporting it.
Author :Allen E. Fuhs Publisher :AIAA (American Institute of Aeronautics & Astronautics) ISBN 13 : Total Pages :140 pages Book Rating :4.F/5 ( download)
Book Synopsis Radar Cross Section Lectures by : Allen E. Fuhs
Download or read book Radar Cross Section Lectures written by Allen E. Fuhs and published by AIAA (American Institute of Aeronautics & Astronautics). This book was released on 1984 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: Extensive graphs and notes, prepared with the designer in mind, provide insight into scattering of electromagnetic waves by various objects. Includes appropriate equations and sample calculations.
