Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
An Estimation And Verification Of Vessel Radar Cross Sections For Hf Surface Wave Radar
Download An Estimation And Verification Of Vessel Radar Cross Sections For Hf Surface Wave Radar full books in PDF, epub, and Kindle. Read online An Estimation And Verification Of Vessel Radar Cross Sections For Hf Surface Wave Radar ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis An Estimation and Verification of Vessel Radar-Cross-Sections for HF Surface Wave Radar by :
Download or read book An Estimation and Verification of Vessel Radar-Cross-Sections for HF Surface Wave Radar written by and published by . This book was released on 2005 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: The radar cross sections (RCS) of both small and large ships for High Frequency Surface Wave Radar (HFSWR) were studied by using Numerical Electromagnetics Code [4] and by using measurements from a HFSWR system at Cape Race, Newfoundland, Canada. The results of the study indicate that Teleost, a 2405-ton Canadian Coast Guard ship, and large cargocontainer vessels (~36000 ton) have comparable RCS values at 3.1 and 4.1 MHz. This was verified by comparing Teleost signals with the reflections of seven cargo-container vessels identified during an operational evaluation of the HFSWR. The conclusion of the study is that Teleost and the large cargo-container vessels have an angle-averaged RCS of ~40dBm2, while small vessels (~1000 tons) could reasonably be characterized by an angle-averaged RCS of ~30 dBm2, in the lower end of the HF band (3-5 MHz).
Book Synopsis Estimation of the Sea Surface Radar Cross Section at HF from Second-Order Doppler Spectrum Characteristics by : D. B. Trizna
Download or read book Estimation of the Sea Surface Radar Cross Section at HF from Second-Order Doppler Spectrum Characteristics written by D. B. Trizna and published by . This book was released on 1982 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt: A technique is developed for estimating the radar cross section of the sea surface at HF (2-30 MHz) from two simple measurements made of the radar Doppler spectrum. These are: the ratio of approach/recede Bragg line energy, and the ratio of strongest Bragg line amplitude to average value amplitude of second-order backscatter at zero Doppler frequency. A nomograph is given, based on a theoretical model of second-order scatter developed by the author, which then allows one to determine the number of decibels the Bragg ocean spectral component is down from the classical Phillips asymptotic value, used here only for a reference. Comparison is made with some surface wave data for three different cases in which buoy data are available for comparison with multi-frequency radar data collected simultaneously at two different look angles. An example is also shown where such a calculation can be used to estimate the cross section of a target return existing within the same Doppler spectrum. Limitations of the technique are also discussed. (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 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 High Frequency Over-the-Horizon Radar by : Giuseppe Aureliano Fabrizio
Download or read book High Frequency Over-the-Horizon Radar written by Giuseppe Aureliano Fabrizio and published by McGraw Hill Professional. This book was released on 2013-07-09 with total page 946 pages. Available in PDF, EPUB and Kindle. Book excerpt: THE MOST COMPLETE GUIDE TO HIGH FREQUENCY OVER-THE-HORIZON RADAR Written by a leading global expert on the topic, High Frequency Over-the-Horizon Radar provides in-depth coverage of the signal processing models and techniques that have significantly advanced OTH radar technology. This pioneering work describes the fundamental principles of OTH radar design and operation, and then delves into the mathematical modeling of HF signals received by actual OTH radar systems based on experimental data analysis. Numerous examples illustrate the practical application of modern adaptive signal processing techniques to real and simulated OTH radar data. This authoritative text covers skywave and surface-wave systems and is an invaluable resource for researchers, engineers, and practitioners working with OTH radar systems and technologies.
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 Investigation of High Frequency Ship Radar Cross Section Reduction by Means of Shaping by : Dimitrios Kouteas
Download or read book Investigation of High Frequency Ship Radar Cross Section Reduction by Means of Shaping written by Dimitrios Kouteas and published by . This book was released on 1998-09-01 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this thesis is to investigate and evaluate the effectiveness of ship radar cross section (RCS) reduction in the high frequency (HF) band by means of shaping. The study is based on a computer simulation which uses the method of moments to compute the RCS of a number of conventional and shaped ship geometries. It was found that a ship with canted deckhouse walls and a standard hull had little reduction in RCS relative to a conventional ship. This result shows that shaping is not as effective at these frequencies (3-30 MHz) as it is in the optical region. The hull is the major contributor to RCS near broadside. Shaping the hull did reduce the RCS slightly for the frequencies and elevation angles investigated.
Book Synopsis The High Frequency Surface Wave Radar Cross Section for Ocean Swell by : Chengxi Shen
Download or read book The High Frequency Surface Wave Radar Cross Section for Ocean Swell written by Chengxi Shen and published by . This book was released on 2013 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Small Boat HF Radar Cross Sections by :
Download or read book Small Boat HF Radar Cross Sections written by and published by . This book was released on 1976 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt: The HF radar cross section of three small ocean-going craft were measured in full scale with the SEA ECHO radar. The measurements were made over a wide band of frequencies. Care was taken in the calibration of the system to insure accurate absolute values of cross section. This work was done in support of studies of the use of surface were over-the-horizon radar for ocean range safety surveillance. The results demonstrated a severe fall-off of cross section for these typical craft at frequencies below 4 to 5 MHz.
Book Synopsis Radar Cross Section Calculations of Traveling Surface Waves by :
Download or read book Radar Cross Section Calculations of Traveling Surface Waves written by and published by . This book was released on 1990 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: The traveling surface wave phenomenon, a significant echo mechanism for long, smooth bodies, manifests itself in the radar cross section (RCS) pattern of realistic targets for horizontal polarization and grazing angles of incidence. Existing radar cross section models do not take this scattering mechanism into account because none of the presently available theories and methods can treat traveling waves in routine fashion (see E.F. Knott, A progression of High-Frequency RCS prediction Techniques, Proc., IEEE, Vol. 73, No. 2 pp. 252-264(Feb 1985). Analytical radar cross section models for realistic targets should include this type of scattering in their calculations. This report presents a theory and an efficient method for calculating traveling surface wave contributions on a thin rod and an ogive of arbitrary length. Rectangular flat plate radiation patterns are also briefly considered. The details and necessary expressions for predicting RCS of plates will be given in a future report, where the approach will be extended to a more complex target. The theoretical approach presented here is based on the existing concepts of antenna theory and geometrical theory of diffraction. Radar cross section patterns that include traveling wave contributions for a rectangular flat plate and a rod of equal length are calculated and compared with measurements. The theoretical results and measured data show very good agreement.
Author :David C. Jenn Publisher :AIAA (American Institute of Aeronautics & Astronautics) ISBN 13 : Total Pages :536 pages Book Rating :4.F/5 ( download)
Book Synopsis Radar and Laser Cross Section Engineering by : David C. Jenn
Download or read book Radar and Laser Cross Section Engineering written by David C. Jenn and published by AIAA (American Institute of Aeronautics & Astronautics). This book was released on 2005 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt: There have been many new developments in the ten years since the first edition of Radar and Laser Cross Section Engineering was published. Stealth technology is now an important consideration in the design of all types of platforms. The second edition includes a more extensive introduction that covers the important aspects of stealth technology and the unique tradeoffs involved in stealth design. Prediction, reduction, and measurement of electromagnetic scattering from complex three-dimensional targets remains the primary emphasis of this text, developed by the author from courses taught at the Naval Postgraduate School. New topics on computational methods like the finite element method and the finite integration technique are covered, as well as new areas in the application of radar absorbing material and artificial metamaterials. Matlab [registered] software, homework problems, and a solution manual (available to instructors) supplement the text. Written as an instructional text, this book is recommended for upper-level undergraduate and graduate students. introduction to the physics and mathematics of radar cross section in order to better understand the interdisciplinary aspects of stealth. Matlab is a registered trademark of The MathWorks, Inc.
Book Synopsis Radar Cross Section Handbook by : George T. Ruck
Download or read book Radar Cross Section Handbook written by George T. Ruck and published by . This book was released on 1970 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 1995 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Radar Cross Sections of Surface Ships at Grazing Incidence by : F. D. Queen
Download or read book Radar Cross Sections of Surface Ships at Grazing Incidence written by F. D. Queen and published by . This book was released on 1971 with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt: The radar-cross-section (RCS) values of seven classes of surface ships have been determined at grazing incidence at frequencies of 1300, 2800, and 9225 mhz for horizontal polarization and for vertical polarization at 9225 mhz. Measurements were performed at the Chesapeake Bay Division at NRL as the ships proceeded in a circular orbit. The ships used for the measurements were the DD 764, DEG 6, DDG 19, LPD 1, DE 1027, DLG 26, and AFS 5. In addition, measurements were made on the DLG and AFS in C band at 5500 MHz for both horizontal and vertical polarizations. Cross-section values were plotted as a function of ship aspect in the form of polar profiles. The profiles plotted were the 20, 50, and 80 percentile values of the RCS distribution function, which were determined for 2-degree azimuth increments.
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.
