Download or read book Comparison of Fast Fourier Transforms with Other Transforms in Signal Processing for Tactical Radar Target Identification written by Robert L. Herron (CAPT, USAF.) and published by . This book was released on 1977 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Comparison of Fast Fourier Transforms with Other Transforms in Signal Processing for Tactical Radar Target Identification written by and published by . This book was released on 1977 with total page 177 pages. Available in PDF, EPUB and Kindle. Book excerpt: The High Resolution Radar Branch of the Rome Air Development Center has developed a tactical target identification (TTI) pulsed-Doppler radar system which generates two-dimensional 'images' of aircraft. The signal processing technique utilizes the fast Fourier transform (FFT) to produce a slant-range versus cross-range display. If the TTI system is to be effectively employed in an aerial warfare environment then real-time processing is necessary. In an effort to speedup the signal processing several alternative transforms were studied as possible substitutes for the FFT. The Karhunen-Loeve, Cosine (Sine), Mellin, and Hankel transforms were investigated and found to be infeasible for use in TTI imaging. The Walsh (Hadamard) transform was studied in detail and tested in a simulation program and found that it could not be utilized in the TTI signal processing. Two methods of converting from the Walsh sequency domain to the Fourier frequency domain were studied. The first scheme, a recursive relationship between the arithmetic and logical autocorrelation functions as presented by Robinson was discovered to be incorrect. The second, a method of computing the Fourier coefficients from the Walsh coefficients of a function was demonstrated to be too time consuming to be implemented in TTI signal processing. Several floating-point FFT implementations were tested using the simulation program. Also, several fixed-point FFT algorithms were derived and tested. All of these were evaluated on the basis of speed and memory requirements and one fixed-point FFT algorithm was shown to be fast enough and accurate enough for implementation on the TTI Minicomputer. (Author).
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 728 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Spectral Techniques and Fault Detection written by Marg Karpovsky and published by Elsevier. This book was released on 2012-12-02 with total page 619 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spectral Techniques and Fault Detection focuses on the spectral techniques for the analysis, testing, and design of digital devices. This book discusses the error detection and correction in digital devices. Organized into 10 chapters, this book starts with an overview of the concepts and tools to evaluate the applicability of various spectral approaches and fault-detection techniques to the design. This text then describes the class of generalized Programmable Logic Array configurations called Encoded PLAs. Other chapters consider the two-sided Chrestenson Transform to the analysis of some pattern properties. This book describes as well a certain type of cellular arrays for highly parallel processing, namely, three-dimensional arrays. The final chapter deals with the system design methods that allow and encourage designers to incorporate the necessary distributed error correction throughout any digital system. This book is a valuable resource for graduate students and engineers working in the fields of logic design, spectral techniques, testing, and self-testing of digital devices.
Download or read book Masters Theses in the Pure and Applied Sciences written by W. H. Shafer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 319 pages. Available in PDF, EPUB and Kindle. Book excerpt: Masters Theses in the Pure and Applied Sciences was first conceived, published, and dis seminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS) * at Purdue University in 1957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dissemination phases of the ac tivity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all concerned if the printing and distribution of the volume were handled by an international publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Corporation of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 22 (thesis year 1977) a total of 10,658 theses titles from 28 Canadian and 227 United States universities. We are sure that this broader base for theses titles reported will greatly enhance the value of this important annual reference work. While Volume 22 reports theses submitted in 1977, on occasion, certain universities do report theses submitted in previous years but not reported at the time.
Download or read book Technology Security and National Power written by Stephen D. Bryen and published by Routledge. This book was released on 2017-07-05 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: In Technology Security and National Power, Stephen D. Bryen shows how the United States has squandered its technological leadership through unwise policies. Starting from biblical times, he shows how technology has either increased national power or led to military and political catastrophe. He goes on to show how the US has eroded its technological advantages, endangering its own security.The scope ofTechnology Security and National Power extends across 3,000 years of history, from an induced plague in Athens to chemical weapons at Ypres to an atomic bomb on Hiroshima to the nuclear balance of terror. It describes new weapons systems and stealth jets, cyber attacks on national infrastructure, the looting of America's Defense secrets, and much more. The core thesis is supported by unique insight and new documentation that reaches into today's conflicted world.More than a litany of recent failures and historical errors, this book is a wake-up call for political actors and government officials who seem unable to understand the threat. Technology Security and National Power proposes that the United States can again become a winner in today's globalized environment.
Download or read book Fast Fourier Transforms written by C. Sidney Burrus and published by Lulu.com. This book was released on 2012-11-30 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book uses an index map, a polynomial decomposition, an operator factorization, and a conversion to a filter to develop a very general and efficient description of fast algorithms to calculate the discrete Fourier transform (DFT). The work of Winograd is outlined, chapters by Selesnick, Pueschel, and Johnson are included, and computer programs are provided.
Download or read book Handbook of Real Time Fast Fourier Transforms written by Winthrop W. Smith and published by Wiley-IEEE Press. This book was released on 1995-05-22 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This useful, logical, unbiased, FFT compendium allows the user to quickly and accurately obtain practical information to implement a solution or simply acquire a general overview without spending months gathering this information elsewhere." —Jay Perry, Executive Vice President, Technology, Catalina Research, Inc. "This is a practical guide for understanding and using FFTs. Win’s (Winthrop Smith, author) years of experience using FFTs to solve real-world problems comes through on page after page. If you’re building an FFT processor, you’ll find this book indispensable." —Tony Agnello, President, Ariel Corp. FFTs are at the heart of ADSL, the new telecom standard (T1.413), which allows phones to transfer digital data 200 times faster and simultaneously transmit speech. Fast Fourier Transforms (FFTs) synthesize, recognize, enhance, compress, modify, or analyze signals in products such as Doppler weather radar, CT and MRI scans, AWACS radar, and satellite imaging radar. In this book, you will get the foundation and facts you need to implement FFT algorithms for many diverse applications. Key features you will put to immediate use include: Comparison matrices and performance measures for objective selection of weighting functions, algorithm building blocks, algorithms, algorithm mappings, arithmetic formats, and DSP chips Extensive algorithm examples with instructions for memory mapping and conversion to code An unbiased listing of the FFT features of 51 fixed-point DSP chips, including ASIC and multiprocessor chips, 13 floating-point DSP chips, and six dedicated FFT chips Test signals with instructions and examples on how to detect and isolate errors during: FFT algorithm/code development and debugging, and end-product operation Design examples for products that use frequency analysis, power spectrum estimation, linear filtering, and two-dimensional processing Questions and answers for selecting commercial-off-the-shelf DSP boards An all-in-one-source for implementing real-time FFT algorithms of any length, this book will be essential to engineers and other technical innovators who want to stay on the cutting edge of FFT technology.
Download or read book Fast Fourier Transforms written by James S. Walker and published by CRC Press. This book was released on 2017-11-22 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new edition of an indispensable text provides a clear treatment of Fourier Series, Fourier Transforms, and FFTs. The unique software, included with the book and newly updated for this edition, allows the reader to generate, firsthand, images of all aspects of Fourier analysis described in the text. Topics covered include :
Download or read book The Fast Fourier Transform and Its Applications written by E. Oran Brigham and published by Pearson. This book was released on 1988 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Fast Fourier Transform (FFT) is a mathematical method widely used in signal processing. This book focuses on the application of the FFT in a variety of areas: Biomedical engineering, mechanical analysis, analysis of stock market data, geophysical analysis, and the conventional radar communications field.
Download or read book Applications of Optical Fourier Transforms written by Henry Stark and published by . This book was released on 1982 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt: Theory and measurement of the optical fourier transform; Pattern recognition via complex spatial filtering; Particle identification and couting by fourier-optical pattern recognition; Signal processing using hybrid systems; Fourier optics and radar signal processing; Application of optical power spectra to photography image measurement; Fourier optics and SAW devices; Space-variant optical systems and processing; Fourier optics in nonlinear signal processing; Optical information processing and the human visual systems; Statistical pattern recognition using optical fourier transform features.
Download or read book The Fast Fourier Transform written by E. Oran Brigham and published by Prentice Hall. This book was released on 1974 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: The fourier transform; Fourier transform properties; Convolution and correlation; Fourier series and sampled waveforms; The discrete fourier transform; Discrete convolutiion and correlation; Applying the discrete fourier transform.
Download or read book Discrete and Continuous Fourier Transforms written by Eleanor Chu and published by CRC Press. This book was released on 2008-03-19 with total page 423 pages. Available in PDF, EPUB and Kindle. Book excerpt: Long employed in electrical engineering, the discrete Fourier transform (DFT) is now applied in a range of fields through the use of digital computers and fast Fourier transform (FFT) algorithms. But to correctly interpret DFT results, it is essential to understand the core and tools of Fourier analysis. Discrete and Continuous Fourier Transform
Download or read book The Fast Hartley Transform as an Alternative to the Fast Fourier Transform written by and published by . This book was released on 1988 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comparison is made between the Discrete Hartley Transform and Discrete Fourier Transform algorithms. the Fast Hartley Transform is examined as an alternative to the Fast Fourier Transform for signal processing in the Jindalee Over The Horizon Radar project. Keywords: Algorithms; Fast Fourier transforms; Signal processing; Over the horizon radar; Australia.
Download or read book Applications of Walsh and Related Functions with an Introduction to Sequency Theory written by K. G. Beauchamp and published by . This book was released on 1984 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mathematics of Multidimensional Fourier Transform Algorithms written by Richard Tolimieri and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 193 pages. Available in PDF, EPUB and Kindle. Book excerpt: Developing algorithms for multi-dimensional Fourier transforms, this book presents results that yield highly efficient code on a variety of vector and parallel computers. By emphasising the unified basis for the many approaches to both one-dimensional and multidimensional Fourier transforms, this book not only clarifies the fundamental similarities, but also shows how to exploit the differences in optimising implementations. It will thus be of great interest not only to applied mathematicians and computer scientists, but also to seismologists, high-energy physicists, crystallographers, and electrical engineers working on signal and image processing.
Download or read book Fourier Transforms in Radar and Signal Process written by and published by . This book was released on 2018-05 with total page 365 pages. Available in PDF, EPUB and Kindle. Book excerpt: The convergence of Fourier transform methods with high tech opens new opportunities for detection and handling of atoms and molecules using nanodevices, with potential for a large variety of scientific and technological applications. The applications of the Fourier transform include filtering, telecommunication, music processing, pitch modification, signal coding and signal synthesis feature extraction for pattern identification as in speech recognition, image processing, spectral analysis in astrophysics, radar signal processing. Fourier transforms are used broadly, and are of particular value in the analysis of single functions and combinations of functions found in radar and signal processing.This book 'Fourier Transforms in Radar & Signal Process' focuses on the Fourier transform applications in signal processing techniques as well as provide tools for practical applications to encourage further research and results in this area. The aim the book is to gain detailed knowledge with using the Fourier transform in radar and signal processing, both specific techniques and general principles, and learning to recognize when, why, and how it is used. It provides an applications-oriented analysis to signal processing primarily for electrical engineers, communication engineers, signal processing engineers, mathematicians and graduate students will also find it useful as a reference for their research activities.
