Resultados de Pesquisa

INGLÊS

Mathematics Of Multidimensional Fourier Transform Algorithms

de Chao Lu, Myong An e Richard Tolimieri

97,34€ + 10% EM CARTÃO

portes grátis

 Develops algorithms for processing multi-dimensional digital signals - particularly, algorithms for multi-dimensional Fourier transforms in a form that is convenient for writing efficient code on a variety of vector and parallel computers.
INGLÊS

Algorithms For Discrete Fourier Transform And Convolution

de Chao Lu, Myoung An e Richard Tolimieri

95,40€ + 10% EM CARTÃO

DISPONIBILIDADE IMEDIATA

 This book is based on several courses taught during the last five years at the City College of the City University of New York and at Fudan University, Shanghai, China in the Summer, 1986. It was originally our intention to present to a mixed audience of electrical engineers, mathematicians and computer scientists at the graduate level, a collection of algorithms which would serve to represent the vast array of algorithms designed over the last twenty years for com puting the finite Fourier transform (FFT) and finite convolution. However, it was soon apparent that the scope of the course had to be greatly expanded. For researchers interested in the design of new algorithms, a deeper understanding of the basic mathematical con cepts underlying algorithm design was essential. At the same time, a large gap remained between the statement of an algorithm and the implementation of the algorithm. The main goal of this text is to describe tools which can serve both of these needs. In fact, it is our belief that certain mathematical ideas provide a natural lan guage and culture for understanding, unifying and implementing a wide range of digital signal processing (DSP) algorithms. This belief is reenforced by the complex and time-consumming effort required to write code for recently available parallel and vector machines. A significant part of this text is devoted to establishing rules and precedures which reduce and at times automate this task. In Chapter 1, a survey is given of basic algebra.
INGLÊS

Algorithms For Discrete Fourier Transform And Convolution

de Chao Lu, Myoung An e Richard Tolimieri

171,59€ + 10% EM CARTÃO

DISPONIBILIDADE IMEDIATA

 Provides a view of the developments in the field of fast digital signal processing algorithms. This book serves both as a textbook for graduate courses and as a reference book of algorithms for signal processing.
INGLÊS

Lectures On Discrete Time Filtering

de R.S. Bucy

59,61€ + 10% EM CARTÃO

DISPONIBILIDADE IMEDIATA

 The theory of linear discrete time filtering started with a paper by Kol mogorov in 1941. He addressed the problem for stationary random se quences and introduced the idea of the innovations process, which is a useful tool for the more general problems considered here. The reader may object and note that Gauss discovered least squares much earlier; however, I want to distinguish between the problem of parameter estimation, the Gauss problem, and that of Kolmogorov estimation of a process. This sep aration is of more than academic interest as the least squares problem leads to the normal equations, which are numerically ill conditioned, while the process estimation problem in the linear case with appropriate assumptions leads to uniformly asymptotically stable equations for the estimator and the gain. The conditions relate to controlability and observability and will be detailed in this volume. In the present volume, we present a series of lectures on linear and nonlinear sequential filtering theory. The theory is due to Kalman for the linear colored observation noise problem; in the case of white observation noise it is the analog of the continuous-time Kalman-Bucy theory. The discrete time filtering theory requires only modest mathematical tools in counterpoint to the continuous time theory and is aimed at a senior-level undergraduate course. The present book, organized by lectures, is actually based on a course that meets once a week for three hours, with each meeting constituting a lecture.
INGLÊS

Multiplicative Complexity, Convolution, And The Dft

de Michael T. Heideman

59,61€ + 10% EM CARTÃO

DISPONIBILIDADE IMEDIATA

 This book is intended to be a comprehensive reference to multiplicative com- plexity theory as applied to digital signal processing computations. Although a few algorithms are included to illustrate the theory, I concentrated more on the develop- ment of the theory itself.
INGLÊS

Synthetic Aperture Radar

de J. Patrick Fitch

59,61€ + 10% EM CARTÃO

DISPONIBILIDADE IMEDIATA

 Of special interest are the surface mapping radars, such as the Seasat and the shuttle imaging radars, which utilize a technique known as synthetic aperture radar (SAR) to create high resolution images (pic- tures).
INGLÊS

Array Signal Processing

de S. Unnikrishna Pillai

118,59€ + 10% EM CARTÃO

DISPONIBILIDADE IMEDIATA

 This book is intended as an introduction to array signal process ing, where the principal objectives are to make use of the available multiple sensor information in an efficient manner to detect and possi bly estimate the signals and their parameters present in the scene. The advantages of using an array in place of a single receiver have extended its applicability into many fields including radar, sonar, com munications, astronomy, seismology and ultrasonics. The primary emphasis here is to focus on the detection problem and the estimation problem from a signal processing viewpoint. Most of the contents are derived from readily available sources in the literature, although a cer tain amount of original material has been included. This book can be used both as a graduate textbook and as a reference book for engineers and researchers. The material presented here can be readily understood by readers having a back ground in basic probability theory and stochastic processes. A prelim inary course in detection and estimation theory, though not essential, may make the reading easy. In fact this book can be used in a one semester course following probability theory and stochastic processes.
INGLÊS

Mathematics Of Multidimensional Fourier Transform Algorithms

de Chao Lu, Myoung An e Richard Tolimieri

95,40€ + 10% EM CARTÃO

DISPONIBILIDADE IMEDIATA

 The main emphasis of this book is the development of algorithms for processing multi-dimensional digital signals, and particularly algorithms for multi-dimensional Fourier transforms, in a form that is convenient for writing highly efficient code on a variety of vector and parallel computers.
INGLÊS

Maximum-Likelihood Deconvolution - A Journey Into Model-Based Signal Processing

de Jerry M. Mendel

59,61€ + 10% EM CARTÃO

DISPONIBILIDADE IMEDIATA

 Convolution is the most important operation that describes the behavior of a linear time-invariant dynamical system. Deconvolution is the unraveling of convolution. It is the inverse problem of generating the system''s input from knowledge about the system''s output and dynamics. Deconvolution requires a careful balancing of bandwidth and signal-to-noise ratio effects. Maximum-likelihood deconvolution (MLD) is a design procedure that handles both effects. It draws upon ideas from Maximum Likelihood, when unknown parameters are random. It leads to linear and nonlinear signal processors that provide high-resolution estimates of a system''s input. All aspects of MLD are described, from first principles in this book. The purpose of this volume is to explain MLD as simply as possible. To do this, the entire theory of MLD is presented in terms of a convolutional signal generating model and some relatively simple ideas from optimization theory. Earlier approaches to MLD, which are couched in the language of state-variable models and estimation theory, are unnecessary to understand the essence of MLD. MLD is a model-based signal processing procedure, because it is based on a signal model, namely the convolutional model. The book focuses on three aspects of MLD: (1) specification of a probability model for the system''s measured output; (2) determination of an appropriate likelihood function; and (3) maximization of that likelihood function. Many practical algorithms are obtained. Computational aspects of MLD are described in great detail. Extensive simulations are provided, including real data applications.
INGLÊS

Electromagnetic Devices For Motion Control And Signal Processing

de Yuly M. Pulyer

118,59€ + 10% EM CARTÃO

DISPONIBILIDADE IMEDIATA

 This book is dedicated to electrical and mechanical engineers involved with the design of magnetic devices for motion con trol and other instrumentation that uses magnetic principles and technology. It can be of benefit to graduate and postgrad uate students to gain experience with electro-magnetic princi ples and also with different aspects of magnetic coupling mech anisms and magnetic circuitry analysis for the design of devices such as electrical servo motors, tachogenerators, encoders, gyro magnetic suspension systems, electro-magnetic strip lines, and other electro-magnetic instruments. The rapidly growing areas of production automation, robotics, precise micro-electronics, and pilot navigation place demands on motion control technology in terms of accuracy, reliability, cost effectiveness, and miniaturization. New ferromagnetic materials having quasi-linear and non-linear high-squareness characteris tics as well as high-energy permanent magnets, fine lithography, and high-t.emperature superconductivit.y (t.o be expected com mercially) motivate the implementation of new motion control components that exploit these new materials and technologies. This book presents classical miniature electrical machine de signs as well as several modifications in the geometry of mag netic couplings which lead to new motor and encoder design methodologies and other motion control devices such as new coil deposition patterns for incremental and absolute encoders, free spherical gyro suspension in a traveling magnetic field for navigation instrumentation, and magnetic strip lines in combi nation with resistive and capacitive media to generate a variety of low-noise LC filters and other signal processing devices.
INGLÊS

Algebraic Methods For Signal Processing And Communications Coding

de Richard E. Blahut

59,61€ + 10% EM CARTÃO

DISPONIBILIDADE IMEDIATA

 Algorithms for computation are a central part of both digital signal pro cessing and decoders for error-control codes and the central algorithms of the two subjects share many similarities. Each subject makes extensive use of the discrete Fourier transform, of convolutions, and of algorithms for the inversion of Toeplitz systems of equations. Digital signal processing is now an established subject in its own right; it no longer needs to be viewed as a digitized version of analog signal process ing. Algebraic structures are becoming more important to its development. Many of the techniques of digital signal processing are valid in any algebraic field, although in most cases at least part of the problem will naturally lie either in the real field or the complex field because that is where the data originate. In other cases the choice of field for computations may be up to the algorithm designer, who usually chooses the real field or the complex field because of familiarity with it or because it is suitable for the particular application. Still, it is appropriate to catalog the many algebraic fields in a way that is accessible to students of digital signal processing, in hopes of stimulating new applications to engineering tasks.
INGLÊS

Mathematics Of Multidimensional Fourier Transform Algorithms

de Chao Lu, Myoung An e Richard Tolimieri

59,61€ + 10% EM CARTÃO

DISPONIBILIDADE IMEDIATA

 Fourier transforms of large multidimensional data sets arise in many fields --ranging from seismology to medical imaging. The rapidly increasing power of computer chips, the increased availability of vector and array processors, and the increasing size of the data sets to be analyzed make it both possible and necessary to analyze the data more than one dimension at a time. The increased freedom provided by multidimensional processing, however, also places intesive demands on the communication aspects of the computation, making it difficult to write code that takes all the algorithmic possiblities into account and matches these to the target architecture. This book develops algorithms for multi-dimensional Fourier transforms that yield highly efficient code on a variety of vector and parallel computers. By emphasizing the unified basis for the many approaches to one-dimensional and multidimensional Fourier transforms, this book not only clarifies the fundamental similarities, but also shows how to exploit the differences in optimizing implementations. This book will be of 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. Topics covered include: tensor products and the fast Fourier transform; finite Abelian groups and their Fourier transforms; Cooley- Tukey and Good-Thomas algorithms; lines and planes; reduced transform algorithms; field algorithms; implementation on Risc and parallel
INGLÊS

Laying Of The Cable, Or The Ocean Telegraph; Being A Complete And Authentic Narrative Of The Attempt To Lay The Cable Across The Entrance To The Gulf Of St. Lawrence In 1855, And Of The Three Atlantic - With A Det

de John Mullaly

ESGOTADO OU NÃO DISPONÍVEL
INGLÊS

Oriental And Western Siberia; A Narrative Of Seven Years' Exploration And Adventures In Siberia, Mongolia, The Kirghis Steppes, Chinese Tartary, And A Part Of Central Asia. By Thomas Witlam Atkinson.

de Thomas Witlam Atkinson

ESGOTADO OU NÃO DISPONÍVEL

NÃO ENCONTROU O QUE PROCURA?

Faça consulta pelos temas do menu.

Consulte os critérios de pesquisa na ajuda .

E por fim, se necessário, utilize a opção procuramos por si .