Description : This lecture covers the fundamentals of spread spectrum modulation, which can be defined as any modulation technique that requires a transmission bandwidth much greater than the modulating signal bandwidth, independently of the bandwidth of the modulating signal. After reviewing basic digital modulation techniques, the principal forms of spread spectrum modulation are described. One of the most important components of a spread spectrum system is the spreading code, and several types and their characteristics are described. The most essential operation required at the receiver in a spread spectrum system is the code synchronization, which is usually broken down into the operations of acquisition and tracking. Means for performing these operations are discussed next. Finally, the performance of spread spectrum systems is of fundamental interest and the effect of jamming is considered, both without and with the use of forward error correction coding. The presentation ends with consideration of spread spectrum systems in the presence of other users.
Description : TEACCH (Treatment and Education of Autistic and related Communication-handicapped Children) has grown over the past three decades from a small clinic for children to an internationally recognized treatment and support modality for individuals of all ages with autism spectrum disorders. In The TEACCH Approach to Autism Spectrum Disorders, the programâs founders and their colleagues explain its methods and philosophy based on an understanding and respect for "the culture of autism."The TEACCH program focuses on persons with autism and the development of instruction and supports based on each individualâs skills, interests, and needs. It draws from the research literature in psychology and neuropsychology to create activities and environments that are organized to emphasize meaningfulnessâan approach that has proved crucial to an autistic individualâs ability to learn, comprehend, and apply learning across situations.The TEACCH Approach to Autism Spectrum Disorders explains how:nbsp;- TEACCH targets critical areas in executive functioning, engagement, communication, and social skills.nbsp;- Strategies can be tailored to an individualâs unique developmental and functional level.nbsp;- Parents become involved in all phases of intervention as collaborators, cotherapists, and advocates.nbsp;- The program can be introduced and adapted for individuals of all ages, from preschool children to adults.nbsp;- Professionals can be trained in the program and its methods.This progressive program offers individuals with autism, their families, teachers, and therapists both optimism and useful strategies, without minimizing the condition or its effects. All clinicians working with people with autism will find The TEACCH Approach to Autistic Spectrum Disorders a valuable resource.
Description : Spectrum analysis can be considered as a topic in statistics as well as a topic in digital signal processing (DSP). This book takes a middle course by emphasizing the time series models and their impact on spectrum analysis. The text begins with elements of probability theory and goes on to introduce the theory of stationary stochastic processes. The depth of coverage is extensive. Many topics of concern to spectral characterization of Gaussian and non-Gaussian time series, scalar and vector time series are covered. A section is devoted to the emerging areas of non-stationary and cyclostationary time series. The book is organized more as a textbook than a reference book. Each chapter includes many examples to illustrate the concepts described. Several exercises are included at the end of each chapter. The level is appropriate for graduate and research students.
Description : Spread spectrum and CDMA are cutting-edge technologies widely used in operational radar, navigation and telecommunication systems and play a pivotal role in the development of the forthcoming generations of systems and networks. This comprehensive resource presents the spread spectrum concept as a product of the advancements in wireless IT, shows how and when the classical problems of signal transmission/processing stimulate the application of spread spectrum, and clarifies the advantages of spread spectrum philosophy. Detailed coverage is provided of the tools and instruments for designing spread spectrum and CDMA signals answering why a designer will prefer one solution over another. The approach adopted is wide-ranging, covering issues that apply to both data transmission and data collection systems such as telecommunications, radar, and navigation. Presents a theory-based analysis complemented by practical examples and real world case studies resulting in a self-sufficient treatment of the subject Contains detailed discussions of new trends in spread spectrum technology such as multi-user reception, multicarrier modulation, OFDM, MIMO and space-time coding Provides advice on designing discrete spread spectrum signals and signal sets for time-frequency measuring, synchronization and multi-user communications Features numerous Matlab-based problems and other exercises to encourage the reader to initiate independent investigations and simulations This valuable text provides timely guidance on the current status and future potential of spread spectrum and CDMA and is an invaluable resource for senior undergraduates and postgraduate students, lecturers and practising engineers and researchers involved in the deployment and development of spread spectrum and CDMA technology. Supported by a Companion website on which instructors and lecturers can find a solutions manual for the problems and Matlab programming, electronic versions of some of the figures and other useful resources such as a list of abbreviations.
Description : The focus of Spectrum is the range of contemporary ideas that runs from conservative to liberal to radical conceptions of state and society, rarely considered in the same optic. It looks at the theories of major minds of the twentieth-century Right, including Carl Schmitt, Leo Strauss and Friedrich von Hayek; liberal philosophers such as John Rawls, Jurgen Habermas and Norberto Bobbio; and significant figures in the culture of the Left: the historians Edward Thompson, Robert Brenner and Eric Hobsbawm; the classicist Sebastiano Timpanaro; the sociologist Goran Therborn; the novelist Gabriel Garcia Marquez. The book concludes with some comparative observations on the two leading intellectual periodicals of the UK and USA, the London Review of Books and New York Review of Books; and a piece of family history.
Description : This accessible yet comprehensive primer explores the breadth of viewpoints on major issues in evangelical theology by examining positions taken by evangelicals on seventeen seminal issues. The second edition retains the helpful features of the first edition and adds an appendix that addresses thirteen peripheral issues in contemporary evangelicalism. Praise for the first edition "The authors do what no book on the market does: In one volume they faithfully present divergent views on the crucial issues that divide evangelicals, and they do so in an unbiased, succinct, and lively manner. This book is perfect as a supplemental text in an introductory theology course or as a manual for church study groups. It will help everyone arrive at his or her own conclusions within the parameters of the evangelical tradition."--Dennis Okholm, Azusa Pacific University "Across the Spectrum succeeds with distinction in at least two respects. First, it represents a very useful tool for those who wish to begin grappling with different approaches to difficult theological problems. The book will be most helpful to beginning students in evangelical theology, the target audience. Second, the work presents various perspectives in fair and unbiased tones. . . . If used with care, it will repeatedly reward the reader with its fair and even treatment of different theological views."--Nathan D. Holsteen, Bibliotheca Sacra "I've been waiting for this book for some time. Due to its brief, nontechnical format, it can be used in a variety of ways in undergraduate theology courses. Although a concise volume, it succinctly outlines multiple arguments, both pro and con, for (incredibly!) over two dozen issues in disputed, largely non-fundamental areas of doctrine. The professor can present positions in favor of particular views or leave the issues open. It's settled--I'm requiring it!"--Gary R. Habermas, Liberty University "A collective sigh of relief will arise from the evangelical student body when it discovers this book! It helpfully and critically surveys the many legitimate evangelical theological options and convincingly demonstrates that there is no single authentically evangelical viewpoint on a wide range of controversial issues. It constitutes a small library between two covers."--Roger E. Olson, George W. Truett Theological Seminary, Baylor University
Description : "Written for vibration analysts, predictive maintenance specialists, field mechanics, and a wide variety of engineers, Vibration Spectrum Analysis assumes no prior knowledge of advanced mathematics or mechanical engineering. It carefully guides the reader through sophisticated analysis techniques in a logical, easy-to-understand manner."--BOOK JACKET.
Description : New developments in the response spectrum method have led to calculations in seismic stresses that are more accurate, and usually lower, than those obtained by conventional methods. This new textbook examines the wealth of information on the response spectrum method generated by the latest research and presents the background theory in simplified form. Applications of these methods is essential in the seismic design of critical structures, such as nuclear power plants and petroleum facilities. In new construction, the reduced seismic stresses will result in efficient and economic design. For facilities already built, these more accurate methods can be used where the facility is being reassessed for higher loads and in the calculation of margins. Written by an acknowledged expert in this and related fields, this volume is ideal as a graduate text for courses in structural and earthquake engineering. It is also an excellent reference for civil, structural, mechanical, and earthquake engineers.
Description : This wide-ranging, well-illustrated book offers all kinds of tried and tested strategies to help young people with autistic spectrum disorders develop and learn. Designed to be a really practical guide for nursery nurses, teachers and support staff in mainstream schools, as well as parents, the guide focuses on both work and play. 'Every parent, teacher or teaching assistant who supports a child with autistic tendencies should have a copy of this book.' Fiona Jukes, Learning Support Assistant This wide-ranging, well-illustrated book offers all kinds of tried and tested strategies to help young people with autistic spectrum disorders develop and learn. Designed to be a really practical guide for nursery nurses, teachers and support staff in mainstream schools, as well as parents, the guide focuses on both work and play and includes helpful guidance on numeracy and literacy.