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Code and Frequency Synchronization for DS-CDMA Systems. Rectangular and Bandlimited Waveforms

Автор:   Khaled A.
мягкая обложка
148 страниц
2008 год
Издательство:   Книга по Требованию
2413 руб
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Описание:A subspace code-timing estimator for CDMA systems that utilize bandlimited chip waveforms is also presented. The proposed method can be implemented both blindly and in a training-assisted fashion. The performance of the proposed study is examined analytically, where expressions for the variance of propagation delay and frequency offset estimation errors are derived. The proposed estimator relies on converting the received signal to the frequency domain, then, the code-timing estimates are obtained by exploiting the unique structure of the spectra of the spreading waveform. Joint estimation of code timing and carrier frequency offset for (DS) direct sequence CDMA systems is investigated. The goal is to provide an algebraic solution to the joint estimation problem, in a near-far time-varying frequency-selective fading channel. First, the multiuser estimation is decoupled into a series of single-user estimation problems; then, analytical tools of polynomial matrices are invoked for joint carrier and code timing estimation of the desired user.

Orthomol Immun Junior Сила иммунитета на страже Вашего ребенка Orthomol Immun Junior Сила иммунитета на страже Вашего ребенка

2990 руб
Бесплатная доставка

Practical Common Lisp

In that case, you must take care to eventually close the stream yourself, or you'll leak file descriptors and may eventually end up unable to open any more files. Filenames So far you've used strings to represent filenames. However, using strings as filenames ties your code to a particular operating system and file system. Likewise, if you programmatically construct names according to the rules of a particular naming scheme (separating directories with /, say), you also tie your code to a particular file system. To avoid this kind of nonportability, Common Lisp provides another representation of filenames: pathname objects. Pathnames represent filenames in a structured way that makes them easy to manipulate without tying them to a particular filename syntax. And the burden of translating back and forth between strings in the local syntax—called namestrings—and pathnames is placed on the Lisp implementation. Unfortunately, as with many abstractions designed to hide the details of fundamentally different underlying systems, the pathname abstraction introduces its own complications ...»

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2858 руб
Раздел: Инженерные, научно-технические

An Analytical Framework for Approximating the Downlink Transmit Power in Multi-Rate DS-CDMA Systems Framework for Call Admission Control Analysis in Multi-Rate DS-CDMA.
This book presents a framework for analytically characterizing the downlink transmit power for DS- CDMA multirate systems.
          2005 руб             2009 год          96 стр.          мягкая обложка

Design and Analysis of Wireless CDMA Systems. Using Theory of Random Matrices
CDMA based cellular systems have been widely deployed and CDMA is selected as the air interface of third-generation (3G) cellular system (W-CDMA, cdma2000, TD-SCDMA).
          2744 руб             2009 год          172 стр.          мягкая обложка

Study of DS-CDMA Rake Receiver in Realistic Mobile Radio Environment. Case Study
Problems with transmission and reception of data in AWGN channel are also discussed. Fourth Chapter: Advantages of CDMA over other multiple access techniques like FDMA and TDMA is studied and quantitative method of measurement of performance of these systems is presented in this chapter.
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Algorithm Development and Applications Active Vibration Control Systems in the Frequency and Sub-Band Domain.
Specifically, this book presents a new sub-band adaptive filter architecture without a signal path delay and derives the associated adaptive algorithm.
          2382 руб             2009 год          128 стр.          мягкая обложка

A Genetic Algorithm Approach to Bus Transfers Synchronization. Minimizing Transfer Times in a Public Transit System
In addition, software developers can benefit from the code provided in the appendixes. Master’s and Ph. D. students may find this book resourceful for a master’s thesis or dissertation.
          2766 руб             2009 год          168 стр.          мягкая обложка

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          2005 руб             2008 год          108 стр.          мягкая обложка

TRANSCUTANOUS POWER LINK DESIGN FOR RETINAL PROSTHESIS. Design of the radio-frequency power links to be used in prosthetic body implanted systems and closed loop class-E driver design for low-Q networks
Main specifications used in the design procedure are dimensions of the coils, distance between them, frequency of operation, load power, load voltage and the maximum available input DC voltage.
          2005 руб             2009 год          72 стр.          мягкая обложка

Coded Modulation for Terrestrial Free Space Optical Systems. Simulative comparison of Coded Modulation techniques over a comprehensive channel model for Terrestrial Free Space Optical links
The research within this thesis revolves around the modem design techniques for Terrestrial Free Space Optical (FSO) systems and the channel modeling of these systems.
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Analysis and Design of Protocols and Cryptographic Primitives Lightweight Cryptography in Radio Frequency Identification Systems.
Specifically, we propose a lightweight hash function (Tav-128) and a lightweight Pseudo- Random Number Generator (LAMED and LAMED-EPC).
          3231 руб             2010 год          260 стр.          мягкая обложка

THE APPLICATION OF REAL NUMBERS CODE FOR GENETIC ALGORITHMS. Applied Into Design Membership Function in Fuzzy Logic Control System for Plastic Extruder
This book investigates the use of Genetic Algorithms (GA) to design and implement of Fuzzy Logic Controllers (FLC).
          2277 руб             2010 год          148 стр.          мягкая обложка

"On Some Chaotic Complex Nonlinear Systems". Subtitle: Chaotic, Chaos, Synchronization, Complex
The aim of this thesis is to introduce and study ? some chaotic complex nonlinear dynamical systems, for example, complex ?
          2277 руб             2010 год          136 стр.          мягкая обложка

Толковый словарь сетевых терминов и аббревиатур (пер. с англ., ред. Гордиенко Ю.Г.) Cisco Systems ISBN 1-5872-0045-7 5-8459-0245-2
Он станет практичным и удобным справочником для всех специалистов в области сетевых технологий, который будет незаменим как при чтении вступительных обзоров общего характера, так и при изучении специализированных технических руководств.
          337 руб             2002 год          368 стр.          Мягкая обложка

3 Ds Max 7. Лучшие плагины (+ CD-ROM)
Работа в знаменитом пакете разработки трехмерной графики от компании Discreet в подавляющем большинстве случаев связана с использованием дополнительных подключаемых модулей от сторонних разработчиков.
          346 руб             2005 год          528 стр.          мягкая обложка

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<p>Книга представляет собой обширный справочник, содержащий описание практически всех используемых в настоящее время сетевых протоколов и технологий.
          1247 руб             2005 год

Civil Code of the Russian Federation. Part 4
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          126 руб             2008 год          96 стр.          мягкая обложка

B-CDMA: Синтез и анализ систем фиксированной радиосвязи
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Colour, typography, pictograms and icons are all elements that can be varied and exploited to encapsulate as much information as possible and fit the requirements of the brief:   the signage for a hospital, an airport and a conference centre may have little in common, and solutions must always be tailored to fit the location. The book also showcases great examples of information design and signage design worldwide, ranging from museums and schools to transport systems, with an emphasis on the most original approaches. This is not only an indispensable handbook for communications designers but a must for architects, interior designers and graphic artists who are keen to get a better insight into this fascinating but often overlooked aspect of modern design. The author begins by describing the basic rules of signage design – signs must be visible but not distracting, informative but not unwieldy, concise but not confusing. A signage system is much more than just a set of signposts and symbols… good signage design creates an identity and adds flair to any environment. Signage Systems and Information Design explores signage as information design where graphics and architecture come together.
          1951 руб             2007 год          336 стр.          твердый переплет

Russian Civil Code. Parts 1–3: Text and Analysis (на английском языке)
Professor Christopher Osakwe, who established his distinguished career as a professor of comparative law at Tulane University School of Law, is a seasoned practitioner and author of numerous works on comparative law.
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The Secret Code: The Mysterious Formula That Rules Art, Nature, and Science
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          2 руб             2008 год          204 стр.          твердый переплет + суперобложка

An Elementary Treatise On Frequency Curves (1922)
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Robert Ludlum's The Altman Code
As the mysterious ship draws closer to its end port, Smith is losing time in uncovering the truth about the vessel and its cargo-a truth that probes the secrets of the Chinese ruling party, the faction in Washington working to undermine the elected government, and the international cabal who is thrusting the world to the brink of war. . . Covert-One agent Jon Smith is sent to rendezvous in Taiwan with another agent who has acquired the ship' s true manifest. But before Smith can get the document, he is ambushed, the second agent is murdered, and the evidence is destroyed. Smith escapes with only his life and a verbal message-the president' s biological father is still alive, held prisoner by the Chinese for fifty years.
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Modeling Methodologies for Dynamic Reconfigurable Systems. How to model, validate and implement a Dynamic Reconfigurable System using Simulink
The proposed methodological flow is centered on the model-based design paradigm; it relies upon Simulink by The MathWorks as long as several tools developed by the DRESD team (www. dresd. org) and by the targeted FPGAs producers.
          1978 руб             2009 год          60 стр.          мягкая обложка

Simulation-Based Decision Making for Complex Systems. Applications in Disaster Response Planning and Management
We have used this novel simulation-optimization technique to study several disaster response problems.
          2744 руб             2009 год          200 стр.          мягкая обложка


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