für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The demand of digital information compression is increasing dramatically because of the dominance of multimedia technology and the bandwidth limitations of the physical media. The goal of image compression is to represent an image with as few number of bits as possible while preserving the quality required for the given application. JPEG and JPEG2000 are the international standard for still image compression with a fixed quantization matrix. This work presents the impact of varying the elements of this matrix by multiplying and dividing them with integers. The process results in the reduction of the number of bits used to represent the pixels in the compressed image. In this proposed scheme, the trade-off between compression ratio and quality of the image are optimized using Genetic Algorithm. A comparison of the various compression indices are made to validate the proposed method with the benchmark still image `LENA`. ····· 1036118783
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The far field pattern properties that are of most frequent concern to the array designer are the array sidelobe level, array gain and beamwidth. All these properties depend on the amplitude and phase excitation to the array of elements. The Adaptive antennas have the ability to automatically respond to an unknown interference environment by steering the main beam in the desired direction, by steering the nulls and reducing sidelobe level in the direction of interference. They consists of an array of antenna elements and an adaptive receiver- processor which adjusts its element and an adaptive receiver-processor which adjusts its element weights toward some optimization of output SNR. In this dissertation , the pattern of an array will be easily controlled by adjusting the weights by a simple adaptive technique based on the LMS algorithm and Numerical pattern synthesis algorithm that controls the sidelobes. The obtained weights from MATLAB will be utilized in Electro Magnetic Simulation Software IE3D and the results of both softwares will be compared. This dissertation is introduced in current book. It is well validated by publications from international journals. ····· 1036118782
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray In recent years, Digital Signal Processing (DSP) has expanded beyond filtering, frequency analysis, and signal generation. More and more markets are opening up to DSP applications, where in the past, real-time signal processing was not feasible or was too expensive. Real -time signal processing using general-purpose DSP processors provides an effective way to design and implement DSP algorithms for real-world applications. However, this is very challenging work in today s engineering fields. With DSP penetrating into many practical applications, the demand for high performance digital signal processors has expanded rapidly in recent years. Many industrial companies are currently engaged in real-time DSP research and development. Therefore, it becomes increasingly important for today s students, practicing engineers, and development researchers to master not only the theory of DSP, but also the skill of real time DSP system design and implementation techniques. This book is intended to provide both an understanding of the basic principles of DSP, and how these fundamental principles are applied in the building of sophisticated systems using current technologies. ····· 1036118756
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Digital PID controller is one of the most powerful and efficient way of controlling used in industrial and robotic applications.In this book i have presented comparison of two diverse realizations of FPGA based digital PID controller. One realization is multiplier based and other one is multiplier less, which is implemented through Distributed Arithmetic Look Up Table(DALUT). Distributed arithmetic is an efficient technique that have first been used for DSP filters since 1974 as presented by Peled and B.Liu to compute inner products using Look Up Tables. It is quite some time that DA based approach is also used in controllers, in this book advantages of DA approach have been lightened.DALUT based PID controller is more efficient as it converts multiplication to bit selection, which speeds up the process, also it utilizes less power and hardware resources. Both realizations are simulated in Matlab/Simulink environment as it is similar to soft wares used in industries. Xilinx SysGen is used to translate both the realizations to bit stream and then downloaded to the target FPGA. Also Xilinx provides the necessary comparison showing DALUT approach much better. ····· 1036118753
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Volumetric miniaturization, compactness, light weight, low cost, low loss, improved efficiency, multiband EM responses are basic design-application issues for innovative technique used for microstrip patch antennas(MSA). Current trend in modern researches is to use double negative metamaterial as substrate to meet the stringent requirements. MSAs inherently have narrow bandwidth. The Size reduction and BW enhancement are usually majorly demanded considerations for practical applications. Future mobile communication systems require smaller antenna to meet the miniaturization requirements. Significant progress in compact MSAs design with broadband, multi-frequency, multi-polarized, multi-band, circularly polarized and gain-enhanced operations to achieve miniaturization, compact and broadband operations are reported.Various broadband MSA designs for dual/ tri_frequency/band circularly polarized operations are produced. This book studies the principles, theories, categories, depth of researches, design-applications-fabrication issues and analysis of metamaterials based MSAs.Designing microwave regime MSA using unit cell is discussed for aspirants alongwith exhaustive reference list. ····· 1036118701
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray As the transistors became smaller in size and the systems became faster, issues like power consumption, signal integrity, soft error tolerance, and testing became serious challenges. There is an increasing demand to put CAD tools in the design flow to address these issues at every step of the design process. First part of this research investigates circuit level techniques to reduce power consumption in digital systems. In second part, improving soft error tolerance of digital systems is considered as a trade off problem between power and reliability and a power aware dynamic soft error tolerance control strategy is developed. The objective of this research is to provide CAD tools and circuit design techniques to optimize power consumption and to increase soft error tolerance of digital circuits. Multiple supply and threshold voltages are used to reduce power consumption. Variable supply and threshold voltages are used together with variable capacitances to develop a dynamic soft error tolerance control scheme. ····· 1036118685
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Processing & Characterization provides information on most implemented lead-free solder processing, reaction mechanism and characterization techniques involved. This book also includes a newly invented composite lead-free solder processing and characterization techniques. The resulted presented in this book were part of the experimental works at Universiti Malaysia Perlis (UniMAP) and National University of Malaysia (UKM). The chapters are organized around the following subject areas: solder developments, fundamental issues, mechanical and electrical properties, the factors affecting the reliability of lead-free solders and the processing techniques of new lead-free solder composite. It is not intended to be an exhaustive review of the literature but to be a practical reference guide for selected, key subject areas. The topics are in sufficient detail to be informative and a good practical guide to address issues of concern in lead-free solder areas. It is hope that this book provides wider awareness of the current status of lead-free electronic solders. ····· 1036118629
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Phone Radiation and Health concerns have been raised, particularly following the huge boost-up in the use of wireless mobile telephony all through the world. Mobile phones uses electromagnetic radiation in the microwave range and some people consider this might be damaging to human health. These concerns have induced a hefty body of research. In this paper, we have developed hardware to measure the radiation of mobile phones. We have done comparative study of all models of handsets from various companies. ····· 1036118570
für 61.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The available catalogue of active-RC circuits has evolved by accumulation of knowledge derived largely by trial-and-error. In the process of developing analog tools for circuit design automation, it is important to follow systematic methodologies to obtain novel circuits. This book presents the research work of the authors toward a generalized symbolic framework for synthesis and modeling of analog active circuits using admittance matrix representations. The proposed generalized symbolic framework allows the description of all kinds of active building-blocks along with passive elements within a single nodal admittance matrix (NAM) based on the nodes of the circuit. The framework is functional at two main levels, i) active device level: using a systematic methodology that allows the derivation of ideal NAM representations based on pathological elements for all classes of active building-blocks and ii) circuit level: active-RC circuits targeting various applications can be synthesized systematically by applying admittance matrix expansion steps on the NAM using specific matrix operations, with the aid of the matrix elements representing active devices. ····· 1036118558
für 84.51€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray In this book, bandpass filters, and bandstop filters, which demonstrate the compact size, good transmission coefficients and the minimum input reflection coefficients. The detailed fabrication process of Integrated Passive Device (IPD) Filters is also presented in the related section. Overall, combing the superior schematic technique and fabrication process, as well as concentrating the electromagnetic coupling and the designed structures can be significantly reduced in size. ····· 1036118467
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray To investigate an electromagnetic transient (emt) phenomenon within a power system, detailed representation of the overall system is neither practical due to the required computer resources and computational time, nor necessary since the emt phenomena, due to their inherent high-frequency nature, are experienced only within a limited region of the system. Therefore, only a limited part of the system, which is significantly affected and has the primary impact on the phenomenon under consideration, is modeled in details. The remaining parts of the system whose components have secondary impact on the phenomenon are replaced by frequency-dependent reduced-order equivalent models that reproduce their frequency response in the desired frequency range. This work presents an FPGA implementation for external network equivalents. Recent development and ongoing advances in microelectronics promise the Field Programmable Gate Array (FPGA) as a new but well established technology to realize real-time simulators for large, interconnected power systems. FPGA chips can provide the hardware base to carry out series, parallel and/or hybrid processing to solve the system equations. ····· 1036118378
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray In this project, Verilog HDL is used for the implementation due to its compatibility with pure digital hardware like FPGA`s. The Digital PLL is simulated and verified on FPGA to experience its advantages. The circuit comprises of a phase detector, loop filter, Numerically Controlled Oscillator (NCO), and two clock dividers. The circuit was stabilized to produce the frequency in the audio frequency range of 9.7 KHz. This agreed with the classical phase-locked loop model for the system. The stable long-term frequency clock was verified on the FPGA to generate the required locking frequency. The DC logic synthesis and a new synopsis low power flow was experimented for back annotation and to obtain the maximum possible operating frequency and area, timing and power estimation. ····· 1036118332
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The advent of consumer digital media products has vastly increased the concerns of copyright-dependent organizations within the music and movie industries. The increase usage of personal computers as household appliances has made it convenient for consumers to convert media originally in a physical/analog form into a digital form. This combined with the Internet and popular file sharing tools, has made unauthorized distribution of copies of copyrighted digital media much easier. The Digital Rights Management (DRM) field was thus spawned to prevent unauthorized access to digital content. The DRM solutions exist as either proprietary products owned by companies or as open standards. Most of the implemented DRM solutions suffer mainly from interoperability issue. This could kill the competition in the market through locking the users to certain products only. In this book, a new DRM system is proposed which overcomes the interoperability issue which exists in today s DRM products. This new DRM system is called Digital Rights Unit System (DRUS). ····· 1036118309
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray It is expected that neural network can make the computer intelligent. The cognitive tasks easily done by the animals can be possible by the neural network computing. Neural network is a different kind of computing where learning and adaptation are possible in the computer program. There are different appoaches for intelligence and neural network is one such method. Intelligence can be in many ways. It may be computational, decision making, classification etc. The learing and knowledge storing capabilities are the superior qualities of the neural network algorithms. Neural networks find application in almost all the field of enginnering. The prominent applications of neural networks are fault classification, system modelling and identification, prediction and forecasting, speech recognition, image recognition etc. ····· 1036118258
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Wireless Sensor Networks has come into wide use owing to the rapid achievements in MEMS technologies, wireless communications and digital electronics. They have a wide range of applications including environmental monitoring, security surveillance, military applications and others. Energy considerations as well as data delivery are among the most important design issues of such networks. This book proposes novel and efficient techniques to maximize the network`s lifetime while keeping complete network coverage. The techniques divide the network lifetime into rounds. Lifetime maximization depends on choosing a Network Master (NM) at the beginning of each round based on criteria that minimizes power consumption. The NM is rotated to distribute the energy load and each sensor has its turn to act as a NM for a certain number of cycles. The book also contributes in studying the effect of noisy environment on communications within the network and on data packets delivery. The book studies the tradeoff between increasing the average probability of receiving correct packets, through increasing the operating SNR, and increasing the network`s lifetime, through using lower SNR. ····· 1036118240
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Image processing and analysis constitute complex scientific problems. It is all too easy to overlook this complexity because of the enormous capabilities of human vision. The ease with which we can recognize objects even in complex scenes may lead to the erroneous conclusion that computer vision is an easy task. Therefore, successful scientific applications of digital image processing require an intensive interdisciplinary cooperation between the application research area and basic research in image processing itself. `DESTINY is the postponed throughput of our BEST EFFORTS...` ····· 1036118230
für 64.71€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Inside the two covers, transmittivity of photonic multiple quantum well-constructed using suitable semiconductor heterostructure composition is numerically analyzed by transfer matrix technique. From the result, bandwidth of the proposed photonic bandpass filter is computed under both polarized and normal incidence, and results are compared for identical structural parameters. Conventional photonic crystal is made by SiO2/air combination, and results are also calculated for it. Comparative study reveals the fact that our proposed heterostructure composition is far suitable for bandpass filter design when optical communication at 1550 nm is of prime concerned, and better tuning of bandwidth is also possible. Analysis for photonic crystal fiber is made with SiO2-Air composition for performance study through V-parameter, cladding index and effective mode profiles. Comparative analysis is carried out between these two material compositions which reveal that proposed heterostructure may provide better performance as filter and also efficient in guiding electromagnetic wave. Results will paly critical role in designing optical bandpass filter in future photonic integrated circuit. ····· 1036118193
für 49.41€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The focus of this work is the design and performance evaluation of Network on Chip (NoC) based multi-core hardware accelerators for computational biology. Sequence analysis and phylogenetic reconstruction are the two problems in this domain which have been addressed here. An effective approach to speed up such operations is to integrate a very high number of processing elements in a single chip so that the massive scales of fine-grain parallelism inherent in this application can be exploited efficiently. Network-on-Chip (NoC) is a very efficient method to achieve such large scale integration. Specifically, we (i) propose optimized NoC architectures for different sequence alignment algorithms that were originally designed for distributed memory parallel computers, (ii) a custom NoC architecture for solving the breakpoint phylogeny problem (iii) provide a thorough comparative evaluation of their respective performance and energy dissipation. ····· 1036118167
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Low leakage power switch is proposed to allow saving in power dissipation of the Network on Chip (NoC). Two power reduction techniques are exploited to design the proposed switch. The proposed NoC switch employs power supply gating to reduce the power dissipation. Adaptive virtual channel (AVC) is proposed as a novel technique to reduce power dissipation of the NoC switch. AVC technique is proposed as an efficient technique to reduce the active area using hierarchical multiplexing tree. Moreover, power gating reduces the average leakage power consumption of proposed switch. The proposed techniques reduce the leakage and dynamic power dissipation of the switch. ····· 1036118125
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Energy is the scarcest resource of sensor nodes and it determines the lifetime of wireless sensor networks. The main challenge is to minimize the energy required for wireless communication by developing application independent routing algorithm for reliable and efficient data delivery.Existing protocols either leads to long distance transmission or increase in the wastage of resources. The proposed scheme is to revolutionize the contemporary technical arena based on the hybrid routing. The hybrid routing is derived from fundamental radio energy model considering various parameters such as number of hops, threshold energy level, distance between number of hops and Packet Reception Rate (PRR). The threshold energy level is utilized to analyze the reliable link. The proposed scheme is more efficient than existing methods since it reduces average energy consumption for multihop communication even in the presence of high node density, high throughput, improves system life time and reduces the average latency leads to higher Packet Deliver Ratio(PDR). ····· 1036118039
für 80.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Prednaznachena dlya nauchnykh i inzhenerno-tekhnicheskikh rabotnikov, zanimayushchikhsya elektromagnitnoy bezopasnost`yu tekhnicheskikh sredstv, dlya aspirantov i nauchnykh rabotnikov, spetsializiruyushchikhsya v oblasti elektromagnitnoy sovmestimosti tekhnicheskikh sredstv, a takzhe dlya studentov elektrotekhnicheskikh uchebnykh zavedeniy, zanimayushchikhsya izucheniem elektronnogo oborudovaniya i liniy svyazi v elektroenergeticheskikh sistemakh i stalkivayushchikhsya s izlozhennymi v knige problemami. Rassmotrennye voprosy polezny i dlya meditsinskikh spetsialistov, stalkivayushchikhsya s problemami vozdeystviya elektromagnitnogo polya na obsluzhivayushchiy personal. ····· 103615117
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Monografiya yavlyaetsya pervym i poka edinstvennym na russkom yazyke sistematicheskim izlozheniem odnogo iz naibolee vostrebovannykh napravleniy strukturnogo testirovaniya v sovremennoy elektronike tekhnologiy granichnogo skanirovaniya (JTAG) i testoprigodnogo proektirovaniya (DFT), a takzhe vnutriskhemnogo testirovaniya (ICT), i v ravnoy stepeni mozhet sluzhit` kak uchebnikom dlya studentov i prepodavateley inzhenernykh, elektronnykh i komp`yuternykh spetsial`nostey universitetov i kolledzhey s prepodavaniem sootvetstvuyushchikh kursov, tak i spravochnikom dlya inzhenerov i tekhnikov, rabotayushchikh v promyshlennosti vysokikh tekhnologiy. Kniga okhvatyvaet vvedenie v standarty tsifrovogo IEEE (1149.1) i analogovogo (1149.4) granichnogo skanirovaniya, rasshirenie etogo standarta na differentsial`nye LVDS-tsepi (1149.6), novyy dvukhkontaktnyy JTAG standart 1149.7, vnutriskhemnoe konfigurirovanie PLM i FPGA, struktury SnK i noveyshiy standart testoprigodnogo proektirovaniya mikroskhem R1687. V knige sdelan obzor naibolee rasprostranennykh programmno-apparatnykh sredstv podderzhki tekhnologii JTAG (ProVision, onTAP, ScanExpress, ScanWorks, XJTAG) i privedeno mnozhestvo primerov, a takzhe vvedenie vo vnutriskhemnoe testirovanie ICT. ····· 103615090
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