für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Switched capacitor circuits fall into the category of sampled data analog systems, which is in between the two main categories: analog and digital. They provide an efficient way to design MOS compatible analog circuits. Although filter design is the most common application of switched capacitor circuits, they are also used extensively in mixed analog-digital systems. Time multiplexing of switched capacitor circuits helps to reduce the number of circuit elements and hence make design both area and power efficient. In this book, systematic approach for time multiplexing of switched capacitor circuits is discussed. Various techniques used for time multiplexing of switched capacitors, operational amplifiers and a sub-network within a switched capacitor circuit are presented. Non-ideal effects affecting the performance of switched capacitor circuits are discussed along with compensation techniques used to minimize them. Practical implementation of various switched capacitor circuits is also exemplified. ····· 1036120674
für 64.71€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Several techniques are now being utilized to ensure efficient communications across the jam-packed radio spectrum. Chief among them are SDRs, which enable software to dynamically control communication parameters such as the frequency band, modulation type and data rates. SDR leads to delaying the binding of design decisions until execution time. Hence, the designers can incorporate the latest developments that enable them to improve the performance of the developed systems. Additionally, SDR allows both flexibility and maintenance simplicity, as most upgrades can be done by loading new software, rather than changing hardware modules. Frequency hopping is an important stage among variety of SDR applications and footprints. Although frequency hopping is not a new technique, designers are continually striving to increase the hopping rates to improve and reinforce performance in multi-path and fading channels. ····· 1036120658
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The reliable detection of water and ice over road and runway surfaces is an important issue in improving traffic safety and reducing maintenance costs, especially during winter. A literature analysis showed that different ice detection systems were developed, based on different methods, but none of them seems to be efficient for the identication of water and ice on road surfaces. A low cost capacitive sensor for the estimation of road conditions was studied. In general, the capacitance value of an electrode assembly depends on the geometrical conguration and dimensions of the electrodes, and on the relative permittivity and thickness of the material placed in between. The relative permittivity, in turn, depends on temperature and measurement frequency. The sensor consists in a multi-frequencies capacitance measurement system for the estimation of the relative permittivity of the material placed over its surface, in order to recognize the presence of air, water, and ice. The sensor is suggested as feasible for applications in monitoring road or runway conditions to support information systems assuring security and efficient maintenance of streets or airports during winter. ····· 1036120652
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray For decades, people have been trying to develop wireless/contactless power transfer technologies to drive movable loads without direct electrical contacts, with ICPT (Inductively Coupled Power Transfer) being the most popular. As a new alternative, CCPT (Capacitively Coupled Power Transfer), which employs electric field (rather than magnetic field) coupling, has drawn a great attention recently due to its inherent advantages of confined electric field between the coupling plates, power transfer capability through metal barriers, very low eddy current power losses associated with metal surroundings, and reduced circuit sizes/costs, etc. This book is about a fundamental study on CCPT technologies covering full mathematical analysis, detailed computer simulation, and practical experiments of different types of CCPT systems. The results obtained demonstrate the feasibility and potential of CCPT as an emerging wireless/contactless power transfer solution and the theory and practical design methods established lay a solid foundation for future CCPT research and development. ····· 1036120618
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray As the operating voltage scales down with the technology, SRAM cells have focus at the stability. The 9T SRAM with inherent data stability and capability of reducing the leakage power is adopted to meet the stringent requirements of the low power designs. The circuit techniques used to reduce the power dissipation and delay of these components has been explored optimum power consumption is obtained. The key to data stability is the isolation between the bitlines and the data node in the 9T SRAM cell. The division of read and write sections provide reduction in the leakage power. In order to reduce the overall power dissipation of the chip the special hierarchical technique is been adopted for implementation of the 10:1024 row decoder. This design incorporates some of the circuit techniques used to reduce power dissipation and delay. The design is simulated at a clock speed of 3.33GHz. The read access time is found to be 0.85ns while the write access time is found to be 1.246ns at pre-layout simulations. The total leakage power dissipation is 20.579mW at pre-layout simulations. The SNM for 9T cell is 9.75% more than conventional 6T SRAM cell, with leakage power reduced to half. ····· 1036120556
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This work was to establish whether it was possible to achieve a reasonable speedup by implementing FPGA based Hopfield neural networks for some simple constraint satisfaction problems. The results are significant our initial implementation using standard Xilinx FPGAs yielded 2-3 orders of magnitude speedup over the Sun Blade 2000 workstation comes with 1.2-GHz version of the 64-bit UltraSPARC III Cu processor. The main problem with the work to date is that the problems are both unrealistically small and simplistic. That is the constraints on the N-Queen problem are simpler than those found in many real world scheduling applications. Thus, it is not clear whether we will be able to optimize the neuron structure for more complex problems since the weights matrix may not contain as many zero elements. Thus a new method for speed improvement of Hopfield neural networks for solving constraint satisfaction problems using Field Programmable Gate Arrays (FPGAs) was proposed and implemented. ····· 1036120526
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This work presents an analysis on different algorithm like DES, TDES, and AES. Software development of encryption/decryption module for the two targets, programming language used is Embedded C, MikroC and Visual Studio VC++ are the compilers and Microcontroller PIC16F877A is employed. For establishing communication between the EMS simulated ECU and Transponder Simulated ECU, RF Protocol is used to achieve the low cost engine immobiliser. ····· 1036120523
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Speech coding is one of the fundamental concepts for the accommodation of number of users in a communication channel. Many algorithms are used for speech coding. A variant of Codebook-Excited Linear Prediction (CELP) speech coding is widely used in wireless telephone communication (most of CDMA networks uses this type of vocoder), and has been accepted as the international standard for transmission of speech over telephone networks. This project explains what CELP speech coding is, why it is necessary for wireless communication, and describes unique design of a CELP speech coder. The CELP coder has been highly prosperous in practice and has spawned a series of standardized coders based on the same fundamental principles. This project implements the voice coder of a fixed-codebook which consists of 256 white-noise samples and takes seven seconds to encode one second of human speech. The speech coder produces an intelligible representation of the speech signal, which is very close to the original voice. The speech encoder and decoder are simulated and the output of CELP encoder is transmitted to the CELP decoder lying in different PC. ····· 1036120492
für 35.91€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The discrete wavelet transform (DWT) plays a central role in a number of signal and image processing applications. The lifting scheme is a new algorithm proposed for the implementation of the wavelet transform. It can reduce the computational complexity of DWT involved with the convolution implementation. The lifting scheme consists of the following three steps Split, Predict and Update step. In conventional Lifting Scheme based DWT, complete image is divided into two parts that is even and odd image pixels. One even and one odd image pixel leads to PREDICT and UPDATE steps. In Piecewise Lifting Scheme DWT, image is not divided into even and odd sections, but the complete image is windowed. Windowing technique is applied throughout the complete image so as to have equal number of pixels in each window. Lifting Scheme provides zoom in and zooms out of image. The main advantage of the proposed architecture is its inherent speed due to elimination of the multipliers in computing DWT/IDWT. ····· 1036120491
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Research focus today, is moving towards the development of Software Defined Radio (SDR), a hand-held device capable of accessing any kind of wireless infra-structure. Major milestone in the realization of true SDR is the development of efficient baseband processing block. This book is not only an introduction to digital baseband processors for SDR but also a handbook for a novel and robust radio prototyping platform. It gives the insight of a complete hardware design of a wireless standard in a reconfigurable environment. It takes you through system design to different development steps and finally makes a picture of a new coarse grained FPGA fabric as a reconfigurable hardware to incorporate parameterization capabilities of SDR. It also discusses the design parameters of baseband processing blocks to handle computational load of current wireless technologies. ····· 1036120478
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Image processing was first implemented in Newspaper industry, in 1920 s. At that time, sending an image from one city to other was a very time consuming process and use to take hours for its completion. It was preferable to send text news to save time. Image processing at that time was meant for transferring an image through some communication channel to some remote location. With the passage of time, as the technology evolved, image processing field also evolved and become a most useful way to represent information. The applications of image processing field become vast in all the areas and implemented with almost all major technology implications. ····· 1036120370
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray While data converters have been around for nearly nighty years, mm-wave data converters are still in their infancy. Only recently the 40-GHz sampling barrier was broken with the introduction of the next generation high-speed sampling oscilloscopes. Meanwhile, data communication is the main driving force behind mm-wave data converter development. As with any mm-wave circuit, designers must go beyond simply relying on technology advancement to archives acceptable performance. Careful device and passive modeling is critical and systematic design methodology may offer repeatable and scalable mm-wave designs. In this book the design methodology and architectural challenges of mm-wave ADCs are explored. Some of the fundamental mm-wave ADC building blocks such as track and hold amplifiers, data distribution networks and flip-flops are implemented in SiGe BiCMOS and CMOS technologies and characterized. Several record breaking circuits are presented along with systematic design methodology. The impact of these circuit blocks on the performance of the next generation ADCs is studied and experimentally verified using a 35-GS/s, 4-bit ADC-DAC chain implemented in a SiGe BiCMOS technology. ····· 1036120331
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The names of the authors are well known in the research field. They are exploring their knowledge in almost every field. The topic Wireless Sensor Networks is the root of automation systems. After reading this book, you will get to know about the Deployment of Wireless Nodes in a particular area. This book will act as an encyclopedia for those researchers doing research in Sensor Networks. It took 1 long year to carried such a high quality work. ····· 1036120324
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This book is good for Students who are doing their graduation and Masters in the field of Electronics and telecommunication Engineering.Also it is useful for Engineers working in consumer electronics on remote controls. In this step by step guide you will learn how to make your own hardware for decoding and sending infrared codes to control home appliances, how to configure them and make them part of your operating system and use it for industrial applications. This book will guide you through the steps to convert your home to a smart home.So a homeowner on vacation can arm a home security system, control temperature gauges,switch appliances on or off, control lighting, program a home theatre or entertainment system, and perform many other tasks. Smart home became smarter if the controlling can be done from any remote place. This books will provide you enough material to make your home smart. ····· 1036120222
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Semiconductor thin films and their junctions such as metal-semiconductor (Schottky barrier) and heterojunctions have received much attention due to their applications in various electronic and optoelectronic devices including solar cells. This book is based on the electrical and optical studies of thin film Schottky barriers and heterojunctions with an aim to use in optoelectronic devices. In this work, two wide band gap semiconductors, one Zinc Selenide (ZnSe) from group II-VI, and another transparent conducting oxide, Indium Tin Oxide are investigated in the forms of thin films and their junctions, for the possible uses as photovoltaic converter. The structural, morphological, optical and electrical (in dark and under illumination) properties of ZnSe and ITO thin films prepared at different growth conditions by thermal evaporation method have been studied by applying different experimental techniques. Schottky barriers and heterojunctions of ZnSe with different barrier metals and semiconductors have been fabricated and their current-voltage and photovoltaic characteristics are studied. The findings of it presented in this book will be helpful for the researchers of this field. ····· 1036120106
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The calibration of Vector Network Analyzer (VNA) is carried out to compute the error coefficients and to correct the raw data. Several Calibration algorithms are used to calibrate 2-port VNA. Some of the well known calibration procedures are Thru-Short-Delay (TSD) and Thru-Reflect-Line (TRL), Short-Open-Load-Reciprocal (SOLR) and Line-Reflect-Match (LRM). In this book, all the state-of-art calibration techniques have been thoroughly studied. Some of the well known calibration procedures are mathematically analyzed and implemented. Several on wafer devices are measured and their data is corrected by different calibration algorithms mentioned above. Then all the experimental results of different calibration techniques are compared and commented. The advantages and disadvantages of different calibration algorithms are also discussed. ····· 1036120037
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The rapid expansion of the internet in the past years has rapidly increased the availability of digital data such as audio, images and videos to the public. The problem of protecting multimedia information becomes more and more important and a lot of copyright owners are concerned about protecting any illegal duplication of their data or work. This is an interesting challenge and this is probably why so much attention has been drawn toward the development of digital information protection schemes.Of the many approaches possible to protect visual data, digital watermarking is probably the one that has received most interest. The idea of watermarking of images is to embed information data within the image with an insensible form for human visual system and the goal is to produce an image that looks exactly the same to a human eye but still allows its positive identification in comparison with the owner`s key if necessary. ····· 1036119978
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray In this book a new structure of 1-N coder which is a part of an ADC architecture is implemented and compared with priority encoder which is another alternative(it is explained as well). 2:1 muxes are used in the architecture of 1-N encoder. Also the study includes shematic and layout apperance of other blocks. Cadence IC 5141 package and CMOS TSMC 0.18um library are used in the design. The power consumption is 30uw under the power supply -0.9 to +0.9 and effective area of the chip is 2400 micrometers square. Flash ADC architecture is the most simple one , thats way this type of ADC is presented . Simulation results which are enough to understand how ADCs work are also presented for both alternative. Aditionally ADC parameters (static and dynamic) and other ADC architectures is mentioned with details.Finally It is possible to learn from this book main concepts of microelectronics and how digital and analog CMOS circuits work. Readers can design a flash ADC easily with other alternatives after examine this study. I believe that informations included in this book is fine to begin with ADCs and microelectronics. ····· 1036119959
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray An aircraft autopilot is a combination of mechanical, electrical & software systems that guide a vehicle without human intervention. Piloting aircraft is a very complex & tedious job resulting in wear & tear of pilots in long distance flights. Autopilot feature in aircraft`s helps to reduce the work load on pilots making them more productive & active. This project aims at design & implementation of Auto Pilot Control System. Thrust required to take off flight along with added payload can be achieved by giving PWM pulse to the main motor. Main motor draws high amount of current which can be supplied using H-brigde circuit. Sensors such as Ultrasonic sonar & Accelerometer are placed onboard to limit the flight height &caliberate the tilt angle respectively. Microcontroller & Power supply to onboard electronic components are placed off the board to reduce the payload of the flight. Flight is being very sensitive to added additional payload, making it difficult to stabilize. Stability greatly matters to safe take off & landing of the flight & to avoid the vibration of the flight body. Stability of the flight can be greatly enhanced by introducing the Gyroscope to re-orient the flight. ····· 1036119941
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Digital Subscriber Line (DSL) combines the advantages of providing fast means of internet access with the usage of an existent infrastructure known as the Plain Old Telephone Services (POTS). Transmissions that are use higher frequencies are more subject to attenuation and to crosstalk. Crosstalk is the undesired radiation of energy among wires. It is more likely to occur among/between similar frequencies and results in received signal that differs from the original signal form that was sent. In other words, crosstalk is a disturbance caused by the electric or magnetic fields of one telecommunication signal affecting a signal in an adjacent circuit. This book consists an analysis of crosstalk in various DSL. ····· 1036119879
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This book presents optimal design and best placement of power system stabilizers in multi-machine power system. Power system oscillation damping remains as one of the major concerns for secure and reliable operation of large power systems. When power systems are operating under stringent conditions, the inception of poorly damped low-frequency inter-area oscillations may lead to system-wide breakups or considerably reduce the power transfers over critical corridors. To provide fast damping for the system and thus, to improve dynamic performance, a supplementary control signal in the excitation system and/or the governor system of a generating unit can be used. Request of power system stabilizers have become the first measure to increase the system damping. The design problem of power system stabilizers can be formulated as an optimization problem and an effective optimization technique could provide a reliable solution for the problem. In addition, this book proposes an effective optimization algorithm based on particle swarm optimization with the purpose to enhance the feasibility, solution quality and convergence speed of the original algorithm for the solution. ····· 1036119857
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The purpose of this project is to design a low noise amplifier (LNA) for a radio telescope. The LNA is an electronic amplifier used in communication systems to amplify extremely weak signals captured by antennae. This thesis describes the procedure of designing an LNA for 7 GHz frequency. Noise matching is an important technique which was considered in the design process. The designed LNA achieved a gain of 30 dB with 1 GHz bandwidth. The noise figure achieved was less than 2.9 dB. Return-losses were improved by 6 dB with a new proposed optimization method. ····· 1036119725
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The large advancement achieved in Global Navigation Satellite Systems (GNSS) technologies makes it indispensable to our society, ranging from scientific research to people`s ordinary life. However, multipath effects have become one of the limiting error sources to the further improvements in performance. In this book, the reasons why multipath can cause severe errors to GNSS receivers are analyzed, and a new multipath mitigation architecture, namely Coupled Amplitude and Delay Lock Loops (CADLL), is presented. The CADLL architecture uses the idea of separately tracking the line-of-sight signal and multipaths, thus boosting the performance. A new Angle-of-Arrival (AOA) estimation algorithm using antenna array, namely iterative Maximum Likelihood Estimation (iMLE), is also presented in this book. iMLE has the advantages of low computational complexity, fast and global convergence and better estimation accuracy. It is a promising method for mitigating very near multipath mitigation in the future work. ····· 1036119712
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Agricultural products are diversified, complicated and the machine mechanism should adapt to physical properties and cultivation methods biologically. Automation and mechanization technology in agricultural and plantation industry is still new. The application of computer, mechatronics and machines for agricultural production has been one of the outstanding developments in Malaysian agriculture. This book describes on the recent research at Malaysian public university on the uses of computer and electronics towards machines for the agricultural operations. This book consists of four research articles on application of computer and electronic in agriculture. The first project describes on the stages of design, fabrication and testing for the development of stand alone agriculture machine of dioscorine removal system. Second project introduced the development of a real time automatic temperature and relative humidity control system in the lowland tropical greenhouse by using a micro-controller. The third project was the on-line automated weedicide sprayer system and the fourth project describes on the Computer-controlled system for autonomous tractor in agricultural application. ····· 1036119687· 1 · ::::: · 37 ·· 38 ·· 39 ·· 40 ·· 41 ·· 42 ·· 43 · ::::: · 46 ·
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