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
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray In electronics, a hardware description language or HDL is any language from a class of computer languages, specification languages, or modeling languages for formal description and design of electronic circuits, and most-commonly, digital logic. It can describe the circuit`s operation, its design and organization, and tests to verify its operation by means of simulation. HDLs are standard text-based expressions of the spatial and temporal structure and behaviour of electronic systems. Like concurrent programming languages, HDL syntax and semantics includes explicit notations for expressing concurrency. However, in contrast to most software programming languages, HDLs also include an explicit notion of time, which is a primary attribute of hardware. Languages whose only characteristic is to express circuit connectivity between hierarchies of blocks are properly classified as netlist languages used on electric computer-aided design (CAD). ····· 1036119649
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Metal-semiconductor contacts are an obvious component of semiconductor device. The current-voltage characteristics of actual metal-semiconductor Schottky-barrier contacts are known to differ from the ideal ones. Considerable scientific interest has been devoted to this situation since the last century. One of the most probable reasons of this deviation is the presence of an intermediate layer between the metal and semiconductor. The presence of interface layer may lead to such effects as the potential drop at the interface layer and barrier lowering, reduction of space charge region, the tunnelling of the electrons through the barrier, and all this, in turn, may be the reason of strong discrepancy in real electrical characteristics of metal-semiconductor contacts. The theme of this thesis is devoted to investigation of the intermediate layer in the metal-semiconductor contact obtained by diffusion welding (DW). ····· 1036119578
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The book covers the subject of NDT (Non-Destructive Test) applied to the case of magnetic techniques (magneto-inductive method), mainly on the field of rope transportation, but also offers a strong analysis of other possible application fields of the technology (as an example, NDT of metallic sheet). Mechanical design, electronic design and also acquisition system development and software design are covered inside the book, and experimental and on-field results are presented. ····· 1036119567
für 61.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Most of the coal mining operations need prompt and quick decisions for avoiding major disasters. The prompt and reliable information is essential to management for taking efficient decisions. Particularly, during adverse behavior of roof strata and supports to avoid loss of production and safety. The real time (RT)system is more appropriate for longwall chock shields performance monitoring and analysis due to its prompt and real time operations. Therefore, the RT system with wireless data acquisition was successfully developed and implemented in experimental longwall coal mine for monitoring, analysis and forecast of adverse working conditions in real time. The system was successfully recorded several roof strata problems and initiated warning during adverse strata behavior. Thereby, it improved efficiency and productivity of longwall mining operations. The system was successfully characterised performance of chock shields. Therefore, the investigations carried out by the author and elaborations in this book are definitely useful to the mining industry for efficient planning and execution to achieve enhanced productivity and safety. ····· 1036119537
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Achieving high performance is one of the most difficult challenges in designing digital circuits. Flip-flops and adders are key blocks in most digital systems and must therefore be designed to yield highest performance. In this book, a new high performance serial adder is developed while power consumption is attained. Also, a statistical framework for the design of flip-flops is introduced that ensures that such sequential circuits meet timing yield under performance criteria. Firstly, a high performance serial adder is developed based on the idea of having a constant delay for the addition of two operands. While conventional adders exhibit logarithmic delay. Also the proposed adder exhibits less area and power consumption. Secondly, a statistical framework for the design of flip-flops under process variations is presented in order to maximize their timing yield. In nanometer CMOS technologies, process variations significantly impact the timing performance of sequential circuits which may eventually cause their malfunction. Therefore, developing a framework for designing such circuits is inevitable. ····· 1036119426
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This thesis work presents two solutions to the problem of mobile communications degradation due to interfering background signals. The target lies in getting an estimation of the background noise signal that accompanies a conversation and eliminating it. The proposed solutions allows mobile communication anywhere without worrying about the background noise that exists and how it interferes with the ease of conducting the conversation, as these signals are filtered before reaching the recipient. The background noise will be reduced and the overall quality of the signal improved thus achieving a clearer conversation without noise interference depending on where it takes place. There are several different techniques used for noise cancellation but this thesis focuses mainly on Wiener and Spectral subtraction algorithms. ····· 1036119366
für 58.41€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The present work makes use of the unique features of fractals such as self similarity and space-filling properties to realize antennas that are characterized by multiband and compact size. The application of the geometric partial arrangement property which known as (Koch) with fourth iteration is adopted in this work. Several tests are conducted to make these antennas operate within the frequency bands (2.4 GHz and 5.8GHz) standards IEEE 802.11 b/g and IEEE 802.11a respectively for the purposes of wireless communication applications. Modeling and performance evaluation of the proposed antennas are analyzed and optimized using CST software package, which utilizes the Finite Integral Technique (FIT) for electromagnetic computation. In this work, new four miniaturized antennas with multiband behavior are proposed. Each one of these antennas based on the basis of a well-known antenna called Planar Inverted F-Antenna (PIFA), commonly used as a single-band antenna in mobile terminals.The proposed antennas are Fractal Planar Inverted F-Antenna,Slot-Fractal Planar Inverted F-Antenna, Folded- Fractal Planar Inverted F-Antenna, and Rotated Folded -Fractal Planar Inverted F-Antenna. ····· 1036119325
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Digital signal processors (DSPs) are essential for real-time processing of digitized data and performing the high-speed numeric calculations necessary to enable a broad range of application areas such as wireless communications, audio and video, etc. This technical write up gives implementation of motion detection algorithm in Blackfin BF533 processor board and MATLAB. The different computation of Sigma-Delta motion detection algorithm like Background Subtraction, Motion likelihood measure, variance which is defined as the Sigma-Delta mean of N times the non-zero differences, motion computation by comparing between the difference and the variance is implemented. The performance is compared between the algorithm implementation on the BF533EZKitLite and MATLAB simulation. The flowchart representation for the design is implemented. The two images are captured by using digital CCD camera interface with a Blackfin BF533 processor is taken and Sigma-Delta motion detection algorithm is implemented, and the status whether motion is detected or not is displayed. ····· 1036119238
für 35.91€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray A system of microring resonators (MRRs) connected to an optical modified add/drop filter system is used. The optical soliton pulse of 60 GHz frequency band can be generated and used for millimeter waves in radio over fiber (ROF) applications. Wireless Personal Area Network (WPAN) as IEEE 802.15.3c is one of the applications for the ROF. The system uses chaotic signals generated by a Gaussian laser pulse propagating within a nonlinear MRRs system. The chaotic signals can be generated via a series of MRRs. The IEEE 802.15.3c standard operates at the 60 GHz frequency band, and it is applicable for a short distance optical communication such as indoor systems, where the higher transmission data rate can be performed using a high frequency band of the output optical soliton pulses. ····· 1036119211
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Recently, Multicarrier Modulation find wide application in many areas of communication Engineering like IEEE 802.11a/g, IEEE 802.16e,IEEE 802.20, DVD, DAB, ADSL and VDSL, etc. The orthogonal property provides optimum loading of the channel spectrum with effective suppression of Interferences parameters, i.e., ICI and ISI. The TMUX is the major component of MCM system. It works like a dual of Filter bank and can be efficiently realized using basic properties of Multirate signal processing. The CMFB is one of the computationally efficient techniques for the implementation of filter bank in NPR condition. The required prototype filter can be obtained using Window approach. In real time environment, the reconstructed output at the receiving end is distorted due to mixing of different errors and interference signals. A linear bisection type optimization technique is applied to minimize these undesired parameters and obtained the output near to perfect reconstruction. The NUFB is types of filter bank which is used in processing the signals of different natures like audio, video and data. The optimized tree structure approach is used here to design NUFB with linear phase property. ····· 1036119210
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Cerebral palsy (CP) is a condition where children have problem controlling their movement, body position and coordination as a result of either retarded development or damage in the brain. Since the disorder is usually caused by a trauma to the brain, the speech function is often damaged as well. Additional problems in communicating can come from the inability to motion or communicate using the body language. Speech is a human express orally through a series of complex movements that alter the basic tone created by voice. So, CP s speech is a rare and unique from the normal human because of the error of connections between the cortex and other parts of the brain such as the cerebellum. Normal human feels really hard to understand the CP s speech when they communicate each other. Technology is one of the solutions that can help the CP s speech problem by creating software that can convert the speech or voice to the text. ····· 1036119144
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This book presents an innovative theory of active circuit topologies exhibiting the negative group delay (NGD) function appli. in RF/electronic engineering. The basic properties of this abnormal function are established. An analogy between the NGD behaviour and filter gain is developed. Then, several elementary cells operating as low-pass, high-pass, band-pass and stop-band circuits are identified. Then, simulation and experimental results in very good agreement with the theory are offered. Design techniques of NGD low-pass and band-pass proof of concepts respectively operating with super ultra-wide band (UWB) RF signals are described. It is demonstrated theoretically and experimentally that the NGD circuits enable to realize the propagation of limited bandwidth signals with negative time-delay and applications for pure delay cancellation. In other words, the possibility of certain signal wave forms anticipation was verified in theory, simulation and practice. The feasibility of the NDG multiband devices implementation and digital FIR/IIR circuits is presented. Novel topologies of distributed circuits potentially integrable and susceptible to operate up to tens GHz are examined. ····· 1036119089
für 49.41€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The existing and emerging next generation of wireless communication standards assume that the end-users use omni-directional antennas, radiating in all directions. This has been a barrier to network capacity and efficiency. Multiple input multiple output (MIMO) is considered as a key smart-antenna technology, to improve the capacity of a communication channel at a greater extent as compared to single input single output (SISO) and single input multiple output (SIMO) techniques. MIMO is a technology which uses multiple antennas both at transmitter and receiver ends to increase the overall data transmission rate and provide higher spectral efficiency. The MIMO antennas have been an area of extensive research all over the world during recent years because of their ability to increase the system capacity without increasing the channel bandwidth. The LTE based mobile devices recommend the use of small-scale and multi-band MIMO antennas. The primary aim of this book is to design, simulate and characterize a dual-band antenna array for LTE and MIMO applications. The antennas cover two 4G LTE frequency bands of 2.1GHz (LTE Band-1) and 3.5GHz (LTE Band-22). ····· 1036119003
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This book on Study of opto-electronic properties of ternary chalcopyrite and binary solids is primarily intended for students preparing for Ph. D. degree examination. The book has been divided into eight chapters including the topics on basic theory of ioni8city and its related properties. we hope that this book will be found useful by the students and teachers in the various institutions. We will appreciate any suggestions for improvement of the book. ····· 1036119002
für 61.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The concept of radiation from microstrip antenna was proposed about three decades ago. Because of numerous advantages of these antennas over the conventional microwave antennas like light weight, low cost, low volume, planar structure, conformability to any surface, and compatibility with integrated circuit and solid state devices, such antennas are of great interest for a diverse range of applications in terrestrial and satellite communications systems. One of the interesting features of microstrip antennas is that they are capable of radiating power in linear as well as circular polarization mode. Recently, the development of a microstrip antenna with dual-band and dual polarization features has drawn considerable attention to the scientists and engineers for its important applications in SAR systems, mobile communications etc. The research interest of the author is thus focused on the development of such microstrip antennas for dual-band operations. The design and development of various microstrip antenna structures with dual-band operation capability has been discussed in this monogram. ····· 1036118953
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Microstrip Technology by reducing volume and weight. The filters so designed must have a rejection of unwanted signals by more than 45 dB about 50MHz around cut of This book covers the aspects of miniaturization of the microwave band pass filter by designing the filter in various topologies suitable for airborne application using Microstrip transmission lines for 1GHz clock source. The project is to miniaturize L-Band Microstrip Band Pass Filter by using EESOF software (Frequency Domain Analysis) and GENESYS software as a tool. The Project shall be concluded with the comparison of the test results viz. dimensions, insertion losses, and rejections so as to optimize the parameters suitable for development of a band pass filter for air borne applications. ····· 1036118935
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Induction motors are widely used in industries.some electric faults may cause malfunctioning of it, so protection of it against these incipient faults is very necessary. This monograph refers to an approach of protection of motor using micro-controller.It emphasizes on PIC 18F4431 family controller to detect the faults and protect them. some simulink modelling and simulations are done to find the tolerable limit values. ····· 1036118924
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The aim of this book is to present new routing protocols/schemes which perform energy-efficient clustering and data aggregation within a cluster for reducing the load energy at cluster-heads to provide energy efficiency for prolonging the network lifetime, stability and throughput. This book mainly reports on the issues of energy efficiency, heterogeneity, lifetime, single-hop routing, multi-hop routing, fault tolerance and network deployment cost. ····· 1036118912
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This deals with the implementation of wireless communication systems in PLC for replacing the existing fiber optic cables which is currently used in the industries. We have given the idea on replacing the existing fiber optic system into wireless which reduces the cost abruptly. Then we also deal with the TESTBED for SCADA which gives a password protection to the existing SCADA design since SCADA system is not secured. This book mainly focuses on the security system of an oilfield, there we have tried to implement wireless communications on the security systems of the oil field like night patrol, level detection, oil well shut down etc. These factors can be extended according to the requirement of the project. The SCADA design mentioned in this project is for the disused PLC control system. We have secured the SCADA system by adding a extra feature to it. ····· 1036118898
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Electromyography (EMG) signal gives an electrical representation of neuromuscular activation associated with contracting muscle provides information about the performance of muscles and nerves. EMG signal acquires noise while traveling through different tissues. With the appropriate choice of the Wavelet Function (WF), it is possible to remove interference noise. Higher Order Statistics (HOS) can suppress white Gaussian noise in detection, parameter estimation and solve classification problems. Based on the RMS error, it is noticed that WF db2 can perform denoising most effectively among the other WFs (db6, db8, dmey). Power spectrum analysis is performed to the denoised EMG where mean power frequency is calculated to indicate changes in muscle contraction. Gaussianity and linearity tests are conducted to understand changes in muscle contraction. According to the results, increase in muscle contraction provides significant increase in EMG mean power frequency. The study also verifies that the power spectrum of EMG shows a shift to lower frequencies during fatigue. The bispectrum analysis shows that the signal becomes less Gaussian and more linear with increasing muscle force. ····· 1036118896
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· 1 · ::::: · 38 ·· 39 ·· 40 ·· 41 ·· 42 ·· 43 ·· 44 · ::::: · 46 ·
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