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Articles 1 - 30 of 51
Full-Text Articles in Electrical and Computer Engineering
Programs Of Fuzy Systems, D. K. Chaturvedi
Programs Of Fuzy Systems, D. K. Chaturvedi
D. K. Chaturvedi Dr.
The zip file contains c programs of fuzzy system.
Matlab Program Of Genetic Algorithms, D. K. Chaturvedi
Matlab Program Of Genetic Algorithms, D. K. Chaturvedi
D. K. Chaturvedi Dr.
The zip file contains Matlab program of genetic algorithms and their varients.
Ann /Gn Programs, D. K. Chaturvedi
Ann /Gn Programs, D. K. Chaturvedi
D. K. Chaturvedi Dr.
The file contains programms of multi layer feedforward backpropagation ANN, GN and their varients.
Advanced Wide-Area Angle Stability And Voltage Control, Arturo Roman Messina, Ramon Jimenez, Rafael Castellanos
Advanced Wide-Area Angle Stability And Voltage Control, Arturo Roman Messina, Ramon Jimenez, Rafael Castellanos
A. R. Messina
No abstract provided.
Analysis And Improvement Of Multiple Optimal Learning Factors For Feed-Forward Networks, Praveen Jesudhas
Analysis And Improvement Of Multiple Optimal Learning Factors For Feed-Forward Networks, Praveen Jesudhas
Electrical Engineering Theses
The effects of transforming the net function vector in the Multilayer Perceptron (MLP) are analyzed. The use of optimal diagonal transformation matrices on the net function vector is proved to be equivalent to training the MLP using multiple optimal learning factors (MOLF). A method for linearly compressing large ill-conditioned MOLF Hessian matrices into smaller well-conditioned ones is developed. This compression approach is shown to be equivalent to using several hidden units per learning factor. The technique is extended to large networks. In simulations, the proposed algorithm performs almost as well as the Levenberg Marquardt (LM) algorithm with the computational complexity …
A Tutorial On Lte Evolved Utran (Eutran) And Lte Self Organizing Networks (Son), Dhruv Sunil Shah
A Tutorial On Lte Evolved Utran (Eutran) And Lte Self Organizing Networks (Son), Dhruv Sunil Shah
Electrical Engineering Theses
The third-generation (3G) cellular communication technology, Universal Mobile Terrestrial System (UMTS), based on Wideband Code-Division Multiple Access (WCDMA), has been widely deployed all over the world providing faster download speeds for data (packet) communications. To further improve the throughput and overall performance of the cellular communication system established by UMTS, the Third Generation Partnership Project (3GPP) in November 2004 launched an ambitious project called the Long Term Evolution (LTE) of UMTS. This would ensure the continued competitiveness of the UMTS in the future. The technical specifications of the LTE project are formally known as the Evolved UMTS Terrestrial Radio Access …
The Self-Heating Effects Of Bipolar Juction Transistors On The Functionality Of A Current Feedback Amplifier, Xuesong Xie
The Self-Heating Effects Of Bipolar Juction Transistors On The Functionality Of A Current Feedback Amplifier, Xuesong Xie
Electrical Engineering Dissertations
Self-heating effects strongly affect the performance of modern silicon-on-insulator (SOI) bipolar junction transistors. This research work does an extensive analysis of self-heating effects on large-signal behavior, small-signal behavior and transient operation of bipolar junction transistors. The two mechanisms in which device temperature affects large-signal behavior of a BJT transistor are investigated, i.e. the common-emitter (CE) configuration is to be driven by a constant base-emitter voltage and a constant base current. It is shown that the output characteristic of a BJT transistor is less sensitive to self-heating under a fixed base current than a fixed base-emitter voltage. A simple method of …
Position Sensorless Control Of A Magnetically Levitated (Maglev) System, Esteban Ricardo Noboa
Position Sensorless Control Of A Magnetically Levitated (Maglev) System, Esteban Ricardo Noboa
Electrical Engineering Dissertations
The main focus of this investigation is the development and implementation of a sensorless position estimation method and hysteresis position controller for a laboratory-based Maglev system. The proposed estimation method and controller are first validated through modeling and simulation. This sensorless scheme makes use of the maglev system's magnetic signature, namely, its inductance and requires only active phase current measurements. These measurements are then used along with the phase voltage equation to estimate position information that is in a one-to-one correspondence with the system's inductance. The theoretical aspects of the sensorless scheme are described. Finite element analysis (FEA) as well …
Convert Uhf Rfid Tag From Passive To Semi-Passive Tag Using External Power Sources, Tanvi Mehta
Convert Uhf Rfid Tag From Passive To Semi-Passive Tag Using External Power Sources, Tanvi Mehta
Electrical Engineering Theses
In this thesis, I present novel circuit designs that convert a passive radio frequency identification (RFID) tag into a semi-passive RFID tag. Passive RFID tags are relatively inexpensive to purchase and to integrate into objects and devices. However, in some environments and on some objects the performance of the pure passive tags is not sufficient for the intended applications. A semi-passive tag, in comparison to a pure passive tag, has significantly greater communication range since the semi-passive tag derives its operational power from an on-tag power source instead of just from an interrogator's communication signal. As a result, semi-passive tags …
Capacitive Strain Sensors For Measurement Of Large Strain For Structural Health Monitoring, Clement Jacob
Capacitive Strain Sensors For Measurement Of Large Strain For Structural Health Monitoring, Clement Jacob
Electrical Engineering Theses
Structural health monitoring (SHM) is increasingly used to replace time based management, with a more efficient Condition Based Maintenance (CBM). The traditional scheme of scheduling down time for aircraft inspection or periodic evaluation of civil infrastructure costs millions of dollars in maintenance due to either downtime or lack of timely maintenance. SHM involves periodic, real time sampling and analysis of signals, from onboard sensors like accelerometer, pressure, strain or acoustic sensors to determine the condition of the structure. This can be used to carry out immediate repairs as well as predict failure. We report the development of a new high …
Tutorial On Network Quality And Ims Services Used In Lte, Ayush Maheshwari
Tutorial On Network Quality And Ims Services Used In Lte, Ayush Maheshwari
Electrical Engineering Theses
3rd Generation or 3G technologies like WCDMA, HSPA and GPRS are very advanced technologies in themselves. They allow data downlink speeds of up to 7Mbps and will soon be offering up to 14Mbps. The number of people using these networks has crossed 70 million users worldwide and with ever increasing users we need to provide a solution to handle the new and improved services which are being designed daily to work on mobile devices. Long Term Evolution (LTE), will be one of the two technologies which will meet the ITU's IMT-Advanced requirements for 4G technologies. 3G Partnership Project (3GPP) is …
A Tutorial On Functionality Of Wimax And It's Performace Evaluation, Amay Dhirendra Umradia
A Tutorial On Functionality Of Wimax And It's Performace Evaluation, Amay Dhirendra Umradia
Electrical Engineering Theses
Recently, there have been tremendous developments on wireless communication technology which have predicted to replace the wirelined system and provide incredible bandwidth to the consumers. The IEEE standard for this technology is known as 802.16e (Mobile WiMAX) which was officially published in the year 2006. WiMAX would provide broadband access to rural and developing countries where the option of DSL, cable and Wi-Fi is unavailable. This Thesis provides a tutorial overview of 802.16. The information for this article is gathered from The Institute of Electrical and Electronics Engineers (IEEE) website, the WiMAX forum website and other resources on the internet. …
Neuro Adaptive Control For Aerospace And Distributed Systems, Abhijit Das
Neuro Adaptive Control For Aerospace And Distributed Systems, Abhijit Das
Electrical Engineering Dissertations
Nonlinear and adaptive control is generally considered one of the most effective techniques for stabilizing complex nonlinear systems, where linear control techniques may fail completely. Thousands of research papers are published on either theory or applications of nonlinear and adaptive control. But often one obvious question arises how to implement these techniques in real life model? The best answer that one can think of is to develop simple nonlinear control laws which are easy to implement. Moreover for controlling multi-agent systems, it is often required to distribute the control laws based on limited information available among the agents. This research …
An Ultra Wide Band Cmos Low Noise Amplifier Design, Nahusha Bhadravati Mohankumar
An Ultra Wide Band Cmos Low Noise Amplifier Design, Nahusha Bhadravati Mohankumar
Electrical Engineering Theses
An RF ultra wide band low noise amplifier designed for the frequency range of 12-18 GHz of operation is presented in this paper. The low noise amplifier is designed using the state-of-the-art complementary metal oxide semiconductor 45 nm technology. Berkeley's Predictive Technology Model (PTM) is used to generate a fairly accurate mathematical model and the SPICE data is implemented into the BSIM 4 version of the Advanced Design Systems (ADS) program. The low noise design strategy is mainly based on the analysis of high frequency CMOS operation. This LNA has two stages: the first stage is a RL feedback amplifier …
A High Fill Factor Cmos Image Sensor For Ir Camera Applications, Daniel Mcbride
A High Fill Factor Cmos Image Sensor For Ir Camera Applications, Daniel Mcbride
Electrical Engineering Theses
In this thesis, a unit cell for high-SNR applications is presented. The proposed circuit is significantly smaller than other circuits that perform dark current subtraction because less circuitry is used inside the unit cell. The proposed circuit uses only two transistors and one resistor inside each unit cell to suppress the dark current. The size of the circuit in the layout is 25 um x 25 µm. With this new unit cell and routing approach, the size of the unit cell was reduced by 300% compared to other circuits which also suppress dark current.
Wavelet Based Array Comparative Genomic Hybridization And Mass Spectrometry Data Analysis, Nha Nguyen
Wavelet Based Array Comparative Genomic Hybridization And Mass Spectrometry Data Analysis, Nha Nguyen
Electrical Engineering Dissertations
As a highly efficient technique, array-based comparative genomic hybridization (aCGH) methods allow the simultaneous measurement of genomic DNA copy number at hundreds or thousands of loci and the reliable detection of local one-copy-level variations. The identification of these DNA copy number changes provides insights to facilitate both the basic understanding of cancer and its diagnosis. In order to effectively analyze aCGH data, various techniques have been proposed to help researchers smooth the DNA copy number data and subsequently to quantify the alterations. In this thesis, many wavelet based methods are proposed to smooth and segment the aCGH data that is …
Optimization Of Phev Charging Station, Feiran Huang
Optimization Of Phev Charging Station, Feiran Huang
Electrical Engineering Theses
Plug-in hybrid vehicles are the most feasible approach towards significantly lowering the consumption of oil and improve fuel economy with today's existing technology. In Electric Power Research Institute and the Natural Resources Defense Council (EPRI-NRDC) 2007 study already proved that PHEVs will reduce emissions if they are broadly adopted. However, the charging infrastructures/station become key factor in the success of prevail of PHEVs.The research of this paper is focusing the operation of the PHEV charging station with battery storage units. The battery units conserve the low price clean energy and discharge when demanded. The on-site installed photovoltaic (PV) and off-site …
Real Time Condition Monitoring Of Chemical Batteries, Anahita Banaei
Real Time Condition Monitoring Of Chemical Batteries, Anahita Banaei
Electrical Engineering Dissertations
Li-Ion batteries are suitable rechargeable choices for electric and hybrid electric vehicle (EV/HEV) applications due to their relatively high level of energy and power density. One of the important issues in automotive batteries is to monitor their online state-of-charge (SOC) and state-of-health (SOH).Hence, development of an efficient method for monitoring their online state-of-charge (SOC) and state-of-health (SOH) is of high importance for vehicular applications. Open circuit voltage, as one parameter used for predicting the SOC of the battery, is not readily available during charge and discharge cycles. A wide variety of research has been done on SOC and SOH estimation …
Complexity Reduction For Vp6 To H.264 Transcoder Using Motion Vector Reuse, Jay R. Padia
Complexity Reduction For Vp6 To H.264 Transcoder Using Motion Vector Reuse, Jay R. Padia
Electrical Engineering Theses
VP6 is a video coding standard developed by On2 Technologies, Inc. It is the preferred codec for Macromedia Flash 8 video. VP6 gained importance with Macromedia Flash emerging as a widely adopted video streaming technology over the internet. H.264 is currently one of the most widely accepted video coding standards in the industry. It enables high quality video at low bitrates. Adobe adopted H.264 for its Flash video in August 2007. Adobe looks at adoption of H.264 as a major step towards enabling high quality video on the web. Hence there is increasing importance of techniques which can convert video …
Alternative Matching Schemes For Automatic Fingerprint Identification Systems, Michael Jason Futer
Alternative Matching Schemes For Automatic Fingerprint Identification Systems, Michael Jason Futer
Electrical Engineering Theses
Biometrics is a recognition technology that uses the unique behavioral and physiological traits of the human body as identifiers. The fingerprint is one of the oldest and most widely used forms of biometric identifiers. In this thesis, an automatic fingerprint identification system designed by a previous Electrical Engineering graduate student at The University of Texas at Arlington is upgraded with the purpose of improving matching accuracy. A review of the baseline automatic fingerprint identification system is provided as a reference point for improvements in the system. Then, improvements to the image enhancement stage of the baseline system are discussed. They …
A Ph Sensor Based On A Flexible Substrate, Wen-Ding Huang
A Ph Sensor Based On A Flexible Substrate, Wen-Ding Huang
Electrical Engineering Dissertations
pH sensor is an essential component used in many chemical, food, and bio-material industries. Conventional glass electrodes have been used to construct pH sensors, however, have some disadvantages. Glass electrodes are easily affected by alkaline or HF solution, they require a high input impedance pH meter, they often exhibit a sluggish response. In some specific applications, it is also difficult to use glass electrodes for in vivo biomedical or food monitoring applications due to the difficulty of size miniaturization, planarization and polymerization based on current manufacturing technologies. In this work, we have demonstrated a novel flexible pH sensor based on …
Charge Pump Circuit, Paras Shah
Charge Pump Circuit, Paras Shah
Electrical Engineering Theses
The sole aim of this work is to show how to generate higher voltages greater than the power supply voltage. This idea is implemented using transistors and capacitors on silicon and is called a charge pump circuit. A charge pump circuit is implemented as a voltage doubler circuit in this work using 0.25um gate length technology. A 6-stage Dickson charge pump circuit was designed to produce a 15 V output from a 5 V supply using two phase non-overlapping clock signals that drive the charge pump. It also describes the advanced architectures with complex circuit design and dynamic techniques for …
A Planar Cavity Backed Slot Antenna Array For Ultra-Wideband Monopulse Radars, Vinay Magadi Vikram
A Planar Cavity Backed Slot Antenna Array For Ultra-Wideband Monopulse Radars, Vinay Magadi Vikram
Electrical Engineering Theses
In this thesis, a wideband cavity backed slot antenna is designed for automotive-borne monopulse radar applications. A rectangular slot is used to realize broad bandwidth; the slot is backed by a cavity and vertical walls of the cavity are implemented by discrete vias; and the slot is fed by an inverted microstrip line. The antenna in this letter is compact, robust, fully planar, and easy to integrate. A two-element array is fabricated and tested. Measured input impedance is matched to 50-ohm within band [2.61 GHz, 3.44 GHz] (27.5% bandwidth); and monopulse beam-scanning is successfully demonstrated.
Dispersion Engineering With Leaky-Mode Resonance Structures, Xin Wang
Dispersion Engineering With Leaky-Mode Resonance Structures, Xin Wang
Electrical Engineering Theses
In the thesis, a numerical method for the analysis of optical pulses propagation through leaky-mode/guided-mode resonance (GMR) structures is implemented by integrating a Fourier decomposition technique and the rigorous coupled-wave analysis (RCWA) method. Dispersion properties of several GMR structures such as single-grating-layer GMR filters, coupled GMR filters, and cascaded GMR filters are studied and their interaction with optical pulses investigated. For device applications, a high-Q transmission filter is formed by coupling GMR reflection filters which can withstand typical attenuation in silicon. Wavelength division multiplexing (WDM) filters are proposed by cascading a number of GMR transmission filters. Generally, a N channel …
A Tutorial On The Functionality On Core Network Mobility, Jatinder Jasbir Singh
A Tutorial On The Functionality On Core Network Mobility, Jatinder Jasbir Singh
Electrical Engineering Theses
Long Term Evolution (LTE) is next generation Mobile Broadband Technology, which promises to offer significantly higher data rates, better quality, and more economical. Many of the service providers are planning to offer this service by 2010-2012. LTE is vast change in the telecommunication industry from circuit switched network to packet switched network and now all IP-network. In the fast changing mobile telecommunications seamless handover is important for any technology to succeed. It is desirable and beneficial from operator as well as user perspective to have seamless handover with cost effectiveness, enhanced features, and location independence not only in the case …
Implementation And Performance Analysis Of 2-D Order 16 Integer Transforms In H.264/Avc And Avs-Video For High Definition Video Coding, Madhu Peringassery Krishnan
Implementation And Performance Analysis Of 2-D Order 16 Integer Transforms In H.264/Avc And Avs-Video For High Definition Video Coding, Madhu Peringassery Krishnan
Electrical Engineering Theses
H.264/AVC and AVS-video are two video coding standards that have a wide range of applications ranging from high-end professional camera and editing systems to low-end mobile applications. They strive to achieve maximum compression efficiency without compromising the quality of video. To this end many coding tools are defined in them. Transform coding is one among them. Transform coding represents the signal/image (that is currently in time/spatial domain) in another domain (transform domain), where most of the energy in signal/image is concentrated in a fewer number of coefficients. Thus the insignificant coefficients can be discarded after transform coding to achieve compression. …
Multiplexing Of Avs China Video With Aac Audio Bit Streams & De-Multiplexing With Lip Synchronization During Playback, Swaminathan Sridhar
Multiplexing Of Avs China Video With Aac Audio Bit Streams & De-Multiplexing With Lip Synchronization During Playback, Swaminathan Sridhar
Electrical Engineering Theses
AVS China is the latest digital video coding standard released by the AVS working group of China which has been proven superior to the other video coding standards such as H.261, MPEG-1 and MPEG-2 in terms of coding efficiency and reduced complexity. AVS standard employs the latest video coding tools which mainly target standard definition (SD) and high definition (HD) video compression and aim to achieve a similar coding efficiency of H.264/AVC but with reduced complexity. AVS video standard was developed in order to target broadcast and storage media applications such as digital video television, digital video disk (DVD and …
Real Time Location Tool For Precision Tracking Of Passive Uhf Rfid Tags In Two Dimensions, Nasir Kenarangui
Real Time Location Tool For Precision Tracking Of Passive Uhf Rfid Tags In Two Dimensions, Nasir Kenarangui
Electrical Engineering Theses
This thesis addresses this problem of a precise RTLS (Real Time Location System) by implementing a Passive UHF RFID system. A software is created that connects to an RFID reader and accesses it's functionality to collect the tag's backscatter power which is the RSSI (Received Signal Strength Indicator), and the tag's ID. The software also connects with a web camera, and locates the tags within the camera's point of view by using only the RSSI of the tag. This software is capable of computing the locations of tags by locking on each tag's unique EPC, and marking their location and …
Failure Assessment In Aerospace Systems Via Integrated Multi-Functional Sensors, Ismail Erkin Gonenli
Failure Assessment In Aerospace Systems Via Integrated Multi-Functional Sensors, Ismail Erkin Gonenli
Electrical Engineering Dissertations
Integrated sensors fabricated on flexible substrates show lots of promise due to their ability to conform on non-planar surfaces. Potential applications could be smart-skin and wearable electronics which can be used on prosthetic devices or in harsh environments to provide with the sense of feel of the ambient. Design, fabrication and characterization of MEMS piezoresistive pressure sensors and capacitive accelerometers were done on Si and flexible polymer substrates using surface micromachining to be used on aerospace applications. Devices were successfully tested on planar surfaces.For the pressure sensor fabrication, Si3N4 was used as a membrane material due to its linearity and …
Mems Piezoresistive Pressure Sensor On Flexible Substrates Using Nichrome And Cnt/Polyimide Nanocomposites Piezoresistors, Gaviraj Nadvi
Mems Piezoresistive Pressure Sensor On Flexible Substrates Using Nichrome And Cnt/Polyimide Nanocomposites Piezoresistors, Gaviraj Nadvi
Electrical Engineering Theses
Micro pressure sensors using nichrome as piezoresistor were fabricated on silicon and flexible substrates. The pressure sensors on flexible substrate can be used for prosthetic skin applications. The devices were successfully tested using different methods.Micromachined pressure/force sensors using nickel chromium piezoresistors have been investigated experimentally and through finite element mesh analysis. The pressure/force sensors were designed using a suspended aluminum oxide membrane with optimally placed piezoresistors to measure the strain in the membrane when deflected with an applied force or pressure. Different devices, each with varying size and shape of both the membrane and the piezoresistors were designed, fabricated, and …