Browsing Electrical Engineering by Issue Date
Now showing items 1-20 of 125
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A Design of Rake Receiver for the High Speed Downlink Packet Access (HSDPA) system in 3G Mobile Networks
(International University HCMC, Vietnam, 2009)This thesis addresses the problem of designing the receiver in high data rate systems. The case of multiple transmit antennas is also considered. Specific features of HSDPA system which are part of 3rd generation (3G) ... -
3D object recognition
(International University HCMC, Vietnam, 2009)This thesis implements a 3D object recognition system by using Matlab software to simulate two methods: Principal Component Analysis (PCA) and Artificial Neural Networks (ANN). One 3D object can be described with several ... -
Applying iterative demapping and decoding in Mimo system
(International University HCMC, Vietnam, 2009)In wireless communications nowadays, the use of MIMO (Multiple Input - Multiple Output) systems can improve the quality of received signals and capacity of channel to transmitting faster with fixed bandwidth ... -
Audio watermarking implemented in DSP KIT TMS320C5510
(International University HCMC, Vietnam, 2009)Digital audio watermarking is a technique developed to help in copyright protection of audio files. The research in this area has been spurred by the growth of the Internet, and the ease of copying audio material. This has ... -
A study on PAPR reduction method for OFDM systems
(International University HCMC, Vietnam, 2009)The Orthogonal Frequency Division Multiplexing (OFDM) has been used in many different wireless communication standards due to its many advantages. However, it has two major drawbacks, which are high peak-to-average power ... -
Embedded system for IP application
(International University HCMC, Vietnam, 2009)In this project, I have to learn and research the AVR control, internet protocol chip 28J60, and transfers data chip and 28j60 internet, standard interface chip 28j60 crabs and control. The research activities include ... -
An investigation on radiation characteristics of helical antennas
(International University HCMC, Vietnam, 2009)The Integral Equation (IE) method is used for analyzing the characteristics of the antenna based on the current distribution on the antenna. IE with the unknown of current distribution is solved by using numerical method ... -
Building voice over internet protocol system with asterisk
(International University HCMC, Vietnam, 2009)Voice over Internet Protocol (VoIP) is a revolutionary technology, which has become a key topic in both the growing Internet industry and established telecommunications industry. In VoIP technology telephone calls are ... -
Application of SDMA Technique for Cell-Replanning in Mobile Communication Systems
(International University HCMC, Vietnam, 2009)The thesis objectives are (1) to understand the essential knowledge of mobile communication systems, cell planning and re-planning processes, especially the SDMA technique for cell re-planning including LCMV ... -
Carrier Frequency Offset Estimation for OFDM Transmissions
(International University HCMC, Vietnam, 2009)FDMA, TDMA and CDMA are well known multiplexing techniques used in wireless communication systems. While working with the wireless systems using these techniques, various problems encountered are multi-path fading, ... -
Automatic number plate recognition system
(International University HCMC, Vietnam, 2009)This thesis implements an automatic license plate recognition system on Vietnamese vehicles which consist of three distinct stages: license plate localization in which we use Hough transform to detect borders of license ... -
Bayesian decision feedback equalizer
(International University HCMC, Vietnam, 2009)Bayesian is an elegant solution which is applied for digital communication channel equalization, especially decision feedback equalizer. This is an extension to the maximum a posteriori probability symbol-decision ... -
Channel assignment for multiradio wireless mesh networks
(International University HCMC, Vietnam, 2009)This thesis focuses on channel assignment problem which involves binding each radio to a channel in such a way that efficient utilization of available channels can be achieved. Some basic concepts of WMNs are introduced ... -
Exploiting iterative demapping and decoding for multiple access
(International University HCMC, Vietnam, 2009)We exploit the IDD for multiple access in this thesis and provide a variety of MATLAB software-based simulation results to demonstrate the advantage of the new multiple access technique over the conventional ones such ... -
Speech-to-text for Vietnamese language recognition with DSP & FPGA applications
(International University HCMC, Vietnam, 2009)This thesis investigates the use of two methods - Hidden Markov Model (HMM) and feed-forward multi-layer perceptrons trained by back-propagation - in Vietnamese speech-to-text recognition. Besides this, the thesis ... -
Research and Design Phase Shifter at High Frequency
(International University HCMC, Vietnam, 2009)In this thesis, new side-coupled Schiffman phase shifters about 482 MHz, 85 degree phase shift and 45 degree are studied. The phase shift results for FR-4 material (PCB material) used in the simulated models are very ... -
RFID Reader Design for 125 KHz and 13.56 MHz Applications
(International University HCMC, Vietnam, 2009)Deployment of radio frequency identification (RFID) system has been rapidly growing and has the potential to affect many different industries and application such as: tracking and identification, payment and stored value ... -
Home remote control and security system using SMS and telephone
(International University HCMC, Vietnam, 2009)In this thesis, I design a remote control of home security system with the SMS and telephone. The system consists of sensors such as: PIR sensor, smoke sensor, magnetic sensor, electric current sensor, etc for home security ... -
Speed controller design for the line following robot
(International University HCMC, Vietnam, 2009)Nowadays, automation is becoming the indispensable technology in the general development trend in the world. Many of countries apply new automatic technologies in many fields of life. Robots replace human works and more. ... -
Zigbee wireless application for RFID door security system
(International University HCMC, Vietnam, 2009)This thesis has three major purposes: (1) to establish a simple wireless sensor network using two ZigBee enabled devices; (2) to incorporate the mentioned result into a RFID security door; (3) to develop a computer program ...