Show: 25 50 75 100 Results

Search results: 25 out of 180

نظام التعرف على الوجه المستند الى نموذج ماركوف المخفي المعدل == Face Recognition System based on Modified Hidden Markov Model

Author name: حميد رسول فرحان
Supervisor name: محمود حمزة محمد | ثامر رشيد سعيد
Specific topic: Electronic Engineering
Degree: Master
Language: English
University location: Baghdad
First pages:

تحليل وتشخيص اشارات تخطيط قلب الانسان باستخدام تحويل المويجات == ECG Signal Analysis Using Wavelet Transform

Author name: حسام عبد الحسين وهاب
Supervisor name: هديل نصرت عبد الله
Specific topic: Electronic Engineering
Degree: Master
Language: English
University location: Baghdad
First pages:

تصميم وتنفيذ طرف صناعي علوي اعتمادا على اشارات الكلام واستجابة العضلة == Design and Implementation of a Prosthetic Hand Based on Speech & EMG Signals

Author name: جبار سلمان حسين
Supervisor name: علاء حسين علي | ثامر رشيد سعيد
Specific topic: Electronic Engineering
Degree: Doctorate
Language: English
University location: Baghdad
First pages:

تحسين اداء ليزر نقط الكم ذات انبعاث الحافة للاتصالات البصرية == Performance Improvement of Quantum - Dot Edge - Emitting Laser for Optical Communication

Author name: جاسم محمد صحن
Supervisor name: ثائرة زكريا الطيار | هادي طارش زبون
Specific topic: Electronic Engineering
Degree: Master
Language: English
University location: Baghdad
First pages:

تصميم وتنفيذ نظام التشخيص للصورة البيانية الكهربائية للقلب == Design and Implementation of Diagnostic ECG System

Author name: بسام حميد عبد
Supervisor name: محمود حمزة المفرجي | رائد خالد ابراهيم
Specific topic: Electronic Engineering
Degree: Master
Language: English
University location: Baghdad
First pages:

تقليل ضوضاء اشارة التحفيز العضلي وتنفيذها على ذراع الي باستخدام المسيطر الدقيق 8051 == Denoising EMG Signal and Its Implementation for a Robot Arm Using 8051 Microcontroller

Author name: انس فؤاد احمد
Supervisor name: اياد ابراهيم عباس | خالدة شعبان رجب
Specific topic: Electronic Engineering
Degree: Master
Language: English
University location: Baghdad
First pages:

تصميم وتنفيذ الشبكة العصبية الاصطناعية للروبوت المتحرك المستندة على البوابات المنطقية القابلة للبرمجة == Design and Implementation of Artificial Neural Network for Mobile Robot based on FPGA

Author name: امير حسين محمد
Supervisor name: امير حسين محمد
Specific topic: Electronic Engineering
Degree: Master
Language: English
University location: Baghdad
First pages:

تحسين اداء تتبع الاجسام فديويا == IMPROVEMENT THE PERFORMANCE OF VIDEO OBJECT TRACKING

Author name: اسيل حاتم كيطان
Supervisor name: ثامر رشيد سعيد
Specific topic: Electronic Engineering
Degree: Master
Language: English
University location: Baghdad
First pages:

تصميم وتنفيذ مرشحات الترددات العالية باستخدام رقاقة FPGA == High Pass FIR Filter Design and Implementation Using FPGA

Author name: اسعد حميد سهر
Supervisor name: منال حمادي جاسم
Specific topic: Electronic Engineering
Degree: Master
Language: English
University location: Baghdad
First pages:

شبكة استشعار ذكية داخلية لاول اوكسيد الكاربون مستندة الى اتصال فضاء حر ضوئي == Intelligent Indoor CO Sensor Network Based on FSO Communication

Author name: ازاد بدر سعید
Supervisor name: حنان عبد الرضا عكار | عاید خلف محمد
Specific topic: Electronic Engineering
Degree: Doctorate
Language: English
University location: Baghdad
First pages:

تصميم وتنفيذ مضمن متعدد النغمات باستخدام مصفوفة البوابات المنطقية المبرمجة == Design and Implementation of Discrete Multitone Modulator Using FPGA

Author name: اخلاص محمود فرحان
Supervisor name: هادي طارش زبون
Specific topic: Electronic Engineering
Degree: Master
Language: English
University location: Baghdad
First pages:

نظام السيطرة الذكي الاصطناعي المستند على تقنية الذراع الالي == Artificial Intelligent Control System Based on Robotic Arm Technology

Author name: احلام نجم عبد الامير
Supervisor name: حنان عبد الرضا عكار
Specific topic: Electronic Engineering
Degree: Doctorate
Language: English
University location: Baghdad
First pages:

نظام تشفير الصورة المستند على مصفوفة بوابات المجال المبرمجة باستخدام الانظمة الفوضوية == FPGA Based Image Encryption Using Chaotic Systems

Author name: اثير جبار منصور
Supervisor name: حكمت نجم عبد الله | هادي طارش زبون
Specific topic: Electronic Engineering
Degree: Doctorate
Language: English
University location: Baghdad
First pages:

شبكة كشف الاعطال الذكية لخلية الوقود الهيدروجينية ذات غشاء التبادل البروتوني بالاستفادة من مصفوفة البوابات المنطقية القابلة للبرمجة == Intelligent Fault Detection Network for Proton Exchange Membrane Fuel Cell Systems Utilizing FPGA

Author name: حسين محسن هادي
Supervisor name: عباس حسين عيسى
Specific topic: Electronic Engineering
Degree: Master
Language: English
University location: Baghdad
First pages:

سيطرة تفاوت الخطا لتوربينات الرياح المستدامة == Fault Tolerant Control Based Sustainable Wind Turbine

Author name: اسعد عبد الباري كريدي
Supervisor name: منتظر سامي شاكر
Specific topic: Electronic Engineering
Degree: Master
Language: English
University location: Baghdad
First pages:

كشف وعزل اعطال المتحسسات المستندة الى الذكاء الاصطناعي باستخدام خوارزمية افضلية الحشد الجزيئي == Fault Detection and Isolation SensorBased on Artificial Intelligent Using Particle Swarm Optimization

Author name: علي حسين مجيد
Supervisor name: عباس حسين عيسى
Specific topic: Electronic Engineering
Degree: Master
Language: English
University location: Baghdad
First pages:

تصميم مسيطر بالاعتماد على التمثيل المعكوس == Design Controller Based on an Inverse Identification

Author name: احمد شاكر عبد الله
Supervisor name: ميثاق نعمة رحيمه
Specific topic: Electronic Engineering
Degree: Master
Language: English
University location: Baghdad
First pages:

تصميم وتنفيذ مقياس طاقة ذات الدفع المسبق والمدعم بتقنية GSM == Design and Implementation of Prepaid Energy Meter Supported by GSM Network

Author name: مصطفى عبد العريس جبر
Supervisor name: اياد ابراهيم عباس
Specific topic: Electronic Engineering
Degree: Master
Language: English
University location: Baghdad
First pages:

تصميم وتنفيذ وتقييم الاداء لمنظومة الاتصالات البصرية اللاسلكية لنقل معدل البيانات العالية العاملة بتقنية RFoFSO - MIMO == Design, Implementation and Performance Evaluation for High Data Rate Wireless Optical Communication System by Using (RoFSO – MIMO

Author name: قناة مهدي عبد الحسين
Supervisor name: علاء حسين علي | شهاب كاظم احمد
Specific topic: Electronic Engineering
Degree: Doctorate
Language: English
University location: Baghdad
First pages:

تصميم وتنفيذ قناة المتكيفة لنظام الاتصالات المتنقلة باستخدام مصفوفة البوابات المنطقية المبرمجة == Design and Implementation of Adaptive Channel for M - ary Mobile Communication System Using FPGA

Author name: وسن سمير رشيد
Supervisor name: هادي طارش زبون
Specific topic: Electronic Engineering
Degree: Master
Language: English
University location: Baghdad
First pages:

الشبكات المتعلمة الرقمية متعددة الاصناف المحورة لاغراض فحص كريات الدم الحمراء == Modified Multi - Category Digital Learning Network For Red Blood Cell Inspection

Author name: سهاد قاسم غلام حسين حداد
Supervisor name: محمود حمزة المفرجي
Specific topic: Electronic Engineering
Degree: Master
Language: English
University location: Baghdad
Key words:
  • Pattern Recognition
  • RAM - based Weightless Neural Network
First pages:
Abstract: A pattern recognition system based on the n - tuple technique is developed and evaluated for use in classifying non - deterministic data with particular reference to medical image. The pattern recognition system presented in this work fulfills the requirements of simplicity and efficiency making it attractive to practical use in present day for industrial and medical environments. It is an effective solution for providing healthcare with reduced cost, especially for the rural areas and far away patients. Ordinary doctors (not specialist in blood diseases), will be able to perform extra - ordinary tasks.In this work Digital Learning Network has been designed for classification of different shapes of abnormal Red Blood Cells. Digital Learning Network is of low cost hardware and implementation, and one shot learning, using networks of RAMs. Many parameters have been investigated in details which affect the recognition rate. These parameters are presented to allow the system to be optimized, giving an increase in the performance of the system. Modification method of Feedback Digital Learning Network, which is an improving process of Digital Learning Network, has been implemented. The obtained results show that high performance (96.6%) can be achieved, providing evidence of the validity of the proposed technique.

التركيب السليكوني النانوي في الخلايا الشمسية == Nanostructured Silicon Based On Solar Cells

Author name: نور احمد سلمان
Supervisor name: ثائرة زكريا الطيار
Specific topic: Electronic Engineering
Degree: Master
Language: English
University location: Baghdad
First pages:
Abstract: تعتبر الخلايا الشمسية تكنولوجيا واعدة وقابلة للتجديد حيث ازداد الطلب عليها نتيجة لزيادة الاهتمام بالطاقة الكهروضوئية. ان التحسين المستمر لكفاءة الخلايا الشمسية بايجاد التقنيات والمفاهيم الجديدة يجب ان يمتد على نحو متزايد باعتبارها واحدة من اهم مصادر الط | The demand for solar cells has been growing rapidly with an increasing social interest in photovoltaic energy. The improvement of energy conversion efficiency of solar cells is performed by developing the technology and concepts that have been increasingly extended as one of the key components in our future global energy supplement. But, the main problem of photovoltaic modules are their rather high production and energy cost. Three generations of solar cell technologies have been established in the previous century.Nanostructured silicon substrates based on p - type crystalline Silicon (c - Si) have been prepared in this work. Electrochemical Etching (ECE) of the Silicon (Si) wafers in Hydrofluoric (HF) acid was employed to synthesize porous layers consisting of silicon nanostructures. The process was carried out at different etching time and different current densities which are considered as effective parameters in ECE process. It is found that a homogeneous porous layer could be obtained with porosity value of (87%) when the current density is (60 mA/ cm2) and the etching time of (10 min). Among the Transparent Conductive Oxide (TCO) materials available, Zinc Oxide (ZnO) films show promising electrical and optical properties in combination with low cost alternatives. It can function as Anti - Reflecting Coating (ARC), window material, transparent electrode and active layer in heterojunction solar cells. n - type ZnO thin films are grown on p - type nanostructured silicon substrates by using Pulsed Laser Deposition (PLD) technique with Q - switching Nd : YAG laser beam Second Harmonic Generation (SHG) [?=(532 nm), number of pulses (140) pulses, and laser energy (820 mJ)], vacuum of (10 - 3 Torr), ambient oxygen pressure of (10 - 1 Torr), and substrate temperature of (400 °C). The morphological, optical, chemical and structural properties were investigated using Atomic Force Microscopy (AFM), Ultraviolet - Visible (UV - VIS) spectroscopy, Fourier Transform Infrared (FTIR) spectroscopy, and X?Ray Diffraction (XRD) techniques, respectively.Surface morphology and optical properties results show densely packed highly crystalline growth of ZnO thin film on nanostructured silicon substrate grown at optimum condition with an average grain size around (88.57 nm). The average roughness, root mean square, and ten - point height estimated from AFM quantitative analysis, are found to be (3.02 nm), (3.62 nm), and (8.76nm) respectively. The thickness is calculated and found to be (100 nm). The film shows high transparency (above 80%) and the estimated Energy - gap (Eg) is found to be about (3.4 eV). This is important for its applications as transparent conductive films and solar cell windows. The chemical and structural properties results characterize ZnO at (420 cm - 1) and (766 cm - 1) absorption bands respectively and the thin film is polycrystalline with hexagonal Wurtzite structure.

تصميم وتنفيذ ذراع الي موجه عن طريق اشارة تخطيط العضلات باستخدام المتحكم الدقيق == Design And Implementation of A Robot Arm Driven By EMG Signal Based On Microcontroller Unit

Author name: انس عبد الحميد كاظم
Supervisor name: خالدة شعبان رجب
Specific topic: Electronic Engineering
Degree: Master
Language: English
University location: Baghdad
First pages:
Abstract: تعتبر اشارة (EMG) هي الاشارة المكتشفة على سطح الجلد فوق العضلة والمتولدة من مصدر المجال الكهريائي عند التقلص العضلي. الاشارة العضلية بصورة رئيسية في مجالين : تشخيص الخلل العضلي واشارة تحكم لسياقة ذراع الي، يستخدم الذراع الالي المساق بواسطة الاشارة العضلي | Electromyogram (EMG) is a signal detected on the skin above a muscle and generated by sources of electric field within the muscle during contraction. EMG signal is used mainly in two fields; Muscle disorder diagnostic and control signal for driving robotic arm. The robot arm driven by EMG is used as a remote control in hazard places or as prosthesis part for limbs of disabled. The first part presents placing array of EMG electrode on two muscles and measure the EMG signal, design acquisition circuit to optimize the EMG signal for two muscles; hardware circuit that designed will eliminate the noise resulting from cable, electrodes, 50Hz and aliasing. In order to monitor and record EMG signal, Data Acquisition System (DAQ) is designed for this purpose using Arduino platform, which gives the ability to deal with signal. The real time signal was taken from three persons with different weights and ages. The second part includes a proposed design of digital filter with windowing and applying to real time signal to compare the results for many times of orders and types of windowing in order to meet the best criteria. The FIR filter with 8th order will be chosen as digital filter with Hann windowing that is apply to eliminate the EMG noise that is caused from many sources and results optimum EMG signal that is used to control robot arm, implementing digital filter characteristic into dsPIC30F4013 which it signal processing microcontroller and using the filtered signal to control the robot arm by interfacing with DC driver to drive robotic arm with two degrees of freedom (2 - DOF). Also, this part includes the technique which simulates the results using MATLAB 2011a to control the movements of the robotic arm. Micro C for dsPIC© is used to write C code for FIR digital filter and loops with control algorithm to enable the controlling robot arm.

تصميم مضخمات قدرة راديوية التردد بتقنية CMOS مع محولات جامعة للقدرة == Design of RF Power Amplifiers With Power Combining Transformers

Author name: سهاد حسين جاسم
Supervisor name: احمد سعدون عز الدين
Specific topic: Electronic Engineering
Degree: Master
Language: English
University location: Baghdad
First pages:
Abstract: باستخدام تقنية CMOS، تواجه تكامل مضخمات القدرة العديد من التحديات بمستوى الواط والمستخدمة لتطبيقات الاتصالات اللاسلكية. وللتغلب على هذه المحددات، يمكن استخدام عدد من الوسائل واطئة الفولتية ودمجها بكفاءة باستخدام المحولات على الرقاقة لزيادة قدرة الخرج النا | In CMOS technology, many challenges face the integrated watt level power amplifiers (PAs) used in wireless applications. Consequently, to overcome these limits, several low voltage devices should be combined efficiently with on - chip transformers in order to increase the resulting output power. In this work, two high - performance Radio - Frequency (RF) power amplifiers for watt level applications are designed and simulated in deep submicron (0.13 µm) CMOS process technology using “Agilent Advanced Design System ADS 2011.10 with “BSIM4” as a simulation module for Metal - Oxide - Semiconductor Field - Effect Transistor (MOSFET) devices. The design includes a comparison for the conventional transformer combining techniques SCT, PCT and the hybrid type PSCT. The amplifiers incorporate a parallel combination of four differential PA cores to generate high output power with good efficiency and linearity. The first part of the work presents a design for a watt - level class - AB power amplifier based on transformer type power combiner PSCT for WLAN applications. The PA delivers an Output Power (Pout) of 30 dBm, Power Gain (Gp) of 30 dB and 40% Power Added Efficiency (PAE) under 2.5 V supply. In the second part of the work, a class - E PA based on transformer type power combiner PSCT is designed. The power amplifier provides an output power of 30 dBm, power gain of 30 dB, and 54% PAE at 2.45 GHz under 1.6 V supply. Finally, in the third part of this work, an on - chip output transformer layout for the proposed power amplifiers is designed and simulated with momentum RF EM simulator of ADS 2011.10 in order to realize a fully integrated power amplifier. The simulated efficiency of the PSCT was 78% with minimum insertion losses (ILmin) 0.87 dB.

تصميم متحكم ذكي لنظام تتبع شمسي بالاعتماد على مصفوفة البوابات الرقمية القابلة للبرمجة == Design of Intelligent Controller For Solar Tracking System Based On FPGA

Author name: ياسر محمد عبد
Supervisor name: حنان عبد الرضا عكار
Specific topic: Electronic Engineering
Degree: Master
Language: English
University location: Baghdad
First pages:
Abstract: ان الحاجة لزيادة توليد الطاقة الكهربائية جعل استخدام الخلايا الشمسية تلعب دورا هاما في الحياة اليومية، وعليه من المهم استخدام نظام يسمح بتتبع الخلايا الشمسية لضوء الشمس لزيادة او الحصول على القيمة المثلى للطاقة الكهربائية من الخلايا الشمسية. تم في هذا ا | The need to increase the energy generation makes the use of solar cells plays an important role in the daily life. For this reason, it is important to use solar tracking system to increase or getting almost optimum value from solar cells. In this thesis, solar cells model was implemented using MATLAB to show the characteristics of any solar cell depending on data sheet. Intelligent controllers was designed and used to make solar cells facing the sun all days. The proposed controller was trained by two ways; the first was trained by supervised feed forward neural network and the second by Particle Swarm Optimization (PSO) and then comparing the results obtained. The controller was trained using MATLAB and the converting it to simulink model in order to test it, and converts, it to a Very high speed integrated circuit Hardware Description Language (VHDL) language using MATLAB tool box in order to download it on Spartan 3A Field Programmable Gate Arrays (FPGAs) card. This makes the implementation of the intelligent controller more efficient and easy to use because of its reprogram - ability and the high speed performance. The controller was designed to a fully controlled DC motor driver which is used to rotate two DC motors in X - axis and Y - axis directions respectively.The experimental results show that tracking sun increases the efficiency of the system to produce energy from solar cell about 44.3778 % more energy than the solar cell without tracking system.
1 2 3 4 5 ... 8