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تحليل اداء المضخم-الكاشف لاشباه الموصلات الضوئية == Performance Analysis of Semiconductor Optical Amplifier Photodetector

Author name: حيدر ياسر ناصر
Supervisor name: رعد سامي فياض | جاسم محمد عبد الجبار
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Electrical Engineering
Degree: Higher Diploma
University: University Of Basrah - College Of Engineering
Language: English
University location: Basrah
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متحكم السيطرة المنزلقة لمغير رافع الفولتية باستخدام تقنية تضمين عرض النبضة == Sliding Mode Controller for a Boost Converter Using Pulse Width Modulation Technique

Author name: اسماء جواد كاظم الحجاج
Supervisor name: Haroutuon A. Hairik | Ramzy A. Abdul-Halem
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Electrical Engineering
Degree: Master
University: University Of Basrah - College Of Engineering
Language: English
University location: Basrah
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دراسة حول مغيرات التيار المستمر الى تيار متناوب وكيفية تحسين معامل القدرة فيها == DC To AC INVERTER AND POWER FACTOR CORRECTION

Author name: مرتضى محبس رسن الفياضي
Supervisor name: Ali F. Marhoon
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Electrical Engineering
Degree: Higher Diploma
University: University Of Basrah - College Of Engineering
Language: English
University location: Basrah
First pages:

الهوائيات حزمية الطور المسيطر عليها ضوئيا == Optically Controlled Phased-Array Antennas

Author name: علاء عبد الحسين طه العيدان
Supervisor name: Jassim M. Abdul-Jabbar | Raad S. Fyath
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Electrical Engineering
Degree: Master
University: University Of Basrah - College Of Engineering
Language: English
University location: Basrah
First pages:

التوجيه في شبكات الحاسبات مع السيطرة على الاكتظاظ باعتماد الشبكات العصبية المويجية == WAVENET-BASED COMPUTER NETWORK ROUTING WITH CONGESTION CONTROL

Author name: عباس عبد الامير جاسم
Supervisor name: Jassim M. Abdul-Jabbar | Majid A. Alwan
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Electrical Engineering
Degree: Doctorate
University: University Of Basrah - College Of Engineering
Language: English
University location: Basrah
First pages:

حماية منظومة القدرة الكهربائية باستخدام شبكة بتري العصبية المضببة == Power System Protection Using Fuzzy Neural Petri Net

Author name: احمد ثامر راضي
Supervisor name: Abduladhem A. Ali | Abbas H. Abbas
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Electrical Engineering
Degree: Doctorate
University: University Of Basrah - College Of Engineering
Language: English
University location: Basrah
First pages:

نمذجة وتحليل منظومات القدرة الكهربائية الحثية اللاتلامسية بطريقة العنصر المحدد == Finite element modeling and analysis OF Contactless Inductive Power Transmission Systems

Author name: عبد الجبار فاضل علي حسن
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Electrical Engineering
Degree: Doctorate
University: University Of Basrah - College Of Engineering
Language: English
University location: Basrah
First pages:

التفاضلية للمحولات الثلاثية الطور باستخدام تحويلة ربطة المويجة == DIFFERENTIAL PROTECTION OF THREE PHASE TRANSFORMERS BASED ON WAVELET THEORY

Author name: وعد نوري طابور السعد
Supervisor name: Adel A. Obed |Majid A. Alwan
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Electrical Engineering
Degree: Master
University: University Of Basrah - College Of Engineering
Language: English
University location: Basrah
First pages:

السيطرة المتزامنة على الموقع لمحركي ممانعة مغناطيسية خطيين == Synchronized Position Control of Dual-Linear Reluctance Motor Drive

Author name: خاد مهدي عبد الحسن
Supervisor name: Rabee'. H. Thejel | Haroutuon. A. Hairik
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Electrical Engineering
Degree: Doctorate
University: University Of Basrah - College Of Engineering
Language: English
University location: Basrah
First pages:

تصميم وتنفيذ متابع شمسي لمنظومة قدرة فوتوفولتائية == DESIGN AND IMPLEMENTATION OF SUN TRACKER FOR PHOTOVOLTAIC POWER SYSTEM

Author name: حيدر محمد داود
Supervisor name: جواد راضي
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Electrical Engineering
Degree: Master
University: University Of Basrah - College Of Engineering
Language: English
University location: Basrah
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التحكم الضبابي بمعالجات الروبوت المقيد == FUZZY CONTROL OF CONSTRAINED ROBOT MANIPULATOR

Author name: لؤي علي طالب
Supervisor name: تركي يونس عبد الله
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Electrical Engineering
Degree: Master
University: University Of Basrah - College Of Engineering
Language: English
University location: Basrah
First pages:

السيطرة المتكيفة باستخدام الشبكات العصبية والشبكات العصبية المضببة

Author name: غيث عبد المجيد سلمان
Supervisor name: تركي يونس عبد الله
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Electrical Engineering
Degree: Master
University: University Of Basrah - College Of Engineering
Language: English
University location: Basrah
First pages:

دراسة شاملة عن التحكم ا?تجاهي للمحرك الحثي الخطي == COMPREHENSIVE STUDY ON VECTOR CONTROL OF LINEAR INDUCTION MOTOR

Author name: محمد حميد حسن المرفظ
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Electrical Engineering
Degree: Master
University: University Of Basrah - College Of Engineering
Language: English
University location: Basrah
First pages:

الشبكة العصبية الضوئية ذات البعد الاحادي والثنائي == ONE- and TWO -DIMENSIONAL OPTICAL NEURAL NETWORKS

Author name: علي كامل مرزوق الهلالي
Supervisor name: Raad. S. Fyath |Jassim. M. Abdul-jabbar
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Electrical Engineering
Degree: Master
University: University Of Basrah - College Of Engineering
Language: English
University location: Basrah
First pages:

تحليل الاداء لنظام OSCM/WDM == Some Performance Analysis for Optical Subcarrier Multiplexing/Wavelength Division Multiplexing (SCM/WDM) System

Author name: حسنين محمد مهدي
Supervisor name: Abdul-Jabbar |R. S. Fyath
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Electrical Engineering
Degree: Master
University: University Of Basrah - College Of Engineering
Language: English
University location: Basrah
First pages:

تحسين اداء مغير القدرة المتناوبة الى القدرة المستمرة باستخدام السيطرة الضبابية == AC/DC Converter Performance Improvement using Fuzzy Controller

Author name: سومر صاحب حردان
Supervisor name: رمزي سالم علي | ربيع هاشم ثجيل
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Electrical Engineering
Degree: Master
University: University Of Basrah - College Of Engineering
Language: English
University location: Basrah
First pages:

التحكم بذراع الروبوت باستخدام الشبكات العصبية المضببة

Author name: جلال نزار عبد الباقي
Supervisor name: عبد العظيم عبد الكريم علي
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Electrical Engineering
Degree: Master
University: University Of Basrah - College Of Engineering
Language: English
University location: Basrah
First pages:

دراسة عن منظومة التدوير المكونة من محرك حثي مغذى بمغير تضمين عرض النبضة == Study on Voltage (PWM) Inverter fed Induction Motor Drive

Author name: حيدر خليل ابراهيم الطاهري
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Electrical Engineering
Degree: Master
University: University Of Basrah - College Of Engineering
Language: English
University location: Basrah
First pages:

تصميم وتطبيق النظام الالي لمراقبة الجودة == DESIGN AND IMPLEMENTION OF AUTOMATING QUALITY CONTROL SYSTEM

Author name: فاروق تحسين طه
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Electrical Engineering
Degree: Master
University: University Of Basrah - College Of Engineering
Language: English
University location: Basrah
First pages:

تقنية جديدة مقترحة لكبح المحركات الحثية ثلاثية الطور بطريقة عكس التيار == NEW PROPOSED PLUGGING TECHNIQUE FOR BRAKING THREE-PHASE INDUCTION MOTORS

Author name: وسام اياد كاظم
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Electrical Engineering
Degree: Master
University: University Of Basrah - College Of Engineering
Language: English
University location: Basrah
First pages:

تمييز الحروف العربية المعزولة المكتوبة بخط اليد باستخدام الشبكات العصبية == Recognition Of Isolated Handwritten Arabic Letters Using Neural Networks

Author name: نهلة ظاهر حبيب بهية
Supervisor name: منذر نعمان التكريتي
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Electrical Engineering
Degree: Master
University: Mustansiriyah University - College Of Engineering - Department Of Electrical Engineering
Language: English
University location: Baghdad
First pages:
Abstract: يتناول هذا البحث مشكلة تمييز الحروف العربية المعزولة المكتوبة بخط اليد باستخدام الشبكات العصبية. ان نظام تمييز الحروف العربية المقترح يتكون من ثلاث مراحل وهي : مرحلة مسح صور الحروف العربية ثم مرحلة معالجة الصور واخيرا مرحلة التدريب والتصنيف.ان المرحلة الاخ | This thesis presents an algorithm for recognition of an off - line isolated handwritten Arabic letters using neural networks.The handwritten recognition system present in this work consists of three modules : - 1 - Arabic letter scanning module 2 - Arabic letter preprocessing module 3 - Learning and recognition module.The proposed neural network in the third module is trained in two stages : The first stage employs Self - Organizing Map learning algorithm for clustering the input pattern, which are based on a database of 196 letters collected from 7 independent persons.In the second stage each of the similar output cluster is considered as a subnet introduced to neural network trained by Back - propagation learning algorithm for classification. Several networks architecture are designed in the second stage using 1 - hidden and 2 - hidden layers with 5 and 28 output nodes in the output layer with different number of hidden nodes and learning rate.To examine the efficiency of the system a database of 196 letters collected from other 7 independent persons are used, (in order to test the ability of the trained network to generalize). The results show that clustering the input pattern, using 1 - hidden layer and 28 nodes in output layer improve the network performance. The system was implemented using (IBM - PC) of type Pentium 3.The programming language used to design the system was c++ version 5.02.

استراتيجية السيطرة على المقوم ثلاثي الاطوار المضمن بعرض النبضة (PWM) نوع رافع للجهد ولمصدر تغذية متغير الحالات

Author name: منتظر كاظم عبد الله
Supervisor name: تركي كحيوش حسن
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Electrical Engineering
Degree: Master
University: Mustansiriyah University - College Of Engineering - Department Of Electrical Engineering
Language: English
University location: Baghdad
First pages:
Abstract: In this thesis, a proposed control strategy is presented to improve the performance of the PWM boost type rectifier when operating under different supply voltage conditions (balanced, unbalanced, and distorted three - phase supply voltages). The proposed control strategy is classified into two parts, the first part is voltage controller and the second part is current controller. In the voltage controller, Repetitive Controller (RC) is used to reduce the even order harmonics in the regulated output dc voltage (5.62V (P.P.)) so small output capacitor (480µF) is used instead of large capacitor (920µF) that is used with the conventional controller (PI controller connected in series with a LPF). RC also reduces the even order harmonics (0.014A (P.P)) which appears in the reflected dc current (IMAX), this leads to reduce the odd order harmonics (0.01A) which appears in the input currents. While in the current controller, enhanced Phase Locked Loop (EPLL) technique is used to obtain sinusoidal and balanced three phases, to construct the reference currents, which are in phase with the fundamental supply voltages Therefore, the supply - side power factor is kept close to unity (0.9036 for extremely distorting case). As a result the calculations of the reference currents in the proposed control strategy does not require Clarke or Park transformations, the same for the calculations of the positive or negative sequence components. A proportional controller is used to give excellent tracking between the line and the reference currents. Using this approach makes the control strategy easy to understand and also it saves calculation time of the control algorithms if implements in real time. The complete system with the proposed control strategy is simulated using Matlab/Simulink (Version 2012). The obtained results for the complete system using repetitive voltage controller are compared to the results of the system with using the conventional voltage controller. The results with the repetitive controller show better responses and stable operation in the steady state under different input voltage conditions, as well as in the transient response under different disturbances.

تحقيق دائرة المعدل الثابت للانذار الكاذب باستعمال منظومة البوابات المنطقية المبرمجة موقعيا == Modified GO - CFAR Implementaion Using FPGA

Author name: مصطفى صبحي كمال
Supervisor name: رفعت طالب حسين | حكمت نجم عبد الله
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Electrical Engineering
Degree: Master
University: Mustansiriyah University - College Of Engineering - Department Of Electrical Engineering
Language: English
University location: Baghdad
First pages:
Abstract: هذه الاطروحة تتعلق بتحليل ومعالجة تاثير الضوضاء المحيطية (Clutter) لمنظومة الرادار النبضي، يتطلب رادار الكشف الالي للهدف استعمال عتبة الية (Adaptive threshold) لتحقيق معدل ثابت للانذار الكاذب وذلك لغرض السيطرة على الانذار الكاذب الذي تسببه تغيرات في الضوض | This thesis deals with the analysis and processing of clutter for pulsed radar system. Automatic target detection radar requires adaptive thresholding achieved by Constant False Alarm Rate (CFAR) circuit in order to control the false alarm caused by variations in clutter background.This work focus on worst radar environment that happens when abrupt variation in clutter background merged with multi - interfering target, to detect target in such environments it need robust CFAR algorithm that excise the target spikes and clutter edges from CFAR window in order to give best possible estimation to the noise background. two important algorithms studied which are CA - CFAR and OS - CFAR algorithms in additional to the modified CA - CFAR algorithm. All these algorithms were simulated with mat lab v6.1 and applied them to three different clutter models that represent different environment cases the CA - CFAR family failed to handle model two and three also OS - CFAR family except OSGO - CFAR that handle all models successfully. For modified CA - CFAR family only modified GO - CFAR handle all models successfully and comparing with OSGO - CFAR the modified GO - CFAR need less hardware and processing time because it did not need sorting process that is essential for OSGO - CFAR. Therefore, the modified GO - CFAR is chosen to implement by using FPGA and another important feature in modified GO - CFAR algorithm that is parallel processing since the spike selection process is done at the same time with summing of samples process that make this algorithm much less in processing time from any other algorithm that work in the same environment. The FPGA chip that used to implement modified GO - CFAR algorithm need only three signals from the radar receiver to mach with the receiver circuit correctly which are time base clock signal period reset trigger signal and the pulse duration time. Therefore, the FPGA chip can work effectively with almost any radar receiver system

تحليل الاشارات المشفرة ثنائيا باستخدام الترشيح الموائم وغير الموائم لتقليل الفصوص الجانبية == Analysis Of Binary - Coded Signals Using Matched And Mismatched Filtering For Sidelobe Reduction

Author name: صلاح حسن عباس
Supervisor name: اسماعيل محمد جابر
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Electrical Engineering
Degree: Master
University: Mustansiriyah University - College Of Engineering - Department Of Electrical Engineering
Language: English
University location: Baghdad
First pages:
Abstract: Various types of binary phase - coded signals are studied in terms of their correlation properties. Then, matched filtering technique as well as mismatched filtering techniques is applied to the codes studied previously in order to reduce the sidelobes of the compressed binary phase - coded signal around the mainlobe, and consequently increase the detection of the received signal. Each filtering technique is performed using programs written by the programming language of MATLAB version 7.4.0.287 (R2007a). White Gaussian noise is introduced in the assessment made to both the filtering techniques and the codes that are adopted in this thesis.The MATLAB programs are tested on various types of binary phase codes that are adopted in this thesis to calculate the criteria to choose the best filtering technique. These criteria are peak sidelobe level, the integrated sidelobe level, and the signal - to - noise ratio loss. Later, the results, which are obtained according to these mentioned criteria, are used to test different filtering techniques on the chosen periodical and aperiodical binary phase codes to choose the best one.It is found that, the optimal peak sidelobe level (PSL) filtering technique is the best filtering technique for the aperiodical binary phase codes in terms of the peak sidelobe level, and in terms of an acceptable signal - to - noise ratio loss. The optimal integrated sidelobe level (ISL) filtering technique comes in the second place.While, it is found that, the mismatched filtering technique is the best filtering technique for the periodical binary phase codes in terms of an acceptable signal - to - noise ratio loss.

نظام الاخفاء الصوري المعتمد على تحويل المويجة والاشارات الفوضوية

Author name: سرى فهمي يوسف
Supervisor name: حكمت نجم عبد الله
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Electrical Engineering
Degree: Master
University: Mustansiriyah University - College Of Engineering - Department Of Electrical Engineering
Language: English
University location: Baghdad
First pages:
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