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تحسين الاداء في تشفيرالكتلة المكاني – الزماني على قنوات واصل متعدد بترددات مجزا بالتعامد-المتعددة الادخالات والمتعددة الاخراجات == Performance Enhancement of Space Time Block Coding Over MIMO-OFDM Channels

Author name: احمد غانم وداي
Supervisor name: Saod AbdulAziz Alseyab | Abdulkareem S. Abdullah
Degree: Doctorate
Language: English
University location: Basrah
First pages:

تصميم وتحليل هوائيات المرنان العازل الاسطواني ذو تغذية الفتحة المقترنة == Design and Analysis of Aperture - Coupled Cylindrical Dielectric Resonator Antennas

Author name: اسماء حميد مجيد القيسي
Supervisor name: Abdulkareem S. Abdullah
Degree: Doctorate
Language: English
University location: Basrah
First pages:

تقليل استهلاك القدرة في تصميم دوائر السيموس المتكاملة بالاعتماد على الخوارزمية الجينية == POWER MINIMIZATION IN CMOS INTEGRATED CIRCUITS DESIGN BASED ON GENETIC ALGORITHM

Author name: علي طويج شاهين
Supervisor name: سليم محمد رضا طه
Degree: Doctorate
University: University of Baghdad
Language: English
University location: Baghdad
First pages:

تصميم وتنفيذ منظومة تعقب شمسي مستقلة معتمدة على نظام تحديد المواقع العالمي == Design And Implementation of A GPS Based Stand - Alone Solar Tracking System

Author name: احمد جبار عبد
Supervisor name: Fawzi M. Al | Naima
Degree: Doctorate
University: University Of Basrah
Language: English
University location: Basrah
First pages:
Abstract: In a step to overcome the limitations of sensor based solar tracking system, a design tracking strategy, is presented in this thesis which is based on astronomical equations. This strategy takes two important factors into consideration. The first is finding the more accurate equations and figure out the ability of implementing such system which can deal with these complicated equations that are based mainly on trigonometric functions. The second is how to design and build a reliable, uninterrupted, accurate and global system that is able to calculate the local time, date and location in terms of longitude and latitude.This thesis aims to design and implement practically a global dual axis solar tracker that can process the data with high efficiency, able to solve these complicated equations, gather the required data from the GPS card, then save, and manage them inaccurate with tracking efficiency up to 99.33%, increases the power production by over 40%, reduce the drive power requirement 31%, reliable and uninterrupted with real time controller.The system also presents a design for a hybrid network for a solar tracking farm consisting of N - solar tracking systems. A main control unit is presented to manage all the trackers to the sun location in multi - tracking mode, diagnosis all the trackers for any faults and give complete information about the produced power from each of the solar tracking system. A new network protocol is designed to deal with the error control, congestion control and flow control for data transmission in the network.A complete solution for power - line communication modem has been proposed based on existing power line characteristics. This modem has advantages of simplicity, cost effectiveness and using new strategy to control the out of reach devices without increasing the transmitting power or changing the circuit specifications. The proposed design offers a simple solution to control the solar trackers in a vast solar farm, enabling to monitor the supplied power by each single tracker in the field and having the ability of fault diagnosis.

الاظهار المتكيف للاهداف المتحركة باستخدام معالجة الاشارة الرقمية في الزمن الحقيقي == Real Time Adaptive MTI Using DSP

Author name: محمود احمد محمود الزبيدي
Supervisor name: خليل حسن سيد مرعي | سعد داؤد سليمان الشماع
Degree: Doctorate
Language: English
University location: Mosul
First pages:

Optimization Schemes For Spectral Efficient 4G Mobile Networks

Author name: حيدر جواد محمد
Supervisor name: Saod Abdul Aziz Alseyab | Haider M. Alsabbagh
Degree: Doctorate
Language: English
University location: Basrah
First pages:

التقنيات المحسنة للبث الفديوي الرقمي الفضائي باستخدام تقسيم التردد المتعامد المتعدد == Improvement Techniques For Satellite Digital Video Broadcasting Using OFDM

Author name: بثينة موسى عمران
Supervisor name: S. N. Abdullah
Degree: Doctorate
University: University of Baghdad
Language: English
University location: Baghdad
First pages:

موجة شبكات طرفي فعال بالاعتماد على نظام وندوز == Windows - Based Active Edge Router

Author name: عمر علي عذاب
Supervisor name: Sufyan T. Faraj
Degree: Doctorate
University: University of Baghdad
Language: English
University location: Baghdad
First pages:

Neuro - Genetic Based Switching Controller for Optimal PWM Inverters

Author name: Faiz Abbas Mohammed Al-Alawy
Supervisor name: Abbas F. Abdul-Kader | Jasim M. Ali
Degree: Doctorate
Language: English
University location: Baghdad
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