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Article
RESPONSE ENHANCEMENT OF DC MOTOR USING EVOLUTIONARY INTELLIGENT FRACTIONAL-ORDER PID CONTROLLER

Author: Nasser Ali Hasson Al-Zubaydi
Journal: Al-Qadisiyah Journal for Engineering Sciences مجلة القادسية للعلوم الهندسية ISSN: 19984456 Year: 2017 Volume: 10 Issue: 4 Pages: 591-599
Publisher: Al-Qadisiyah University جامعة القادسية

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Abstract

An effective intelligent controller is suggested by mixing the Fractional-Order PID (FOPID) and fast genetic algorithms (FGAs) to improve the output response of DC motor. This controller is named as FGA-FOPID controller, the classical FOPID controllers have numerous benefits in practical implementation of many systems such as DC motor control compared with classical PID controllers, where the output response of the DC motor with FOPID or with classical PID is reasonable, but it’s not satisfaysthe response enhancements. So FGAs is used to slove the problem and to improve the overall output. The suggested work is confirmed by DC motor control system, and then compared with the classical PID and FOPID controllers. The simulated results establish that, the suggested work is adeptness from previous work.


Article
Enhancement of Twins Fetal ECG Signal Extraction Based on Hybrid Blind Extraction Techniques

Authors: Ahmed Kareem Abdullah --- Hadi Adab Hamad --- Nasser Ali Hasson AL-Zubaydi
Journal: Journal of University of Babylon مجلة جامعة بابل ISSN: 19920652 23128135 Year: 2017 Volume: 25 Issue: 4 Pages: 1127-113
Publisher: Babylon University جامعة بابل

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Abstract

ECG machines are noninvasive system used to measure the heartbeat signal. It’s very important to monitor the fetus ECG signals during pregnancy to check the heat activity and to detect any problem early before born, therefore the monitoring of ECG signals have clinical significance and importance. For multi-fetal pregnancy case the classical filtering algorithms are not sufficient to separate the ECG signals between mother and fetal. In this paper the mixture consists of mixing from three ECG signals, the first signal is the mother ECG (M-ECG) signal, second signal the Fetal-1 ECG (F1-ECG), and third signal is the Fetal-2 ECG (F2-ECG), these signals are extracted based on modified blind source extraction (BSE) techniques. The proposed work based on hybridization between two BSE techniques to ensure that the extracted signals separated well. The results demonstrate that the proposed work very efficiently to extract the useful ECG signals.

جهاز تخطيط القلب هو جهاز غير جراحي يستخدم لقياس الاشارات الناتجه من القلب من الضروري مراقبة قلب الاجنه التوائم خلال عملية الحمل لتشخيص كفائة القلب والكشف المبكر عن اي مشكله قبل الولاده, في حالات الحمل المتعدد تقنيه استخدام الفلاتر غير كافيه في فصل اشارات قلب الاجنه عن اشرات قلب الام , في هذا البحث مزيج اشاره القلب المتكون من ثلاث اشارات ناتجه من الجنين الاول والجنين الثاني وقلب الام استخلصت عن طريق تقنيه الفصل العمياء المعدله. حيث ان هذه التقنية تعتمد على خوارزميتن دمجت سويه للحصول على افصل عمليه فصل بين الاشارات . بينت النتائج ان العمل المقترح هو جيد وكفؤء في استخلاص اشارات القلب .

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