تصفح Electrical Engineering حسب تاريخ النشر
السجلات المعروضة 61 -- 80 من 2555
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A new closed-loop converter for sinusoidal encoders - Preliminary results
( IEEE , 2009 , Conference Paper)Sinusoidal position transducers provide accurate and reliable representation of the mechanical position of their shafts. The sine/cosine transducers signals may be used in open loop or closed loop arrangements for the ... -
Development of a remote lab for electrical engineering program
( IEEE Computer Society , 2009 , Conference Paper)A remote lab for electrical engineering experiments has been designed and implemented. This has been intended as a platform that supports existing traditional labs by offering lab experiments that serve some of the student ... -
Comparison of relaying strategies for cooperative diversity systems with adaptive modulation
( IEEE , 2009 , Conference Paper)In this paper, we propose several relay selection schemes for cooperative diversity systems with adaptive transmission. The proposed schemes are based on dual-hop relaying with multiple relays. We analyze the performance ... -
Novel linearizer for tangent/cotangent converter
( IEEE , 2009 , Conference Paper)Resolvers and other types of sinusoidal encoders provide electrical signals whose amplitudes are related to the sine and cosine of the mechanical shaft angle ¿ over the full 360° range. The tangent/cotangent converter, ... -
Development of a remote lab for electrical engineering program
( IEEE Computer Society , 2009 , Conference Paper)A remote lab for electrical engineering experiments has been designed and implemented. This has been intended as a platform that supports existing traditional labs by offering lab experiments that serve some of the student ... -
Lifetime maximization with predictive power management in selective relay networks
( Institute of Electrical and Electronics Engineers Inc. , 2009 , Conference Paper)A diversity scheme which exploits the existence of a source-destination path to improve the lifetime and outage probability of a wireless selective relay network with Amplifyand-Forward (AF) relays is proposed and studied. ... -
Lifetime maximization for greedy selective relay strategies
(2009 , Conference Paper)In this paper we propose a new algorithm for selective relay strategies with Amplify-and-Forward (AF) relays which improves the relay network lifetime. The lifetime of the relay network is defined as the maximum number of ... -
A predictive strategy for lifetime maximization in selective relay networks
( IEEE , 2009 , Conference Paper)Two algorithms based on an energy conserving dynamic transmit power threshold are proposed for improving the lifetime in relay networks utilizing selective relay strategies with amplify-and-forward (AF) relays. the lifetime ... -
Chip-Level Modulated BPPM Fiber-Optic Code Division Multiple Access
( IEEE , 2009 , Conference Paper)Chip-Level Modulated Binary Pulse Position Modulation (CLM-BPPM) is proposed as a modulation scheme for Fiber-Optic Code Division Multiple Access (FO-CDMA) systems using Optical Orthogonal Code (OOC) for time domain signal ... -
Detecting Fetal Movements Using Non-Invasive Accelerometers: A Preliminary Analysis
( IEEE , 2010 , Article)Monitoring fetal movement is important to assess fetal health. Standard clinical fetal monitoring technologies include ultrasound imaging and cardiotocography. Both have limited prognostic value and require significant ... -
An active damping technique for a current source inverter employing a virtual negative inductance
(2010 , Conference Paper)A grid connected CSI requires a CL filter stage. In this work, the isolation transformer leakage inductance constitutes this filter inductance. This CL filter is lightly damped for efficiency constraints. Hence, it is ... -
Performance analysis of best relay selection scheme for fixed gain cooperative networks in non-identical Nakagami-m channels
( IEEE , 2010 , Conference Paper)Selecting the best relay among all the relays ready to cooperate saves system resources and utilizes the available bandwidth more efficiently compared to the regular all-relay cooperation. This scheme also achieves the ... -
R-wave detection: A comparative analysis of four methods using newborn piglet ECG
( IEEE , 2010 , Conference Paper)In the electrocardiograph (ECG), R-wave is the positive upward deflection in the QRS complex which represents the depolarization of both left and right ventricles. Accurate detection of the R-wave peaks in the ECG plays a ... -
Detection of neonatal seizure using multiple filters
( IEEE , 2010 , Conference Paper)It is often impossible to accurately differentiate between seizure and non-seizure related activities in irifants based on clinical manifestations alone. The electroencephalogram (EEG) is therefore the best tool available ... -
Capacitor voltage balancing using redundant states of space vector modulation for five-level diode clamped inverters
( IEEE , 2010 , Article)A redundancy balancing technique for the five-level diode-clamped inverter is presented, which balances the four dc-link capacitor voltages at high modulation index and high power factor. The technique is based on dividing ... -
Inverter-based versus synchronous-based distributed generation; Fault current limitation and protection issues
( IEEE , 2010 , Conference Paper)The contribution of distributed generation (DG) to network fault levels depends heavily on the technology employed. In the case of directly connected rotating machines the fault behavior is well established; with synchronous ... -
Real Time Digital Feedback Control for VFD fed by cascaded multi-cell inverter
( IEEE , 2010 , Conference Paper)Multi-cell inverter include an array of single-phase inverters capable of handling higher voltage ratings with lower rating power electronics devices. In this paper, a Real Time Digital Feedback Controller (RTDFBC) combined ... -
Estimation of highly selective channels for downlink LTE systemby a robust neural network
( Hamad bin Khalifa University Press (HBKU Press) , 2010 , Conference Paper)In this paper we propose a robust channel estimator for the downlink of a Long Term Evolution (LTE) system using a highly selective neural network. This method uses the information provided by the reference signals to ... -
Identifying crack parameters in slow rotating machinery using vibration measurements and hybrid neuro-particle swarm technique
(2010 , Conference Paper)Low-cycle fatigue-initiated cracks may result in failure in slow-rotating equipments. Online monitoring to identify such fault/crack parameters, namely crack size and crack location, would be critical in providing an early ... -
Investigation of inter feeder power flow regulator: Load sharing mode
(2010 , Article)The Inter feeder Power Flow Regulator (IFPFR) proposed in this paper consists of several voltage source inverters with common dc bus; each inverter is connected in series with one of different independent distribution ...