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var str = 'Design of high throughput 2.7 Tbps DWDM System under MIMO-FSO Channel as Back-up Optical Link for 5G Networks';
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]]>
FSO]]>
MIMO]]>
DWDM]]>
EDFA]]>
BER]]>
Q-Factor]]>
OSNR]]>
The present article aims to investigate and evaluate the performances of DWDM (or Dense Wavelength Division Multiplexed) system under MIMO-FSO (or multiple input multiple output-free space optical) channel. However, the proposed system is configured and simulated in the worst-case meteorological conditions, and we base here on the variation of the attenuation coefficient. In this article, the proposed system is devoted to 90 users, every user exploits 30 Gbps. So, the total capacity of system is 90x30 Gbps. In addition, the use of MIMO technique in FSO channel ensures us the stability of the proposed system in the worst-case meteorological conditions and especially when the system exploits a high throughput. To assess the acceptable performance levels of the proposed system, it is necessary to use the following criteria: the minimum bit error rate (or BER) performance, the maximum quality factor (or Q-Factor) and the optical signal to noise ratio (or OSNR) performance. Finally, the proposed system in this paper provides a promising solution for 5G networks as back-up optical link.]]>
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var str = 'Adardour, Haroun Errachid';
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]]>
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var str = 'KAMECHE , Samir';
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]]>
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var str = 'HADJILA , Mourad';
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]]>
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var str = 'IRID , Sidi Mohammed Hadj';
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]]>
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var str = 'HACHEMI , Mohammed Hicham';
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]]>
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var str = 'KOURDI , Zakarya';
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]]>
Algerian Journal of Signals and Systems ; Vol. 6 No. 1 (2021): Algerian Journal of Signals and Systems; 1-15]]>
2676-1548]]>
2543-3792]]>
10.51485/ajss.v6i1]]>
Laboratory of Signals and Systems, Algeria]]>
2021-03-31]]>
Copyright (c) 2021 Haroun Errachid Adardour, Samir KAMECHE , Mourad HADJILA , Sidi Mohammed Hadj IRID , Mohammed Hicham HACHEMI , Zakarya KOURDI]]>
https://creativecommons.org/licenses/by-nc/4.0]]>
https://ajss.dz/index.php/ajss/article/view/1/106]]>
application/pdf]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
Peer-reviewed Article]]>
https://ajss.dz/index.php/ajss/article/view/1]]>
10.51485/ajss.v6i1.1]]>
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var str = 'Evaluation of Hot Carrier Impact on Lateral-DMOS with LOCOS feature';
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]]>
LDMOS]]>
Hot Carrier Stress]]>
LOCOS]]>
Flicker noise]]>
Hot carrier stress is evaluated on a laterally diffused MOSFET (LDMOS) by TCAD simulation. The device under test is obtained from process simulation under a 1µm CMOS flow available at CDTA. The n-type transistor uses the LOCOS (local oxidation of silicon) and single RESURF (reduced surface field) features. Using the trap degradation model, degradation over time and different biases, the shift of threshold voltage VTH, ON-state resistance RON, saturation current IDsat, and device lifetime are extracted. The shifts were found to be manageable, they have a single process mechanism and are due to hot electrons in our case. But, flicker noise assessment under the same stress shows noticeable instabilities.]]>
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var str = 'HOUADEF, Ali';
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]]>
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var str = 'DJEZZAR, Boualem';
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]]>
Algerian Journal of Signals and Systems ; Vol. 6 No. 1 (2021): Algerian Journal of Signals and Systems; 16-23]]>
2676-1548]]>
2543-3792]]>
10.51485/ajss.v6i1]]>
Laboratory of Signals and Systems, Algeria]]>
2021-03-31]]>
Copyright (c) 2021 Ali HOUADEF, Boualem DJEZZAR]]>
https://creativecommons.org/licenses/by-nc/4.0]]>
https://ajss.dz/index.php/ajss/article/view/2/105]]>
application/pdf]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
Peer-reviewed Article]]>
https://ajss.dz/index.php/ajss/article/view/2]]>
10.51485/ajss.v6i1.2]]>
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var str = 'NBTI Fast Electrical Characterization in pMOSFET Devices';
document.write(linkifyHtml(str, options));
]]>
MOSFET reliability]]>
NBTI]]>
I_ds-V_gs fast characterization]]>
MSM method]]>
extraction methods]]>
To measure the entire characteristic of p-MOSFET, we have implemented the fast Ids-Vgs technique. The latter is used to study NBTI phenomenon with measure-stress-measure method, for electric field 5MV/cm < Eox < 7.5MV/cm, and temperatures 27°C < Ts < 120°C. Measurement time has reached 10 us, and a stress-measure delay (switching time) of about a hundred of milliseconds was obtained. However, strengths and weaknesses of the implemented technique have been discussed. Furthermore, the extraction methods: transconductance (Gm), subthreshold slope (SS), and mid-gap (MG), have been implemented and discussed as well. NBTI parameter i.e. Delta Vth, n, gamma and Ea were extracted and compared to other results. A time exponent n of 0.149 has been touched. Activation energy Ea = 0.039 eV and a field factor gamma = 0.41 MV/cm for a stress time ts < 10 s have been obtained.]]>
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var str = 'MESSAOUD, DhiaElhak';
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]]>
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var str = 'Djezzar, Boualem';
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]]>
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var str = 'Benabdelmoumene, Abdelmadjid';
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]]>
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var str = 'Boubaaya, Mohamed';
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]]>
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var str = 'Zatout, Boumediene';
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]]>
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var str = 'Zitouni, Abdelkader';
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]]>
Algerian Journal of Signals and Systems ; Vol. 6 No. 1 (2021): Algerian Journal of Signals and Systems; 24-31]]>
2676-1548]]>
2543-3792]]>
10.51485/ajss.v6i1]]>
Laboratory of Signals and Systems, Algeria]]>
2021-03-31]]>
Copyright (c) 2021 DhiaElhak MESSAOUD, Boualem Djezzar, Abdelmadjid Benabdelmoumene, Mohamed Boubaaya, Boumediene Zatout, Abdelkader Zitouni]]>
https://creativecommons.org/licenses/by-nc/4.0]]>
https://ajss.dz/index.php/ajss/article/view/3/109]]>
application/pdf]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
Peer-reviewed Article]]>
https://ajss.dz/index.php/ajss/article/view/3]]>
10.51485/ajss.v6i1.3]]>
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}
};
var str = 'Development of Instrumentation Adapted by C.M.M.S. Dedicate to Poly-articulated Mechanisms: (Computer-assisted Maintenance Management System)';
document.write(linkifyHtml(str, options));
]]>
Synthesis of mechanisms,Measurement and Instrumentation, CAD Prototype.]]>
Abstract: In this article three study phases have been discussed: Landing phase of a civil transport aircraft,when part of the flow entering the reactors is redirected by thrust reversers. Phase of the functional andtechnical study of which reflects on the aircraft maintenance component, without forgetting the phase ofsynthesis of the landing system mechanisms. The approach presented relates to the description of thedifferent instruments and languages used for the control of vibratory behavior in a maintenance plan. Activedevices are used mainly in systems where the excitation acts permanently on the system and the minimizationof the amplitude of the vibrations is the dominant criterion. This is the reason why it is important to plan andcontrol the technical aspect which will contain the landing system from the point of view of geometry, torques,positions, speeds and accelerations, and trajectories from the mechanism design phase.Keywords: Synthesis of mechanisms, Measurement and Instrumentation, CAD Prototype
]]>
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};
var str = 'BENMISRA, ABDELKADER';
document.write(linkifyHtml(str, options));
]]>
var options = {
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};
var str = 'BELAIDI, Hadjira';
document.write(linkifyHtml(str, options));
]]>
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var str = 'BELAIDI, Abderahmane';
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]]>
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};
var str = 'BRAHIMI, Abdelhalim';
document.write(linkifyHtml(str, options));
]]>
var options = {
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var str = 'IRKI, Moufida';
document.write(linkifyHtml(str, options));
]]>
Algerian Journal of Signals and Systems ; Vol. 6 No. 1 (2021): Algerian Journal of Signals and Systems; 61-66]]>
2676-1548]]>
2543-3792]]>
10.51485/ajss.v6i1]]>
Laboratory of Signals and Systems, Algeria]]>
2021-03-31]]>
Copyright (c) 2021 ABDELKADER BENMISRA, Hadjira BELAIDI, Abderahmane BELAIDI, Abdelhalim BRAHIMI, Moufida IRKI]]>
https://creativecommons.org/licenses/by-nc/4.0]]>
https://ajss.dz/index.php/ajss/article/view/4/112]]>
application/pdf]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
Peer-reviewed Article]]>
https://ajss.dz/index.php/ajss/article/view/4]]>
10.51485/ajss.v6i1.4]]>
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};
var str = 'Hydraulic Model of a Lifting and Handling Manipulator';
document.write(linkifyHtml(str, options));
]]>
Keywords: CAD modification, trajectories, Pick & Place (Signals input-output).]]>
Abstract: This publication concerns hydraulic robots used in flexible production lines, in fact in hydraulicsystems, energy is transmitted and controlled by means of a pressurized fluid circulating in a circuit. whichform a new series of applications pick & place (Patents: N° 9507799623622 AL 1996088,9622856 AL19960801, 9620818 AL 19960711. . .). Circuit diagrams are an aid facilitating the understanding, study anddescription of production cells. The new, very simple structure of the hydraulic robot is a novelty in Algeria andhas been adapted to the data of a production line made up of seven production lines. In order to avoid anyconfusion and error during development, production, installation and maintenance and in order to transformthis production line into a flexible cell, it appears essential that these diagrams be linked to a standardizedrepresentation.Keywords: CAD modification, trajectories, Pick & Place (Signals input-output).]]>
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var str = 'BENMISRA, ABDELKADER';
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]]>
var options = {
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var str = 'BELAIDI, Abderahmane';
document.write(linkifyHtml(str, options));
]]>
var options = {
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var str = 'BELAIDI, Hadjira';
document.write(linkifyHtml(str, options));
]]>
var options = {
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var str = 'BRAHIMI, Abdelhalim';
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]]>
var options = {
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var str = 'IRKI, Moufida';
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]]>
Algerian Journal of Signals and Systems ; Vol. 6 No. 2 (2021): Vol.6 issue2; 67-74]]>
2676-1548]]>
2543-3792]]>
10.51485/ajss.v6i2]]>
Laboratory of Signals and Systems, Algeria]]>
2021-06-30]]>
Copyright (c) 2021 ABDELKADER BENMISRA, ABDERAHMANE , HADJIRA, ABDELHALIM, MOUFIDA]]>
https://creativecommons.org/licenses/by-nc/4.0]]>
https://ajss.dz/index.php/ajss/article/view/5/114]]>
application/pdf]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
Peer-reviewed Article]]>
https://ajss.dz/index.php/ajss/article/view/5]]>
10.51485/ajss.v6i2.5]]>
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var str = 'Voltage Sensorless Direct Power Control for PWM Rectifier Under Distorted Network Using Improved Virtual Flux Estimator';
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]]>
PWM-Rectifier]]>
Direct power control (DPC)]]>
Space vector modulation (SVM)]]>
Virtual flux (VF)]]>
Second-order generalized integrator (SOGI)]]>
Generally, AC-DC conversion system in the power system use the diode-bridge based rectifiers that cannot be reversible and causes high current distortion. Besides, they reduce the power factor and energy quality. recently, the application of three-phase pulse width modulation (PWM) rectifier has been risen quickly due to breakthrough advancement in the power devices. This converter offers sinusoidal input currents and minimized harmonic distortion and unity power factor. This work presents an improved sensorless control for performance enhancement purpose of the PWM-rectifier. The proposed control strategy uses the virtual flux principle with second-order generalized integrator (SOGI) in order to overcome the accompanying drawbacks of using pure integrator of low-pass filters for estimation. The integration of improved virtual flux estimator with direct power control saves the cost of using many voltage sensors which can increase the reliability and effectivity of the control system. Moreover, it improves control robustness and against highly distorted network. The different proposed approaches have been investigated through simulation using MATLAB/Simulink software.]]>
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var str = 'DJABALI , Sarah';
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]]>
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var str = 'AIT HAMOU ALI, Melissa';
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]]>
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var str = 'AMMAR, Abdelkarim';
document.write(linkifyHtml(str, options));
]]>
Algerian Journal of Signals and Systems ; Vol. 6 No. 1 (2021): Algerian Journal of Signals and Systems; 32-40]]>
2676-1548]]>
2543-3792]]>
10.51485/ajss.v6i1]]>
Laboratory of Signals and Systems, Algeria]]>
2021-03-31]]>
Copyright (c) 2021 Sarah DJABALI , Melissa AIT HAMOU ALI, Abdelkarim AMMAR]]>
https://creativecommons.org/licenses/by-nc/4.0]]>
https://ajss.dz/index.php/ajss/article/view/6/107]]>
application/pdf]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
Peer-reviewed Article]]>
https://ajss.dz/index.php/ajss/article/view/6]]>
10.51485/ajss.v6i1.6]]>
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var str = 'Rotor Fault Detection in Squirrel Cage Induction Motors using MCSA and DWT Techniques';
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]]>
Broken rotor bar faults]]>
Discrete wavelet transform]]>
Motor current signature analysis]]>
This article presents the fault detection of broken rotor bar (BRB) faults in squirrel cage induction motors (SCIMs). This work applied two diagnostic methods on stator current signal. It is necessary to verify the machine health to avoid any catastrophic damage. The first method uses the fast Fourier transform (FFT) which is generally called motor current signature analysis (MCSA). We carefully verified the spectral content of the stator current to detect BRB fault. The new harmonics allows us to take a good decision about BRB fault. The second method is based on the discrete wavelet transform (DWT). This technique is widely used in the diagnosis field of rotating machinery. According to DWT method, we used the mean square error (MSE) as a good indicator. An experimental test with different conditions of the induction motor has been performed. The experimental results have been exploited using MCSA and DWT methods to achieve a good decision.]]>
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};
var str = 'BESSOUS, Noureddine';
document.write(linkifyHtml(str, options));
]]>
var options = {
attributes: {
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var str = 'SBAA, Salim';
document.write(linkifyHtml(str, options));
]]>
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var str = 'PUSCA, Remus';
document.write(linkifyHtml(str, options));
]]>
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var str = 'ROMARY, Raphaël';
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Algerian Journal of Signals and Systems ; Vol. 6 No. 1 (2021): Algerian Journal of Signals and Systems; 41-48]]>
2676-1548]]>
2543-3792]]>
10.51485/ajss.v6i1]]>
Laboratory of Signals and Systems, Algeria]]>
2021-03-31]]>
Copyright (c) 2021 Noureddine BESSOUS, Salim SBAA, Remus PUSCA, Raphaël ROMARY]]>
https://creativecommons.org/licenses/by-nc/4.0]]>
https://ajss.dz/index.php/ajss/article/view/7/108]]>
application/pdf]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
Peer-reviewed Article]]>
https://ajss.dz/index.php/ajss/article/view/7]]>
10.51485/ajss.v6i1.7]]>
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var str = 'Digital Control Fuzzy Logic for a Water Tank Level Using Arduino';
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Fuzzy logic control has been successfully utilized in various industrial applications; it is generally used in complex control systems, such as chemical process control. Today, most of fuzzy logic controls are still implemented on expensive high performance processors. This paper analyzes the effectiveness of a fuzzy logic control using a low cost controller applied to water level control system. The paper also gives a low cost hardware solution and practical procedure for system identification and control. We started, first by identifying the process to obtain its mathematical model. Then we used two methods to control our system (PI and fuzzy control). Simulation and experimental results are presented.]]>
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var str = 'CHABNI, Fayçal';
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var str = 'TALEB, Rachid';
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var str = 'BENBOUALI, Abderrahmen';
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var str = 'BOUTHIBA, Mohammed Amin';
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Algerian Journal of Signals and Systems ; Vol. 1 No. 1 (2016); 2-10]]>
2676-1548]]>
2543-3792]]>
10.51485/ajss.v1i1]]>
Laboratory of Signals and Systems, Algeria]]>
2016-06-15]]>
Copyright (c) 2016 Fayçal CHABNI, Rachid TALEB, Abderrahmen BENBOUALI, Mohammed Amin BOUTHIBA]]>
https://creativecommons.org/licenses/by-nc/4.0]]>
https://ajss.dz/index.php/ajss/article/view/12/1]]>
application/pdf]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
Peer-reviewed Article]]>
https://ajss.dz/index.php/ajss/article/view/12]]>
10.51485/ajss.v1i1.12]]>
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var str = 'Fault Tolerant Control of Induction Motor Drives Subject to Rotor Resistance Adaptation';
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Adaptive observer]]>
fault tolerant control]]>
induction machine]]>
vector control]]>
This paper describes the synthesis of a vector fault tolerant control of induction motor drives using an adaptive observer. This observer is used to detect the rotor resistance and flux components using the stator terminal voltages and currents. The rotor resistance is adapted using a new algorithm which does not imply a high computational load. Stability analysis based on Lyapunov theory is performed in order to guarantee the closed loop stability. The rotor resistance is used for the correction of the controllers and the rotor time constant. To verify the tolerance and the applicability of this control, we consider the stator inter-turn fault which is frequently encountered in practice. An analytical method for the modelling of this fault is presented. The equations which describe the transient as well as steady state behavior of unsymmetrical induction machine including the computation of machine inductances are presented. These inductances are calculated analytically using the magnetic field distribution through the machine air-gap. Simulation results are provided to evaluate the consistency and performance of the proposed fault tolerant control of induction motor based vector control.]]>
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var str = 'Boumalha, N.';
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var str = 'Kouchih, D.';
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var str = 'Tadjine, M.';
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var str = 'Boucherit, M.S.';
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Algerian Journal of Signals and Systems ; Vol. 1 No. 1 (2016); 11-22]]>
2676-1548]]>
2543-3792]]>
10.51485/ajss.v1i1]]>
Laboratory of Signals and Systems, Algeria]]>
2016-06-15]]>
Copyright (c) 2016 N. Boumalha, D. Kouchih, M. Tadjine, M.S. Boucherit]]>
https://creativecommons.org/licenses/by-nc/4.0]]>
https://ajss.dz/index.php/ajss/article/view/13/2]]>
application/pdf]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
Peer-reviewed Article]]>
https://ajss.dz/index.php/ajss/article/view/13]]>
10.51485/ajss.v1i1.13]]>
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var str = 'Sensitivity Enhancement of Methane Detection Based On Hollow Core Photonic Crystal Fiber';
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photonic crystal fiber]]>
methane]]>
finite element method]]>
rsoft cad]]>
Monitoring methane (CH4) concentration is essential in many industrial and environmental applications. Emission of such gases is indeed important to detect for health, safety and environmental reasons. The major risk in all these areas is an explosion hazard, which may occur if methane reaches its Lower Explosive Limit (LEL) of5% concentration in air. For that reason, it is necessary to develop gas sensors to monitor that methane levels below this value. Due to a weak absorption of methane, this gas is difficult to detect using conventional methods.Hollow core photonic crystal fibers (HC-PBF) have emerged as a promising technology in the field of gas sensing. The strong interaction achievable with these fibers are especially advantageous for the detection of weakly absorbing regions of methane. In this paper, we investigated, by full vectorial finite element method (FV-FEM) in Rsoft CAD environment, the dependency of relative sensitivity on the fiber parameters and wavelength. Consequently, we introduced the optimal structureof an index guiding hollow core photonic crystal fiber capable of measuring methane concentrations down to 0.1%in air. The simulations showed that the sensing sensitivity increased with an increase in the core diameter and a decrease in the distance between centers of two adjacent holes.]]>
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var str = 'Boufenar, R.';
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var str = 'Bouamar, M.';
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var str = 'Hocini, A.';
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Algerian Journal of Signals and Systems ; Vol. 1 No. 1 (2016); 23-29]]>
2676-1548]]>
2543-3792]]>
10.51485/ajss.v1i1]]>
Laboratory of Signals and Systems, Algeria]]>
2016-06-15]]>
Copyright (c) 2016 R. Boufenar, M. Bouamar, A. Hocini]]>
https://creativecommons.org/licenses/by-nc/4.0]]>
https://ajss.dz/index.php/ajss/article/view/15/3]]>
application/pdf]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
Peer-reviewed Article]]>
https://ajss.dz/index.php/ajss/article/view/15]]>
10.51485/ajss.v1i1.15]]>