40 10 8556 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Algerian Journal of Signals and Systems articles Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Chellali, Farouk Nourdine , Kabouche Recioui, Abdelmadjid Date A point or period of time associated with an event in the lifecycle of the resource 2021-06-30 Description An account of the resource Solar energy takes a prime place in the energetic transition towards renewable energies. Solar radiation data plays a major role in the expansion of this energy. However, the unavailability of these data due to the reduced number of meteorological stations has imposed the use of various solar radiation estimation and prediction models. Moreover, the geostrategic location of Algeria, its enormous area and its huge solar potential places it among the promising solar energy countries. The main objective of this part is to review the studies done upon estimation and assessment of solar radiation for Algerian sites. Different techniques are proposed including semi-empirical models, satellite imaging and solar maps. The study shows that semi-empirical models have been the most widely used due to the unavailability of solar data. Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context https://ajss.dz/index.php/ajss/article/view/133 10.51485/ajss.v6i2.133 Language A language of the resource eng Publisher An entity responsible for making the resource available Laboratory of Signals and Systems, Algeria Relation A related resource https://ajss.dz/index.php/ajss/article/view/133/115 Rights Information about rights held in and over the resource Copyright (c) 2021 Farouk Chellali, Nourdine Kabouche, Abdelmadjid Recioui https://creativecommons.org/licenses/by-nc/4.0 Source A related resource from which the described resource is derived Algerian Journal of Signals and Systems ; Vol. 6 No. 2 (2021): Vol.6 issue2; 75-97 2676-1548 2543-3792 10.51485/ajss.v6i2 Subject The topic of the resource Solar energy, solar radiation model, solar radiation estimation; solar map. Title A name given to the resource A Review on Solar Radiation Assessment and Forecasting in Algeria (Part 1: Solar Radiation Assessment) Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Algerian Journal of Signals and Systems articles Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource BENFRIHA, ELHASSEN Date A point or period of time associated with an event in the lifecycle of the resource 2021-09-30 Description An account of the resource This paper investigates the East-West station keeping strategy of geostationary satellites which must be performed to correct the drift caused by natural perturbation forces. The attitude control requirements as well as the pointing accuracy must be maintained during the station-keeping maneuver in order to assure the mission services. The propulsion system (chemical thrusters) is used to control both the orbit control (station keeping) and the attitude control where the ON/OFF thrusters pulses are managed using Bang-Bang controller with dead-band technique. Simulation results can clearly illustrate the feasibility and the effectiveness of the proposed control strategy. Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context https://ajss.dz/index.php/ajss/article/view/132 10.51485/ajss.v6i3.132 Language A language of the resource eng Publisher An entity responsible for making the resource available Laboratory of Signals and Systems, Algeria Relation A related resource https://ajss.dz/index.php/ajss/article/view/132/119 Rights Information about rights held in and over the resource Copyright (c) 2021 ELHASSEN BENFRIHA https://creativecommons.org/licenses/by-nc/4.0 Source A related resource from which the described resource is derived Algerian Journal of Signals and Systems ; Vol. 6 No. 3 (2021): AJSS; 163-168 2676-1548 2543-3792 10.51485/ajss.v6i3 Subject The topic of the resource Geostationary satellite Thruster attitude control Station keeping Bang-Bang Dead-band Title A name given to the resource Bang-Bang Attitude Control During East-West Station Keeping For Geostationary Satellite Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Algerian Journal of Signals and Systems articles Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource benmansour, jalal eddine khouane, boulanouare Date A point or period of time associated with an event in the lifecycle of the resource 2021-09-30 Description An account of the resource In this paper, a robust control scheme is proposed for flexible satellite attitude stabilization in the presence of multiple disturbances including the disturbances caused by flexible appendages with the sloshing dynamics of the liquid propellant and external disturbances from space environment. A composite control scheme is designed by combining a composite disturbance observer (CDO) with feed-forward controller. First, a CDO is constructed to estimate the lumped disturbances, where the lumped disturbances in the system are equivalent into two parts: a slow varying disturbance and periodic disturbance.  Then a PD controller is adopted to stabilize the system and restrain the residue disturbance. Finally, the simulation results for flexible satellite verify that the proposed method can make the satellite asymptotically stable and demonstrate the effectiveness of the proposed scheme. Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context https://ajss.dz/index.php/ajss/article/view/131 10.51485/ajss.v6i3.131 Language A language of the resource eng Publisher An entity responsible for making the resource available Laboratory of Signals and Systems, Algeria Relation A related resource https://ajss.dz/index.php/ajss/article/view/131/125 Rights Information about rights held in and over the resource Copyright (c) 2021 jalal eddine benmansour, boulanouare khouane https://creativecommons.org/licenses/by-nc/4.0 Source A related resource from which the described resource is derived Algerian Journal of Signals and Systems ; Vol. 6 No. 3 (2021): AJSS; 175-180 2676-1548 2543-3792 10.51485/ajss.v6i3 Subject The topic of the resource Composite Disturbance Observer Flexible satellite Attitude control Slosh Coupling dynamics Title A name given to the resource Attitude stabilization of slosh-coupled satellite with flexible appendage Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Algerian Journal of Signals and Systems articles Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource MBIHI DJOUMESSI, markov Date A point or period of time associated with an event in the lifecycle of the resource 2021-06-30 Description An account of the resource         This research paper presents a relevant contribution to optimal control of angular velocities with trajectories tracking for 2WD mobile robots. The dynamic model of each robotic servomechanisms is modelled from experimental data as a second order transfer function. Then, the direct and reverse kinematic equations are analytically developed. Then, the LQRT (Linear Quadratic Regulator with Tracking) gains for angular velocity of servomechanisms, are computed over infinite time horizon from corresponding Riccatti equations, using PSO (Particles Swarm Optimization) values of weighted matrix Q and R. Therefore, the LQRT solution computed from PSO of Q and R is known as LQRT-PSO. In addition, the LQRT-PSO gains computed from the related Riccati equations, are transformed into equivalent PID/LQRT-PSO gains for angular velocities control. Furthermore, a trajectory tracking flowchart is designed to reinforce the robustness of the overall control system.  On the other hand, relevant developments conducted in the design step, are organized into an overall Matlab/Simulink PID/LQRT-PSO scheme. Finally, the obtained simulation results are presented in order to show the high performance of the proposed PID/LQRT-PSO control scheme for 2WD mobile robots. Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context https://ajss.dz/index.php/ajss/article/view/130 10.51485/ajss.v6i2.130 Language A language of the resource eng Publisher An entity responsible for making the resource available Laboratory of Signals and Systems, Algeria Relation A related resource https://ajss.dz/index.php/ajss/article/view/130/116 Rights Information about rights held in and over the resource Copyright (c) 2021 markov MBIHI DJOUMESSI https://creativecommons.org/licenses/by-nc/4.0 Source A related resource from which the described resource is derived Algerian Journal of Signals and Systems ; Vol. 6 No. 2 (2021): Vol.6 issue2; 98-111 2676-1548 2543-3792 10.51485/ajss.v6i2 Subject The topic of the resource 2WD mobile robot, design PID/LQRT, PSO, PID/LQRT-PSO, trajectory tracking flowchart, virtual simulation Title A name given to the resource Design and Virtual Simulation of an Optimal PID/LQRT-PSO Control System for 2WD Mobile Robots Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Algerian Journal of Signals and Systems articles Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Boulouma, Sabri Labiod, Salim Boubertakh, Hamid Date A point or period of time associated with an event in the lifecycle of the resource 2021-06-30 Description An account of the resource In this paper, an adaptive fuzzy control scheme is developed for a class of uncertain multi-input multi-output (MIMO) nonlinear systems with uncertain actuator failures. Within this scheme, a fixed grouping of redundant actuators and a proportional actuation scheme for each group are considered. Afterward, a fuzzy system is used for the online approximation of a nominal control vector. The parameter adaptation laws for the nominal controller are driven by the prediction error, which is defined as the difference between the unknown nominal controller and the fuzzy controller. The proposed controller can compensate for both total and partial loss of effectiveness failure types. Closed-loop system stability and convergence properties of the tracking errors are proved based on Lyapunov theory. A piecewise analysis is carried out to prove that these properties hold despite the presence of parameter jumps caused by abrupt failures. A simulation study is carried out on a redundant joint two-link robot manipulator with joint failures at each link. Simulation results show the effectiveness of the proposed control scheme. Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context https://ajss.dz/index.php/ajss/article/view/128 10.51485/ajss.v6i2.128 Language A language of the resource eng Publisher An entity responsible for making the resource available Laboratory of Signals and Systems, Algeria Relation A related resource https://ajss.dz/index.php/ajss/article/view/128/117 Rights Information about rights held in and over the resource Copyright (c) 2021 Sabri Boulouma, Salim Labiod, Hamid Boubertakh https://creativecommons.org/licenses/by-nc/4.0 Source A related resource from which the described resource is derived Algerian Journal of Signals and Systems ; Vol. 6 No. 2 (2021): Vol.6 issue2; 112-121 2676-1548 2543-3792 10.51485/ajss.v6i2 Subject The topic of the resource Actuator failures, Fuzzy Systems, Adaptive Control, Lyapunov Stability, Redundant manipulator Title A name given to the resource Adaptive Fuzzy Actuator Failure Compensation Control for a Class of MIMO Nonlinear Systems Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Algerian Journal of Signals and Systems articles Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Messali, Zoubeida SAAD SAOUD, Salsabil LAMRECHE, Amira Date A point or period of time associated with an event in the lifecycle of the resource 2021-06-30 Description An account of the resource In this paper, the most sophisticated denoising algorithms of images and video are applied and implemented. More precisely, we study and implement the video denoising algorithms "VBM3D", "VBM4D", "DVDNet" and "FastDVDnet". Much attention is given to the latest DVDNet and FastDVDNet algorithms, which are based on CNN. We carry out a detailed quantitative and qualitative comparative study between the considered algorithms. Two assessments are adapted; the first is a qualitative comparison based on the qualityof the images / videos and the second is quantitative in terms of PSNR and running time criteria. To see the direct impact of our study on the current pandemic, and to show the importance of image and video preprocessing algorithms in the field of medical imaging; we apply the considered denoising algorithms based on CNN on our built COVID- 19 dataset and TEST_PCR videos. Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context https://ajss.dz/index.php/ajss/article/view/126 10.51485/ajss.v6i2.126 Language A language of the resource eng Publisher An entity responsible for making the resource available Laboratory of Signals and Systems, Algeria Relation A related resource https://ajss.dz/index.php/ajss/article/view/126/118 Rights Information about rights held in and over the resource Copyright (c) 2021 Zoubeida Messali, Salsabil SAAD SAOUD, Amira LAMRECHE https://creativecommons.org/licenses/by-nc/4.0 Source A related resource from which the described resource is derived Algerian Journal of Signals and Systems ; Vol. 6 No. 2 (2021): Vol.6 issue2; 122-129 2676-1548 2543-3792 10.51485/ajss.v6i2 Subject The topic of the resource Denoising, Deep learning, CNN, Covid-19, Gaussian noise, PSNR Title A name given to the resource Covid-19 Images and Video Denoising Algorithms Based on Convolutional Neural Network CNNs Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Algerian Journal of Signals and Systems articles Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Dominique, David Dominique, Faith Date A point or period of time associated with an event in the lifecycle of the resource 2021-03-31 Description An account of the resource An efficient partial sort algorithm that is less complex, and more practical to implement compared to existing partial sort algorithms especially for real time applications is presented. The proposed partial sort algorithm does not use pivots, but instead makes use of past sorting decisions to narrow the search for each new sorted element. A major advantage of the proposed partial sort algorithm is that its complexity and sorting time are fixed, and are not dependent upon the data to be sorted, unlike other algorithms. This makes it a good candidate for real time applications. Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context https://ajss.dz/index.php/ajss/article/view/125 10.51485/ajss.v6i1.125 Language A language of the resource eng Publisher An entity responsible for making the resource available Laboratory of Signals and Systems, Algeria Relation A related resource https://ajss.dz/index.php/ajss/article/view/125/110 Rights Information about rights held in and over the resource Copyright (c) 2021 David Dominique, Faith Dominique https://creativecommons.org/licenses/by-nc/4.0 Source A related resource from which the described resource is derived Algerian Journal of Signals and Systems ; Vol. 6 No. 1 (2021): Algerian Journal of Signals and Systems; 55-60 2676-1548 2543-3792 10.51485/ajss.v6i1 Title A name given to the resource An Efficient Partial Sort Algorithm for Real Time Applications Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Algerian Journal of Signals and Systems articles Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource mosbah, mustafa Bawazir, Raimon CETIN, Numan S. Arif, Salem sebaa, Karim Date A point or period of time associated with an event in the lifecycle of the resource 2021-03-31 Description An account of the resource The integration of clean or renewable sources such as wind turbines based distributed generation (WT_DG) into the power system has become one of the priorities of the grid operator. In this paper a study on the search for optimal locations and sizes of WT in the transmission network has been carried in order to maximize the lambda parameter and therefore the voltage stability, using Genetic Algorithms Technique (GAT). This method has been applied on the modified IEEE 30 bus network, with MATLAB code. The results demonstrated the effectiveness of wind turbine integration in improving the voltage stability of the studied network.     Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context https://ajss.dz/index.php/ajss/article/view/124 10.51485/ajss.v6i1.124 Language A language of the resource eng Publisher An entity responsible for making the resource available Laboratory of Signals and Systems, Algeria Relation A related resource https://ajss.dz/index.php/ajss/article/view/124/111 https://ajss.dz/index.php/ajss/article/view/124/113 Rights Information about rights held in and over the resource Copyright (c) 2021 mustafa mosbah, Raimon Bawazir, Numan S. CETIN, Salem Arif, Karim sebaa https://creativecommons.org/licenses/by-nc/4.0 Source A related resource from which the described resource is derived Algerian Journal of Signals and Systems ; Vol. 6 No. 1 (2021): Algerian Journal of Signals and Systems; 49-54 2676-1548 2543-3792 10.51485/ajss.v6i1 Subject The topic of the resource Power system, Voltage stability, Wind turbine Title A name given to the resource Voltage Stability Maximization by Optimal Wind Turbine Insertion Using Genetic Algorithm Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Algerian Journal of Signals and Systems articles Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource zidani, mohamed yazid Date A point or period of time associated with an event in the lifecycle of the resource 2021-09-30 Description An account of the resource The sliding mode control (SMC) methodology based on the theory of variable structure systems has been widely used for robust control of nonlinear systems. Nevertheless, this type of control has an essential inconvenience, which is the chattering phenomenon caused by the discontinuous control part. In order to reduce the effects of the chattering phenomenon, second order sliding mode (SOSM) seems to be a very attractive solution. To eliminate the remains of chattering phenomenon, a new control scheme based on fuzzy second order sliding mode control (FSOSMC) is proposed in this paper. This fuzzy second order sliding mode controller is destined to the speed control of doubly fed induction motor (DFIM) which is based on the decoupling control to enhance robustness under different operating conditions such as load torque and in the presence of parameters variation. The simulation results for various scenarios show the performances of the proposed control in terms of, precision, rapidity and stability for the high powers DFIM operating at variable speeds. Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context https://ajss.dz/index.php/ajss/article/view/123 10.51485/ajss.v6i3.123 Language A language of the resource eng Publisher An entity responsible for making the resource available Laboratory of Signals and Systems, Algeria Relation A related resource https://ajss.dz/index.php/ajss/article/view/123/124 Rights Information about rights held in and over the resource Copyright (c) 2021 mohamed yazid zidani https://creativecommons.org/licenses/by-nc/4.0 Source A related resource from which the described resource is derived Algerian Journal of Signals and Systems ; Vol. 6 No. 3 (2021): AJSS; 169-174 2676-1548 2543-3792 10.51485/ajss.v6i3 Subject The topic of the resource DFIM , Decoupling Control, SOSMC, FSOSMC. Title A name given to the resource Dynamic Performance Improvement of Doubly Fed Induction Motor Based on Hybrid Computational Technique and Variable Structure Control Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Algerian Journal of Signals and Systems articles Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource KATEB, Yousra MEGLOULI , Hocine KHEBLI, Abdelmalek Date A point or period of time associated with an event in the lifecycle of the resource 2020-12-15 Description An account of the resource Steel is the most important engineering and construction material in the world. It is used in all aspects of our lives. But as every metal is can be defected and then will not be useful by the consumer Steel surface inspection has seen an important attention in relation with industrial quality of products. In addition, it has been studied in different methods based on image classification in the most of time, but these can detect only such kind of defects in very limited conditions such as illumination, obvious contours, contrast and noise...etc. In this paper, we aim to try a new method to detect steel defects this last depend on artificial intelligence and artificial neural networks. We will discuss the automatic detection of steel surface defects using the convolutional neural network, which can classify the images in their specific classes. The steel we are going to use will be well-classified weather the conditions of imaging are not the same, and this is the advantage of the convolutional neural network in our work. The accuracy and the robustness of the results are so satisfying. Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context https://ajss.dz/index.php/ajss/article/view/122 10.51485/ajss.v5i4.122 Language A language of the resource eng Publisher An entity responsible for making the resource available Laboratory of Signals and Systems, Algeria Relation A related resource https://ajss.dz/index.php/ajss/article/view/122/104 Rights Information about rights held in and over the resource Copyright (c) 2020 Yousra KATEB, Hocine MEGLOULI , Abdelmalek KHEBLI https://creativecommons.org/licenses/by-nc/4.0 Source A related resource from which the described resource is derived Algerian Journal of Signals and Systems ; Vol. 5 No. 4 (2020); 203-208 2676-1548 2543-3792 10.51485/ajss.v5i4 Subject The topic of the resource Steel surface Defect detectioN Image classification Convolutional Neural Network ResNet-50 Title A name given to the resource Steel Surface Defect Detection Using Convolutional Neural Network Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article