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Algerian Journal of Signals and Systems最新文献

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High Precision Roll/Yaw Attitude Stabilization for Flexible communication satellite 柔性通信卫星的高精度滚转/偏航姿态稳定
Algerian Journal of Signals and Systems Pub Date : 2018-06-15 DOI: 10.51485/ajss.v3i2.62
J. E. Benmansour, K. K. K. Khouane, R. R. R. Rima
{"title":"High Precision Roll/Yaw Attitude Stabilization for Flexible communication satellite","authors":"J. E. Benmansour, K. K. K. Khouane, R. R. R. Rima","doi":"10.51485/ajss.v3i2.62","DOIUrl":"https://doi.org/10.51485/ajss.v3i2.62","url":null,"abstract":"The aim of this paper is to realize high-precision attitude stabilization for roll/yaw axes of flexible communication satellite while attenuate the effects of the elastic vibrations and multiple disturbances such as solar radiation and model uncertainties. a composite control has been designed which is comprise two part an anti-disturbance proportional-derivative (PD) controller is designed to stabilize the attitude while rejecting the effects of flexible vibrations, environmental disturbances, and unmodelled dynamics, whose are assumed as an extended state. This controller comprises two parts, i.e. an extended state observer and a PD controller with feedforward. First, flexible vibrations, environmental disturbances and unmodelled dynamics are regarded as an extended state, which can be estimated by the proposed observer. The estimated extended state can be compensated by feedforward where the attitude can be stabilized by the PD controller. Numerical simulation results are presented to demonstrate the effectiveness of the control scheme.","PeriodicalId":153848,"journal":{"name":"Algerian Journal of Signals and Systems","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124943831","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Humanoid Robot, What is missing? 人形机器人，缺少什么?
Algerian Journal of Signals and Systems Pub Date : 2018-06-01 DOI: 10.51485/ajss.v3i2.63
Hadjira Belaidi, H. Bentarzi
{"title":"Humanoid Robot, What is missing?","authors":"Hadjira Belaidi, H. Bentarzi","doi":"10.51485/ajss.v3i2.63","DOIUrl":"https://doi.org/10.51485/ajss.v3i2.63","url":null,"abstract":"A humanoid robot is now a reality, which has been very developed. It can do almost all tasks that either the human can do or not as well as the dangerous tasks. The researchers recently develop robots, which can see, smell, smile, speak, touch, walk and talk using the more advanced technological tools such as computer aided design. However, these humanoid robots cannot react as human, so what is missing?, what is about the spirit? Does robot have the spirit? This paper answers these questions and presents imperfection of humanoid robot.","PeriodicalId":153848,"journal":{"name":"Algerian Journal of Signals and Systems","volume":"133 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114361472","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
PMU Optimal Placement in Wide Area Monitoring Systems using Grey Wolf Optimization technique 基于灰狼优化技术的广域监控系统PMU优化配置
Algerian Journal of Signals and Systems Pub Date : 1900-01-01 DOI: 10.51485/ajss.v4i1.76
Y. Azzougui, A. Recioui, A. Mansouri
{"title":"PMU Optimal Placement in Wide Area Monitoring Systems using Grey Wolf Optimization technique","authors":"Y. Azzougui, A. Recioui, A. Mansouri","doi":"10.51485/ajss.v4i1.76","DOIUrl":"https://doi.org/10.51485/ajss.v4i1.76","url":null,"abstract":"Wide area monitoring system requires the integration of an advanced technology that provides real time synchronized phase angle measurements at all their measurement points. The phasor measurement units are the most advanced devices to achieve that. The objective of this work is first, to find the optimal placement of a minimum number of PMUs in some standardized IEEE systems. Next, the same method was applied to the Algerian 63 bus system. Two cases are taken into consideration: the minimum number of PMUs without considering the ZIB, then, considering the ZIB. The simulations are carried out using MATLAB/SIMULINK.","PeriodicalId":153848,"journal":{"name":"Algerian Journal of Signals and Systems","volume":"118 32","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120827451","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
Application of the Unit Circle Representation to Pattern Synthesis of Nonuniformly Spaced and Nonuniformly Excited Arrays based on the Teaching Learning Based Optimization 基于教与学优化的单位圆表示在非均匀间隔非均匀激励阵列方向图合成中的应用
Algerian Journal of Signals and Systems Pub Date : 1900-01-01 DOI: 10.51485/ajss.v4i1.77
A. Recioui
{"title":"Application of the Unit Circle Representation to Pattern Synthesis of Nonuniformly Spaced and Nonuniformly Excited Arrays based on the Teaching Learning Based Optimization","authors":"A. Recioui","doi":"10.51485/ajss.v4i1.77","DOIUrl":"https://doi.org/10.51485/ajss.v4i1.77","url":null,"abstract":"Pattern synthesis of Antenna array has gained much attention over the last years as they constitute an important role in the modern communication systems. Unit circle-based techniques such as Schelkunoff null placement method have proved their effectiveness to synthesize uniformly spaced linear arrays. Nonuniformly spaced antenna array pattern synthesis has been investigated and interesting results have been obtained. In this work, the unit circle representation approach is applied to synthesize nonuniformly spaced and nonuniformly excited linear arrays. The objective is to accurately place nulls in the desired directions while achieving the least possible sidelobe level. The problem is cast as an optimization problem that is solved using the Teaching Learning Based Optimization (TLBO). Examples are dealt with to prove the design approach effectiveness and flexibility for modern communication system applications.","PeriodicalId":153848,"journal":{"name":"Algerian Journal of Signals and Systems","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130310214","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
BTLBO Based SPMUs Placement Optimization for Fault Observation in Power Grid 基于BTLBO的电网故障观测spmu布局优化
Algerian Journal of Signals and Systems Pub Date : 1900-01-01 DOI: 10.51485/ajss.v4i1.78
A. Zitouni, H. Bentarzi
{"title":"BTLBO Based SPMUs Placement Optimization for Fault Observation in Power Grid","authors":"A. Zitouni, H. Bentarzi","doi":"10.51485/ajss.v4i1.78","DOIUrl":"https://doi.org/10.51485/ajss.v4i1.78","url":null,"abstract":"The placement of synchro-phasor measurement units in electric transmission systems has also gained much attention for enhancing the control as well as the protection scheme. In this research work, a binary teaching learning based optimization (BTLBO) algorithm for the optimal placement of synchro-phasor measurement units (SPMUs) is proposed. The optimal PMU placement problem is formulated to minimize the number of SPMUs installation subject to full network observability of the power system buses under fault conditions. The effectiveness of the proposed method is verified by the simulation of IEEE 14-bus benchmark system.","PeriodicalId":153848,"journal":{"name":"Algerian Journal of Signals and Systems","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125633100","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
PMU Optimal Placement for Fault Detection in Wide Area Monitoring Systems based on the Drone Squadron Optimization 基于无人机中队优化的广域监控系统PMU故障检测优化配置
Algerian Journal of Signals and Systems Pub Date : 1900-01-01 DOI: 10.51485/ajss.v4i1.79
F. Z. Dekhandji, Y. Azzougui, A. Recioui
{"title":"PMU Optimal Placement for Fault Detection in Wide Area Monitoring Systems based on the Drone Squadron Optimization","authors":"F. Z. Dekhandji, Y. Azzougui, A. Recioui","doi":"10.51485/ajss.v4i1.79","DOIUrl":"https://doi.org/10.51485/ajss.v4i1.79","url":null,"abstract":"Wide area monitoring systems require the integration of new technologies that provide real time synchronized phase angle measurements. The Phasor measurement units (PMUs) are the most advanced devices to achieve this task so far. The objective of this work is to find the minimum number and optimal placement of PMUs in some standardized IEEE systems. The relatively new drone squadron optimization (DSO) technique is used to solve this problem. Next, fault location is studied based on the measurements collected from these PMUs. The simulations are carried out using MATLAB SIMULINK. The results show that it is possible to achieve the observability of the overall system; however, more PMUs are needed to locate the faults.","PeriodicalId":153848,"journal":{"name":"Algerian Journal of Signals and Systems","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115880888","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
Elliptic and Concentric-Elliptic Antenna Array Design using Grey Wolf Optimization 椭圆和同心椭圆天线阵的灰狼优化设计
Algerian Journal of Signals and Systems Pub Date : 1900-01-01 DOI: 10.51485/ajss.v4i1.80
A. Recioui, Oussama Traikia, Youcef Grainat
{"title":"Elliptic and Concentric-Elliptic Antenna Array Design using Grey Wolf Optimization","authors":"A. Recioui, Oussama Traikia, Youcef Grainat","doi":"10.51485/ajss.v4i1.80","DOIUrl":"https://doi.org/10.51485/ajss.v4i1.80","url":null,"abstract":"In this work, Grey Wolf Optimization (GWO) is applied to the optimization of elliptical and concentric elliptical antenna arrays. The objective is to minimize the Sidelobe level and improve the directivity. GWO is a nature-inspired meta-heuristic algorithm inspired by the social hierarchy and hunting behavior of grey wolves. The obtained optimal values result in a good reduction of the sidelobe level for the elliptical and concentric elliptical antenna arrays with an enhancement in the directivity. This makes the designed arrays of practical use in the communication systems.","PeriodicalId":153848,"journal":{"name":"Algerian Journal of Signals and Systems","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128044412","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
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