Pub Date : 2020-02-20DOI: 10.1504/ijscc.2020.10024427
Wesam M. Jasim, Dongbing Gu
In this work, a leader-follower formation control problem of quadrotors is investigated. The quadrotor dynamic model is represented by unit quaternion with the consideration of external disturbance. Nonlinear H∞ design approach is introduced and robust controllers for both leader and follower robots are derived by solving a Hamilton-Jacobi inequality following from a result for general nonlinear affine systems. Then some robustness conditions of the proposed controllers are obtained by selecting appropriate parametrised Lyapunov functions. The resultant state feedback controllers establish the asymptotically stability of the closed-loop nonlinear system. In addition, integral backstepping (IB) controllers are also derived for the leader-follower formation control problem. The purpose of designing IB controllers is to evaluate the robustness of H∞ controllers by comparison. The simulation results from both types of controllers are compared and robustness performance of the H∞ controllers over the IB controllers are demonstrated.
{"title":"Leader-Follower Formation Suboptimal Control for Quadrotors","authors":"Wesam M. Jasim, Dongbing Gu","doi":"10.1504/ijscc.2020.10024427","DOIUrl":"https://doi.org/10.1504/ijscc.2020.10024427","url":null,"abstract":"In this work, a leader-follower formation control problem of quadrotors is investigated. The quadrotor dynamic model is represented by unit quaternion with the consideration of external disturbance. Nonlinear H∞ design approach is introduced and robust controllers for both leader and follower robots are derived by solving a Hamilton-Jacobi inequality following from a result for general nonlinear affine systems. Then some robustness conditions of the proposed controllers are obtained by selecting appropriate parametrised Lyapunov functions. The resultant state feedback controllers establish the asymptotically stability of the closed-loop nonlinear system. In addition, integral backstepping (IB) controllers are also derived for the leader-follower formation control problem. The purpose of designing IB controllers is to evaluate the robustness of H∞ controllers by comparison. The simulation results from both types of controllers are compared and robustness performance of the H∞ controllers over the IB controllers are demonstrated.","PeriodicalId":38610,"journal":{"name":"International Journal of Systems, Control and Communications","volume":"136 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74693499","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}
Pub Date : 2020-02-20DOI: 10.1504/ijscc.2020.10027049
A. Amrani, A. Hajjaji, I. Boumhidi, A. Hmamed
This paper investigates the design problem of H∞ filtering for discrete nonlinear systems in the Takagi-Sugeno (T-S) form. Our aim is to design a new filter guaranteeing an H∞ performance level in specific finite frequency (FF) ranges. Using the well-known generalised Kalman Yakubovich Popov lemma, Finsler's lemma, sufficient conditions for the existence of H∞ filters for different FF ranges are proposed and then unified in terms of solving a set of linear matrix inequalities (LMIs). Two examples are given to illustrate the effectiveness and the less conservatism of the proposed approach in comparison with the existing methods.
{"title":"Improved finite frequency H∞ filtering for Takagi-Sugeno fuzzy systems","authors":"A. Amrani, A. Hajjaji, I. Boumhidi, A. Hmamed","doi":"10.1504/ijscc.2020.10027049","DOIUrl":"https://doi.org/10.1504/ijscc.2020.10027049","url":null,"abstract":"This paper investigates the design problem of H∞ filtering for discrete nonlinear systems in the Takagi-Sugeno (T-S) form. Our aim is to design a new filter guaranteeing an H∞ performance level in specific finite frequency (FF) ranges. Using the well-known generalised Kalman Yakubovich Popov lemma, Finsler's lemma, sufficient conditions for the existence of H∞ filters for different FF ranges are proposed and then unified in terms of solving a set of linear matrix inequalities (LMIs). Two examples are given to illustrate the effectiveness and the less conservatism of the proposed approach in comparison with the existing methods.","PeriodicalId":38610,"journal":{"name":"International Journal of Systems, Control and Communications","volume":"132 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84916853","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}
Pub Date : 2020-02-20DOI: 10.1504/ijscc.2020.10027052
M. B. Mashade
Constant false alarm rate (CFAR) processors play a vital role in organising the heterogeneous detection of fluctuating targets. Specifically, the popular cell-averaging (CA) processor is incapable of maintaining its design false alarm rate when facing clutter with statistical variations. Order-statistics (OS) and trimmed-mean (TM) algorithms have been suggested to robustly estimate the heterogeneous threshold. They have, however, degraded homogeneous performance. For simultaneously exploiting the merits of CA, and OS or TM processors, a hybrid combination of them have been recently proposed. This paper deals with the analysis of these models. Closed-form expression is derived for their detection performance. The primary and outlying targets follow χ2-distribution with four-degrees of freedom in their fluctuation. Our simulation results reveal that the new version CA_TM exhibits a homogeneous performance that outweighs that of Neyman-Pearson (N-P) detector which is employed as a baseline comparison for other techniques in the CFAR world.
{"title":"Performance superiority of CA_TM model over N-P algorithm in detecting χ2 fluctuating targets with four-degrees of freedom","authors":"M. B. Mashade","doi":"10.1504/ijscc.2020.10027052","DOIUrl":"https://doi.org/10.1504/ijscc.2020.10027052","url":null,"abstract":"Constant false alarm rate (CFAR) processors play a vital role in organising the heterogeneous detection of fluctuating targets. Specifically, the popular cell-averaging (CA) processor is incapable of maintaining its design false alarm rate when facing clutter with statistical variations. Order-statistics (OS) and trimmed-mean (TM) algorithms have been suggested to robustly estimate the heterogeneous threshold. They have, however, degraded homogeneous performance. For simultaneously exploiting the merits of CA, and OS or TM processors, a hybrid combination of them have been recently proposed. This paper deals with the analysis of these models. Closed-form expression is derived for their detection performance. The primary and outlying targets follow χ2-distribution with four-degrees of freedom in their fluctuation. Our simulation results reveal that the new version CA_TM exhibits a homogeneous performance that outweighs that of Neyman-Pearson (N-P) detector which is employed as a baseline comparison for other techniques in the CFAR world.","PeriodicalId":38610,"journal":{"name":"International Journal of Systems, Control and Communications","volume":"18 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90761896","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}
Pub Date : 2020-02-20DOI: 10.1504/ijscc.2020.10027051
Chirine Benzazah, Loubna Lazrak, Soukaina El Daoudi, M. A. Lafkih
This paper deals with a part implementation of the distributed generation chain system based on hydraulic power source operated in low power and controlled by DSP F2812. The experimental part of the chain includes a controlled two-level three-phase inverter connected, via an LC filter, to a load. This latter consists of a balanced three-phase resistive without neutral point joint, for this reason, the implementation requires fewer sensors as measuring devices. The proposed control strategy uses just two regulation loops; one of them is for the AC output voltages and the other one is for the input inductor currents of LC filter. This strategy was developed on Matlab-Simulink and implemented in eZdsp TMS320F2812 DSP board from spectrum digital. To confirm the efficiency and robustness of the chain part implementation, the experimental results using the implemented inverter was compared with a compact industrial module 7MBR15SA120 inverter mounting with the same control interface and measurement cards. The experimental waveforms comparison prove that there is a good match between the two practice prototypes, validate the theoretical study as well as the simulation results obtained and confirm the effectiveness of the proposed control strategy.
{"title":"Low power experimental prototype of a controlled three-phase inverter using D.S.P (TMS320F2812) for a hydraulic energy conversion chain application","authors":"Chirine Benzazah, Loubna Lazrak, Soukaina El Daoudi, M. A. Lafkih","doi":"10.1504/ijscc.2020.10027051","DOIUrl":"https://doi.org/10.1504/ijscc.2020.10027051","url":null,"abstract":"This paper deals with a part implementation of the distributed generation chain system based on hydraulic power source operated in low power and controlled by DSP F2812. The experimental part of the chain includes a controlled two-level three-phase inverter connected, via an LC filter, to a load. This latter consists of a balanced three-phase resistive without neutral point joint, for this reason, the implementation requires fewer sensors as measuring devices. The proposed control strategy uses just two regulation loops; one of them is for the AC output voltages and the other one is for the input inductor currents of LC filter. This strategy was developed on Matlab-Simulink and implemented in eZdsp TMS320F2812 DSP board from spectrum digital. To confirm the efficiency and robustness of the chain part implementation, the experimental results using the implemented inverter was compared with a compact industrial module 7MBR15SA120 inverter mounting with the same control interface and measurement cards. The experimental waveforms comparison prove that there is a good match between the two practice prototypes, validate the theoretical study as well as the simulation results obtained and confirm the effectiveness of the proposed control strategy.","PeriodicalId":38610,"journal":{"name":"International Journal of Systems, Control and Communications","volume":"80 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90321519","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}
Pub Date : 2020-01-01DOI: 10.1504/ijscc.2020.10031951
Amira Slimani, M. Redjimi, D. Slimani
{"title":"An agent-based cluster head management strategy for hierarchical wireless sensor network","authors":"Amira Slimani, M. Redjimi, D. Slimani","doi":"10.1504/ijscc.2020.10031951","DOIUrl":"https://doi.org/10.1504/ijscc.2020.10031951","url":null,"abstract":"","PeriodicalId":38610,"journal":{"name":"International Journal of Systems, Control and Communications","volume":"21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89860633","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}
Pub Date : 2020-01-01DOI: 10.1504/ijscc.2020.10031956
K. Ramakrishnan
{"title":"Stability analysis of damping compensated generator-excitation control system with time-varying delays","authors":"K. Ramakrishnan","doi":"10.1504/ijscc.2020.10031956","DOIUrl":"https://doi.org/10.1504/ijscc.2020.10031956","url":null,"abstract":"","PeriodicalId":38610,"journal":{"name":"International Journal of Systems, Control and Communications","volume":"17 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85050904","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}
Pub Date : 2020-01-01DOI: 10.1504/ijscc.2020.10031264
Silki Baghla, S. Bansal
{"title":"An adaptive algorithm for energy efficient network selection in heterogeneous networks","authors":"Silki Baghla, S. Bansal","doi":"10.1504/ijscc.2020.10031264","DOIUrl":"https://doi.org/10.1504/ijscc.2020.10031264","url":null,"abstract":"","PeriodicalId":38610,"journal":{"name":"International Journal of Systems, Control and Communications","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89614379","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}
Pub Date : 2020-01-01DOI: 10.1504/ijscc.2020.10031266
Gitimayee Sahu, S. Pawar
{"title":"Wireless backhaul networks: centralised vs. distributed scenario","authors":"Gitimayee Sahu, S. Pawar","doi":"10.1504/ijscc.2020.10031266","DOIUrl":"https://doi.org/10.1504/ijscc.2020.10031266","url":null,"abstract":"","PeriodicalId":38610,"journal":{"name":"International Journal of Systems, Control and Communications","volume":"22 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73852583","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}
Pub Date : 2020-01-01DOI: 10.1504/ijscc.2020.10031259
O. S. Nisha, K. Sankar
{"title":"VLSI implementation of an efficient MBIST architecture using RLFSR","authors":"O. S. Nisha, K. Sankar","doi":"10.1504/ijscc.2020.10031259","DOIUrl":"https://doi.org/10.1504/ijscc.2020.10031259","url":null,"abstract":"","PeriodicalId":38610,"journal":{"name":"International Journal of Systems, Control and Communications","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81846603","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}
Pub Date : 2020-01-01DOI: 10.1504/ijscc.2020.10031957
Doan Thi Que, N. X. Quyen, T. Hoang
{"title":"Performance analysis for DCSK system over land mobile satellite channel","authors":"Doan Thi Que, N. X. Quyen, T. Hoang","doi":"10.1504/ijscc.2020.10031957","DOIUrl":"https://doi.org/10.1504/ijscc.2020.10031957","url":null,"abstract":"","PeriodicalId":38610,"journal":{"name":"International Journal of Systems, Control and Communications","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89217188","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}
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