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Proceedings of the Joint INDS'11 & ISTET'11最新文献

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Output-to-spectrum assignment algorithm for a LTE Cognitive Radio filter bank LTE认知无线电滤波器组的输出频谱分配算法
Proceedings of the Joint INDS'11 & ISTET'11 Pub Date : 2011-07-25 DOI: 10.1109/INDS.2011.6024807
T. Schlechter
{"title":"Output-to-spectrum assignment algorithm for a LTE Cognitive Radio filter bank","authors":"T. Schlechter","doi":"10.1109/INDS.2011.6024807","DOIUrl":"https://doi.org/10.1109/INDS.2011.6024807","url":null,"abstract":"For mobile user equipments (UE) a careful power management is essential. Despite this fact, quite an amount of energy is wasted in todays UEs analog and digital frontends. Those are engineered for extracting the wanted signal from a spectral environment defined in the corresponding communication standards with their extremely tough requirements. In a real receiving process those requirements can typically be considered as dramatically less critical. Knowledge about the actual environmental spectral conditions allows to reconfigure both frontends to the actual needs and to save energy. In the recent past several approaches solving this issue for Long Term Evolution (LTE) systems have been discussed. The most sophisticated of those is a generic spectrum sensing technique, which we call LTE Cognitive Radio. One problem, which has to be treated in this system, is the assignment of each output in a dyadic filter bank architecture to each individual part of the observed spectrum. This paper focuses on an algorithm being able to map filter outputs to the correct part of the desired spectrum estimate.","PeriodicalId":117809,"journal":{"name":"Proceedings of the Joint INDS'11 & ISTET'11","volume":"12 15","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120889770","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: 5
Oepomo's algorithm for computing eigenvalue in system engineering 系统工程中特征值计算的Oepomo算法
Proceedings of the Joint INDS'11 & ISTET'11 Pub Date : 2011-07-25 DOI: 10.1109/INDS.2011.6024806
T. Oepomo
{"title":"Oepomo's algorithm for computing eigenvalue in system engineering","authors":"T. Oepomo","doi":"10.1109/INDS.2011.6024806","DOIUrl":"https://doi.org/10.1109/INDS.2011.6024806","url":null,"abstract":"Small signal stability is the ability of a system to maintain stability when subjected to small disturbances. Small signal analysis gives valuable data about the dynamic properties of the system and helps in its design, operation, and control. Time domain simulation and eigenvalue analysis are the two main ways to study system stability. Eigenvalue analysis are widely utilized to perform small signal stability analysis. The dynamic property of a system in response to small perturbations can be predicted by computing the eigenvalues and eigenvectors of the system matrix. The location of the eigenvalues can be used to study the system's performance. In addition eigenvectors can be used to predict the relative participation of the respective states in the corresponding disturbance modes. This paper described a new method and algorithm for the numerical solution of eigenvalues with the largest real part of essentially positive matrices. The method is based on a numerical implementation of Collatz's eigenvalue inclusion theorem for non-negative irreducible matrices. Finally, a numerical example is given to show the speed of convergence of the new algorithm.","PeriodicalId":117809,"journal":{"name":"Proceedings of the Joint INDS'11 & ISTET'11","volume":"85 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115239887","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
Study of PM10 pollution using signal analysis methods 用信号分析方法研究PM10污染
Proceedings of the Joint INDS'11 & ISTET'11 Pub Date : 2011-07-25 DOI: 10.1109/INDS.2011.6024814
Siwek Krzysztof, O. Stanislaw, S. Bartosz
{"title":"Study of PM10 pollution using signal analysis methods","authors":"Siwek Krzysztof, O. Stanislaw, S. Bartosz","doi":"10.1109/INDS.2011.6024814","DOIUrl":"https://doi.org/10.1109/INDS.2011.6024814","url":null,"abstract":"The paper presents the study concerning the properties of the time series representing the distribution of the daily mean of PM10 pollution. Applying the chosen signal analysis methods we investigate different aspects of the process of formation of the PM10 pollution, including the dependencies between the pollution and environmental parameters (wind, temperature, humidity, etc), correlations between different atmospheric variables, nonlinearity of the process, etc. The results of this study are important in modeling the dynamics of the pollution creation.","PeriodicalId":117809,"journal":{"name":"Proceedings of the Joint INDS'11 & ISTET'11","volume":"191 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114218180","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: 1
Socio-technical requirements for the system dynamics modeling of the driving action chains in cooperative traffic systems 合作交通系统中驾驶行为链系统动力学建模的社会技术要求
Proceedings of the Joint INDS'11 & ISTET'11 Pub Date : 2011-07-25 DOI: 10.1109/INDS.2011.6024833
O. Mitrea
{"title":"Socio-technical requirements for the system dynamics modeling of the driving action chains in cooperative traffic systems","authors":"O. Mitrea","doi":"10.1109/INDS.2011.6024833","DOIUrl":"https://doi.org/10.1109/INDS.2011.6024833","url":null,"abstract":"The current article structures the knowledge and requirements for the system dynamics modeling of the cooperative driving actions in cooperative traffic systems at the microscopic and macroscopic levels from the perspective of the sociology of technology","PeriodicalId":117809,"journal":{"name":"Proceedings of the Joint INDS'11 & ISTET'11","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114799532","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
Nonlinear dynamics of a Liénard delayed-feedback optoelectronic oscillator 延迟反馈光电振荡器的非线性动力学
Proceedings of the Joint INDS'11 & ISTET'11 Pub Date : 2011-07-25 DOI: 10.1109/INDS.2011.6024825
B. Romeira, J. Figueiredo, C. Ironside, K. Seunarine, J. Javaloyes
{"title":"Nonlinear dynamics of a Liénard delayed-feedback optoelectronic oscillator","authors":"B. Romeira, J. Figueiredo, C. Ironside, K. Seunarine, J. Javaloyes","doi":"10.1109/INDS.2011.6024825","DOIUrl":"https://doi.org/10.1109/INDS.2011.6024825","url":null,"abstract":"We present an optoelectronic oscillator (OEO) that is capable of generating complex and rich dynamics including stable periodic oscillations and broadband chaos. The OEO under analysis here is based on a resonant tunneling diode (RTD) oscillator driving a laser diode and a time-delayed feedback loop. The RTD based OEO is well described as a a Liénard oscillator with delayed-feedback. When subjected to external perturbation, the RTD-OEO generates periodic and chaotic states that are controlled by the delayed-feedback loop characteristics. The implemented numerical Liénard optoelectronic oscillator provides a simple way to study time-delayed dynamical systems containing negative resistance oscillators.","PeriodicalId":117809,"journal":{"name":"Proceedings of the Joint INDS'11 & ISTET'11","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130706362","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
An improvement of Particle Swarm Optimization and its application to a model-free PIλDμ tuning problem 粒子群优化的改进及其在无模型pi - λ - dμ调谐问题中的应用
Proceedings of the Joint INDS'11 & ISTET'11 Pub Date : 2011-07-25 DOI: 10.1109/INDS.2011.6024830
Deniz Sevis, Y. Denizhan
{"title":"An improvement of Particle Swarm Optimization and its application to a model-free PIλDμ tuning problem","authors":"Deniz Sevis, Y. Denizhan","doi":"10.1109/INDS.2011.6024830","DOIUrl":"https://doi.org/10.1109/INDS.2011.6024830","url":null,"abstract":"Particle Swarm Optimization (PSO) is an easily applicable population-based stochastic optimization technique which does not require much knowledge about the problem at hand. However, in many cases there is some a priori knowledge available that can be used to improve the optimization process. In this contribution a novel framework is proposed that allows a combination of the classical PSO algorithm with a method for exploiting available a priori knowledge. This so-called Knowledge Supported PSO (KS-PSO) method is applied to a specific optimization problem, namely the model-free tuning of a fractional order PID controller.","PeriodicalId":117809,"journal":{"name":"Proceedings of the Joint INDS'11 & ISTET'11","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131517857","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
Toward complex behavior and synchronization in networks and chaos with strong anticipation 对网络中的复杂行为和同步性以及混沌具有强烈的预期
Proceedings of the Joint INDS'11 & ISTET'11 Pub Date : 2011-07-25 DOI: 10.1109/INDS.2011.6024792
A. Makarenko
{"title":"Toward complex behavior and synchronization in networks and chaos with strong anticipation","authors":"A. Makarenko","doi":"10.1109/INDS.2011.6024792","DOIUrl":"https://doi.org/10.1109/INDS.2011.6024792","url":null,"abstract":"Since the introduction of strong anticipation by D. Dubois the numerous investigations of concrete systems had been proposed. But further development of the theory of anticipatory systems follows to the investigations of new examples of distributed in space systems with anticipation. So in proposed paper the new examples of distributed physical models with anticipation had been considered — namely the system of chains of coupled elements with strong anticipation. It is proposed the mathematical formulation of problems, possible analytical formulas for solutions and examples of presumable distributed solutions including synchronization. Multivalued behavior of such solutions is discussed.","PeriodicalId":117809,"journal":{"name":"Proceedings of the Joint INDS'11 & ISTET'11","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120908157","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
SPICE model for effective and accurate time domain simulation of power transformers SPICE模型用于电力变压器有效、准确的时域仿真
Proceedings of the Joint INDS'11 & ISTET'11 Pub Date : 2011-07-25 DOI: 10.1109/INDS.2011.6024795
L. Mandache, D. Topan, M. Iordache, I. Sirbu
{"title":"SPICE model for effective and accurate time domain simulation of power transformers","authors":"L. Mandache, D. Topan, M. Iordache, I. Sirbu","doi":"10.1109/INDS.2011.6024795","DOIUrl":"https://doi.org/10.1109/INDS.2011.6024795","url":null,"abstract":"The paper proposes an effective time-domain modeling and simulation strategy of power transformers, using the SPICE circuit simulator. The nonlinear phenomena of the iron core are carefully considered, including saturation, static hysteresis and eddy currents. The principle of magnetic circuit modeling is based on analog lumped equivalent circuits and the SPICE implementation uses the principle of modularity. Such a module includes a transformer winding and its core leg together with the ferromagnetic phenomena. The method allows simulating normal operation modes, as well as critical transients and faulty conditions, the simulation result containing all electromagnetic quantities as time-domain functions. The method is remarkable through its extremely short computation time and reasonable accuracy, it being conceived firstly as useful tool for design purposes.","PeriodicalId":117809,"journal":{"name":"Proceedings of the Joint INDS'11 & ISTET'11","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116438702","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: 9
Automatic synthesis of chaotic attractors using surrogate functions
Proceedings of the Joint INDS'11 & ISTET'11 Pub Date : 2011-07-25 DOI: 10.1109/INDS.2011.6024834
C. Sánchez-López, J. Muñoz-Pacheco, V. H. Carbajal-Gómez, R. Trejo-Guerra, E. Tlelo-Cuautle
{"title":"Automatic synthesis of chaotic attractors using surrogate functions","authors":"C. Sánchez-López, J. Muñoz-Pacheco, V. H. Carbajal-Gómez, R. Trejo-Guerra, E. Tlelo-Cuautle","doi":"10.1109/INDS.2011.6024834","DOIUrl":"https://doi.org/10.1109/INDS.2011.6024834","url":null,"abstract":"To automatically synthesize multi-scroll chaotic attractors, fundamental trade-offs on the nonlinear function must be analyzed and exploited. This paper proposes to use a surrogate function to approximate the trade-off between the operating frequency and the behavior of the switching points of the nonlinear function, which is a saturated nonlinear function series approximated by a piece-wise linear description. The surrogate function along with nonlinear system parameters and real physical active device parameters are used to compute all the parameters of the proposed nonlinear function. Later on, by using the synthesized nonlinear function, we develop an automatic synthesis methodology for multi-scroll chaotic attractors. Furthermore, to scale the frequency behavior of the chaotic attractors, we use other surrogate function that establishes a relation between the operating frequency and the scaling factor. Our results indicate that our synthesis methodology efficiently generates multi-scroll chaotic attractors, since nonlinear system parameters, real physical active device parameters and surrogate functions are used to compute not only all the parameters modeling the behavior of the nonlinear function, but chaotic attractor parameters are also computed. Numerical simulations and Hspice results illustrate the benefits of the new synthesis methodology.","PeriodicalId":117809,"journal":{"name":"Proceedings of the Joint INDS'11 & ISTET'11","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122576373","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
Nonlinear adaptive control of a continuous stirred tank reactor with time varying parameters 时变参数连续搅拌槽式反应器的非线性自适应控制
Proceedings of the Joint INDS'11 & ISTET'11 Pub Date : 2011-07-25 DOI: 10.1109/INDS.2011.6024832
E. Moshksar, F. Shabani-nia, R. Eslamloueyan
{"title":"Nonlinear adaptive control of a continuous stirred tank reactor with time varying parameters","authors":"E. Moshksar, F. Shabani-nia, R. Eslamloueyan","doi":"10.1109/INDS.2011.6024832","DOIUrl":"https://doi.org/10.1109/INDS.2011.6024832","url":null,"abstract":"The control of nonlinear multivariable continuous stirred tank reactors with time varying unknown parameters is a challenging area. This paper is concerned with a framework that combines a nonlinear observer for estimating unknown and time varying kinetic rates in reactor and a generic model control algorithm to manage the set points variations of the outputs. This nonlinear adaptive control scheme can perform well in the presence of external disturbances and it is easy to tune the design parameters. A series of computer simulations are provided to verify the ability of the proposed approach.","PeriodicalId":117809,"journal":{"name":"Proceedings of the Joint INDS'11 & ISTET'11","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125077947","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
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