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Detection Of Spike-Wave Discharge Restarts In Genetic Rat Model Based On Frequency Dynamics 基于频率动力学的遗传大鼠峰波放电重启检测
Cybernetics and Physics Pub Date : 2022-11-17 DOI: 10.35470/2226-4116-2022-11-3-121-130
A. Dolinina, M. Sysoeva, C. V. van Rijn, I. Sysoev
{"title":"Detection Of Spike-Wave Discharge Restarts In Genetic Rat Model Based On Frequency Dynamics","authors":"A. Dolinina, M. Sysoeva, C. V. van Rijn, I. Sysoev","doi":"10.35470/2226-4116-2022-11-3-121-130","DOIUrl":"https://doi.org/10.35470/2226-4116-2022-11-3-121-130","url":null,"abstract":"The spike-wave discharges in epileptic brain can be maintained by one or more sequential restarts, which should have mechanisms similar to those of discharge initiation. To examine this hypothesis an original algorithm for automatically determining restarts was developed. To implement the algorithm the windowed fast Fourier transform with a Hann window was used. The method was to track the frequency consecutive drops on a skeleton constructed from a spectrogram in a selected frequency range (7–12 Hz). The method does not rely on changes in the amplitude of the oscillations, while most of the known methods clearly rely on an increase in power in certain spectral ranges. Discharge restarts were successfully detected and were found to be not different from initial starts in terms of main frequency dynamics. Restarts were diagnosed in about four less often than starts. The existence of restarts confirms that different factors are responsible for maintenance of long spike-wave discharges: some discharges are supported by the special maintenance mechanism, others are continuous chains of short discharges.","PeriodicalId":37674,"journal":{"name":"Cybernetics and Physics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49120090","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
Minimum energy control of fractional-order differential-algebraic system 分数阶微分代数系统的最小能量控制
Cybernetics and Physics Pub Date : 2022-11-17 DOI: 10.35470/2226-4116-2022-11-3-151-156
Muhafzan, Zulakmal, Y. M. Putri, L. June
{"title":"Minimum energy control of fractional-order differential-algebraic system","authors":"Muhafzan, Zulakmal, Y. M. Putri, L. June","doi":"10.35470/2226-4116-2022-11-3-151-156","DOIUrl":"https://doi.org/10.35470/2226-4116-2022-11-3-151-156","url":null,"abstract":"This paper discusses the minimum energy control problem of fractional-order differential-algebraic system. The main aim of this paper is to find the minimum energy that drives an initial state of the fractional order differential-algebraic system to the zero state such that an index performance is minimized. The method of solving is to convert the minimum energy control problem of fractional-order differential-algebraic system into the standard fractional-order linear quadratic optimization problem by using a transformation and further solve the standard fractional-order linear quadratic optimization using the available theory in the literature. Under some particular conditions, we find the explicit formulas of the minimum energy control of fractional-order differential-algebraic system in Mittag-Leffler terms.","PeriodicalId":37674,"journal":{"name":"Cybernetics and Physics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47493376","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
On tracking control problem for fractional order descriptor systems 分数阶广义系统的跟踪控制问题
Cybernetics and Physics Pub Date : 2022-09-30 DOI: 10.35470/2226-4116-2022-11-2-87-93
Muhafzan, A. Nazra, A. I. Baqi, Zulakmal
{"title":"On tracking control problem for fractional order descriptor systems","authors":"Muhafzan, A. Nazra, A. I. Baqi, Zulakmal","doi":"10.35470/2226-4116-2022-11-2-87-93","DOIUrl":"https://doi.org/10.35470/2226-4116-2022-11-2-87-93","url":null,"abstract":"In this paper, we discuss the tracking control problem for fractional order descriptor systems. The aim of this paper is to find the optimal tracking control-state pair satisfying the dynamic constraint of the form a fractional order descriptor system such that the performance index is minimized. The method of solving is to convert such the tracking control problem for a fractional order descriptor system into the standard fractional order system. Under some particular conditions, we find the explicit formulas of the optimal tracking control-state pair which minimize the performance index.","PeriodicalId":37674,"journal":{"name":"Cybernetics and Physics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48894638","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
Parameters estimation of multi-sinusoidal signal in finite-time 有限时间内多正弦信号的参数估计
Cybernetics and Physics Pub Date : 2022-09-30 DOI: 10.35470/2226-4116-2022-11-2-74-81
Tung Nguyen Khac, S. Vlasov, A. Pyrkin
{"title":"Parameters estimation of multi-sinusoidal signal in finite-time","authors":"Tung Nguyen Khac, S. Vlasov, A. Pyrkin","doi":"10.35470/2226-4116-2022-11-2-74-81","DOIUrl":"https://doi.org/10.35470/2226-4116-2022-11-2-74-81","url":null,"abstract":"The problems of identifying the frequency and parameters of multi-sinusoidal signals with constant parameters are considered in finite time. The signal is represented as the output of a linear generator, where the parameters of the sinusoidal signal (amplitude, phase, and frequency) are unknown. The main idea is to apply the Jordan waveform and lag to parameterize the signal and obtain a linear regression model. Unknown parameters are estimated using DREM method. The performance of algorithms considered in the article is illustrated by computer modeling. Our main contribution is to propose a new approach for parameterization of multisinusoidal signals and finite time parameter estimation.","PeriodicalId":37674,"journal":{"name":"Cybernetics and Physics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41811518","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
Sensor network control based on randomized and multi-agent approaches 基于随机和多智能体方法的传感器网络控制
Cybernetics and Physics Pub Date : 2022-09-30 DOI: 10.35470/2226-4116-2022-11-2-94-105
A. Sergeenko, O. Granichin
{"title":"Sensor network control based on randomized and multi-agent approaches","authors":"A. Sergeenko, O. Granichin","doi":"10.35470/2226-4116-2022-11-2-94-105","DOIUrl":"https://doi.org/10.35470/2226-4116-2022-11-2-94-105","url":null,"abstract":"In this paper, a development of randomized and multiagent algorithms is presented. The examples and their advantages are discussed. Different combined algorithms which are applicable for the multi-sensor multitarget tracking problem are shown. These algorithms belong to the class of methods used in derivative-free optimization and has proven efficacy in the problems including significant non-statistical uncertainties. The new algorithm which is an Accelerated consensus-based SPSA algorithm is validated through simulation.The main feature of that algorithm, combining the SPSA techniques, iterative averaging (“Local Voting Protocol”) and Nesterov Acceleration Method, is the ability to solve distributed optimization problems in the presence of signals with fully uncertain distribution; the only assumption is the signal’s limitation.","PeriodicalId":37674,"journal":{"name":"Cybernetics and Physics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41496895","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
Adaptive control system for structurally undefined thermal power plant on set of functioning states 基于功能状态集的结构不确定火电厂自适应控制系统
Cybernetics and Physics Pub Date : 2022-09-30 DOI: 10.35470/2226-4116-2022-11-2-67-73
E. L. Eremin, L. V. Nikiforova, D. A. Telichenko, E. A. Shelenok
{"title":"Adaptive control system for structurally undefined thermal power plant on set of functioning states","authors":"E. L. Eremin, L. V. Nikiforova, D. A. Telichenko, E. A. Shelenok","doi":"10.35470/2226-4116-2022-11-2-67-73","DOIUrl":"https://doi.org/10.35470/2226-4116-2022-11-2-67-73","url":null,"abstract":"In this paper the synthesis of adaptive control law for thermal power plant with input delay with a step-bystep changing dynamics is considered. The plant operates under conditions of a priori parametric and structural uncertainties when measuring only output signal. The structure of control system with an implicit reference model includes a predictor-compensator, command and output correction filters.","PeriodicalId":37674,"journal":{"name":"Cybernetics and Physics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42938771","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
Variational optimality condition in control of hyperbolic systems with boundary delay parameters 具有边界时滞参数的双曲型系统控制的变分最优性条件
Cybernetics and Physics Pub Date : 2022-09-30 DOI: 10.35470/2226-4116-2022-11-2-61-66
A. Arguchintsev, V. Poplevko, A. Sinitsyn
{"title":"Variational optimality condition in control of hyperbolic systems with boundary delay parameters","authors":"A. Arguchintsev, V. Poplevko, A. Sinitsyn","doi":"10.35470/2226-4116-2022-11-2-61-66","DOIUrl":"https://doi.org/10.35470/2226-4116-2022-11-2-61-66","url":null,"abstract":"An optimal control problem of a first-order hyperbolic system is studied, in which a boundary condition at one of the ends is determined from a controlled system of ordinary differential equations with constant state lag. Control functions are bounded and measurable functions. The system of ordinary differential equations at the boundary is linear in state. However the matrix of coefficients depends on control functions. Therefore, the optimality condition of Pontryagin’s maximum principle type in this problem is a necessary, but not a sufficient optimality condition. In this paper, the problem is reduced to an optimal control problem of a special system of ordinary differential equations. The proposed approach is based on the use of an exact formula of the cost functional increment. The reduced problem can be solved using a wide range of effective methods used for optimization problems in systems of ordinary differential equations. Problems of this kind arise when modeling thermal separation processes, suppression of mechanical\u0000vibrations in drilling, wave processes and population dynamics.","PeriodicalId":37674,"journal":{"name":"Cybernetics and Physics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46311855","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
Altitude minimization of a group of unmanned low-flying vehicles without use of a priori information about the physical fields of the Earth 在不使用关于地球物理场的先验信息的情况下，一组无人低空飞行飞行器的高度最小化
Cybernetics and Physics Pub Date : 2022-09-30 DOI: 10.35470/2226-4116-2022-11-2-82-86
A. Knyazhsky, A. Nebylov
{"title":"Altitude minimization of a group of unmanned low-flying vehicles without use of a priori information about the physical fields of the Earth","authors":"A. Knyazhsky, A. Nebylov","doi":"10.35470/2226-4116-2022-11-2-82-86","DOIUrl":"https://doi.org/10.35470/2226-4116-2022-11-2-82-86","url":null,"abstract":"The article proposes a method for minimizing the altitued of a group of unmanned low-flying vehicles formed mainly over the lowest parts of the terrain. The input information is point slant ranges, the current parameters of the motion of the unmanned aerial vehicle and the specified end point of the route. As a result of the work, by means of computer simulation of Unmanned Arial Vehicle (UAV) motion in mountainous areas, the effectiveness of the proposed method for minimizing the altitude was evaluated. Computer simulation has shown that depending on the location of the start and end points of the trajectory, the terrain, the size of the permitted motion sector and the characteristics of the UAV, the average altitude of the trajectories of a group of low-flying vehicles decreases by approximately 150–540 m, which allows motion significantly below the tops of the terrain.","PeriodicalId":37674,"journal":{"name":"Cybernetics and Physics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45889483","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
Refined frequency estimates for stability domains of synchronization systems 同步系统稳定域的改进频率估计
Cybernetics and Physics Pub Date : 2022-09-30 DOI: 10.35470/2226-4116-2022-11-2-106-114
V. Smirnova, A. Proskurnikov, Roman V. Titov
{"title":"Refined frequency estimates for stability domains of synchronization systems","authors":"V. Smirnova, A. Proskurnikov, Roman V. Titov","doi":"10.35470/2226-4116-2022-11-2-106-114","DOIUrl":"https://doi.org/10.35470/2226-4116-2022-11-2-106-114","url":null,"abstract":"n this paper we examine stability of Lur’e-type systems arising as a feedback superpositions of infinite-dimensional linear blocks, described by integrodifferential Volterra equations, and periodic nonlinearities. Such systems have multiple equilibria, so traditional methods of stability investigation, defined for systems with single equilibrium are no good here. In the paper traditional Popov method of a priori integral indices is combined with two special techniques: Leonov’s nonlocal reduction method and the Bakaev-Guzh procedure. As a result new frequency–algebraic stability criteria are established, yielding tightened estimates of stability domains in the space of the system’s parameters.","PeriodicalId":37674,"journal":{"name":"Cybernetics and Physics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47520593","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
Cybernetics and Physics: ten years online together 控制论和物理学:十年在线
Cybernetics and Physics Pub Date : 2022-06-02 DOI: 10.35470/2226-4116-2022-11-1-4-5
A. Fradkov
{"title":"Cybernetics and Physics: ten years online together","authors":"A. Fradkov","doi":"10.35470/2226-4116-2022-11-1-4-5","DOIUrl":"https://doi.org/10.35470/2226-4116-2022-11-1-4-5","url":null,"abstract":"Prehistory and history of the Cybernetics and Physics journal are outlined on occasion of its ten years jubilee. Recent trends in the scope of the journal are discussed.","PeriodicalId":37674,"journal":{"name":"Cybernetics and Physics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45519006","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
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