发布求助
文献互助 智能选刊 最新文献

Cybernetics and Physics最新文献

筛选
英文 中文
Investigation of robust ship course control based on auxiliary loop method 基于辅助回路方法的船舶航向鲁棒控制研究
Cybernetics and Physics Pub Date : 2021-12-31 DOI: 10.35470/2226-4116-2021-10-4-248-252
A. Imangazieva
{"title":"Investigation of robust ship course control based on auxiliary loop method","authors":"A. Imangazieva","doi":"10.35470/2226-4116-2021-10-4-248-252","DOIUrl":"https://doi.org/10.35470/2226-4116-2021-10-4-248-252","url":null,"abstract":"A novel robust control law is investigated on the problem of ship stabilization on the trajectory, which allows one to compensate perturbations in the parameters of the mathematical model of ship dynamics in cases of their changes caused by external conditions, namely: sea waves, currents, wind gusts, etc. To implement the proposed control law, only measured adjustable values are required such as the yaw angle and the control action that is the angle of the rudder of the ship. The synthesized ship course control system was investigated in MATLAB. The law of controlling the ship’s course\u0000with unknown parameters and external disturbances in the power supply is proposed. The design of the control law is based on a robust auxiliary loop algorithm and Khalil observers. The simulations illustrate the efficiency of the proposed control law.","PeriodicalId":37674,"journal":{"name":"Cybernetics and Physics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49520379","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
Processing and model design of the gamma oscillation activity based on FitzHugh-Nagumo model and its interaction with slow rhythms in the brain 基于FitzHugh-Nagumo模型的伽马振荡活动的处理和模型设计及其与大脑慢节奏的相互作用
Cybernetics and Physics Pub Date : 2021-12-31 DOI: 10.35470/2226-4116-2021-10-4-265-272
E. S. Sevasteeva, S. Plotnikov, V. Lynnyk
{"title":"Processing and model design of the gamma oscillation activity based on FitzHugh-Nagumo model and its interaction with slow rhythms in the brain","authors":"E. S. Sevasteeva, S. Plotnikov, V. Lynnyk","doi":"10.35470/2226-4116-2021-10-4-265-272","DOIUrl":"https://doi.org/10.35470/2226-4116-2021-10-4-265-272","url":null,"abstract":"The brain is processing information 24 hours a day. There are millions of processes proceeding in it accompanied by various spectra of rhythms. This paper tests the hypothesis that the slow delta rhythm excites the gamma rhythm oscillations. Unlike other papers, we determine the slow rhythm spectrum not at the hypothesis stage but during the experiment. We design algorithms of filtering, envelope extraction, and correlation coefficient calculation for signal processing. Moreover, we examine the data on all electroencephalogram channels, which allows us to make a more reasonable conclusion. We confirm that a slow delta rhythm excites a fast gamma rhythm with an amplitude-phase type of interaction and calculate a delay between these two signals\u0000equal to about half a second.","PeriodicalId":37674,"journal":{"name":"Cybernetics and Physics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47642660","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
Control of vibrational field in an elastic vibration unit with DC motors and time-varying observer 具有直流电机和时变观测器的弹性振动单元的振动场控制
Cybernetics and Physics Pub Date : 2021-12-31 DOI: 10.35470/2226-4116-2021-10-4-277-286
O. Tomchina
{"title":"Control of vibrational field in an elastic vibration unit with DC motors and time-varying observer","authors":"O. Tomchina","doi":"10.35470/2226-4116-2021-10-4-277-286","DOIUrl":"https://doi.org/10.35470/2226-4116-2021-10-4-277-286","url":null,"abstract":"In the paper the problem of feedback control of vibrational fields in a vibration unit is analyzed taking into account the influence of the elasticity of cardan shafts, the drive dynamics, saturation for control torques. In addition, the synthesized rotor synchronization control algorithm uses the estimates of a non-stationary observer, which makes it possible to implement it practically on a two-rotor vibration unit SV-2. The performance of the closed loop mechatronic systems is examined by simulation for the model of the two-rotor vibration unit SV-2.","PeriodicalId":37674,"journal":{"name":"Cybernetics and Physics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47513285","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
Using of the SPSA method to improve the accuracy of the UAV following a given route under the action of wind loads 利用SPSA方法提高无人机在风荷载作用下沿给定路线飞行的精度
Cybernetics and Physics Pub Date : 2021-12-31 DOI: 10.35470/2226-4116-2021-10-4-224-230
K. Amelin, Vladimir Maltsev
{"title":"Using of the SPSA method to improve the accuracy of the UAV following a given route under the action of wind loads","authors":"K. Amelin, Vladimir Maltsev","doi":"10.35470/2226-4116-2021-10-4-224-230","DOIUrl":"https://doi.org/10.35470/2226-4116-2021-10-4-224-230","url":null,"abstract":"In the modern world, UAVs (unmanned aerial vehicles) are increasingly used in everyday life in solving civilian tasks. One of the main applications of UAVs is data collection with their reference to a given coordinate system. For example, for the task of aerial photography, it is necessary to accurately link each image to the global coordinate system. In addition to the exact location of coordinates, it is worth the exact movement of a given route, to collect data of exactly those places that are needed. Thus, it is very important to ensure the minimum deviation of the UAV from the given route under the conditions of external disturbances (wind disturbances) acting on it. The article describes a procedure for assessing wind speed and direction for a UAV control system using the SPSA method. The simulation results of the algorithm operation, confirmed during flight tests on an ultralight UAV with an ardupilot autopilot, are presented.","PeriodicalId":37674,"journal":{"name":"Cybernetics and Physics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49220105","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
A stochastic controlled Schroedinger equation: convergence and robust stability for numerical solutions 随机控制Schroedinger方程：数值解的收敛性和鲁棒稳定性
Cybernetics and Physics Pub Date : 2021-11-30 DOI: 10.35470/2226-4116-2021-10-3-178-184
C. Romero-Meléndez, D. Castillo-Fernández
{"title":"A stochastic controlled Schroedinger equation: convergence and robust stability for numerical solutions","authors":"C. Romero-Meléndez, D. Castillo-Fernández","doi":"10.35470/2226-4116-2021-10-3-178-184","DOIUrl":"https://doi.org/10.35470/2226-4116-2021-10-3-178-184","url":null,"abstract":"In this paper we study the stochastic stability of numerical solutions of a stochastic controlled Schr¨odinger equation. We investigate the boundedness in second moment, the convergence and the stability of the zero solution for this equation, using two new definitions of almost sure exponential robust stability and asymptotic stability, for the Euler-Maruyama numerical scheme. Considering that the diffusion term is controlled, by using the method of Lyapunov functions and the corresponding diffusion operator associated, we apply techniques of X. Mao and A. Tsoi for achieve our task. Finally,\u0000we illustrate this method with a problem in Nuclear Magnetic Resonance (NMR).","PeriodicalId":37674,"journal":{"name":"Cybernetics and Physics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48670528","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
Challenges of gated myocardial perfusion SPECT processing 门控心肌灌注SPECT处理的挑战
Cybernetics and Physics Pub Date : 2021-11-30 DOI: 10.35470/2226-4116-2021-10-3-171-177
V. Ploskikh, E. Kotina
{"title":"Challenges of gated myocardial perfusion SPECT processing","authors":"V. Ploskikh, E. Kotina","doi":"10.35470/2226-4116-2021-10-3-171-177","DOIUrl":"https://doi.org/10.35470/2226-4116-2021-10-3-171-177","url":null,"abstract":"The paper provides an in-depth look at gated myocardial perfusion single photon emission computed tomography (SPECT) data processing. Attention paid to several unmentioned subjects of the quantitative analysis of gated myocardial perfusion SPECT data. The article considers several options in the construction process of the ellipsoid coordinate system of the left ventricle (LV). Mathematical representation of polar maps is given. Formulas of the regional parameters calculation are proposed. Issues of phase analysis are explored.","PeriodicalId":37674,"journal":{"name":"Cybernetics and Physics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48983432","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
A multi-stage algorithm for image denoising based on PCA and adaptive TV-regularization 一种基于PCA和自适应TV正则化的多阶段图像去噪算法
Cybernetics and Physics Pub Date : 2021-11-30 DOI: 10.35470/2226-4116-2021-10-3-162-170
Tran Dang Khoa Phan
{"title":"A multi-stage algorithm for image denoising based on PCA and adaptive TV-regularization","authors":"Tran Dang Khoa Phan","doi":"10.35470/2226-4116-2021-10-3-162-170","DOIUrl":"https://doi.org/10.35470/2226-4116-2021-10-3-162-170","url":null,"abstract":"In this paper, we present an image denoising algorithm comprising three stages. In the first stage, Principal Component Analysis (PCA) is used to suppress the noise. PCA is applied to image blocks to characterize localized features and rare image patches. In the second stage, we use the Gaussian curvature to develop an adaptive total-variation-based (TV) denoising model to effectively remove visual artifacts and noise residual generated by the first stage. Finally, the denoised image is sharpened in order to enhance the contrast of the denoising result. Experimental results on natural images and computed tomography (CT) images demonstrated that the proposed algorithm yields denoising results better than competing algorithms in terms of both qualitative and quantitative aspects.","PeriodicalId":37674,"journal":{"name":"Cybernetics and Physics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49209187","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
Randomized approach to determine dynamic strength of ice 确定冰动强度的随机方法
Cybernetics and Physics Pub Date : 2021-11-30 DOI: 10.35470/2226-4116-2021-10-3-122-126
N. Granichin, G. Volkov, Y. Petrov, M. Volkova
{"title":"Randomized approach to determine dynamic strength of ice","authors":"N. Granichin, G. Volkov, Y. Petrov, M. Volkova","doi":"10.35470/2226-4116-2021-10-3-122-126","DOIUrl":"https://doi.org/10.35470/2226-4116-2021-10-3-122-126","url":null,"abstract":"The randomized method of Sign-Perturbed Sums (SPS) is applied within the framework of the incubation time approach to evaluate the dynamic strength of ice. The experimental data of [Carney et al., 2006; Wu and Prakash, 2015; Saletti et al., 2019] is analysed in order to estimate strength parameters of ice and describe the observed strain-rate sensitivity curves. The independence of incubation time value on the ice temperature is established in contrast with the significant dependency of the critical stress parameter. The obtained confidence interval of the spalled ice is in good correspondence with the scatter observed experimentally.","PeriodicalId":37674,"journal":{"name":"Cybernetics and Physics","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41373185","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
Cluster control of complex cyber-physical systems 复杂网络物理系统的集群控制
Cybernetics and Physics Pub Date : 2021-11-30 DOI: 10.35470/2226-4116-2021-10-3-191-200
Denis Uzhva, O. Granichin
{"title":"Cluster control of complex cyber-physical systems","authors":"Denis Uzhva, O. Granichin","doi":"10.35470/2226-4116-2021-10-3-191-200","DOIUrl":"https://doi.org/10.35470/2226-4116-2021-10-3-191-200","url":null,"abstract":"To our minds, the real world appears as a composition of different interacting entitites, which demonstrate complex behavior. In the current paper, we primarly aim to study such networked systems by developing corresponding approaches to modeling them, given a class of tasks. We derive it from the primary concept of information and a system, with corresponding dynamics emerging from interactions between system components. As we progress through the study, we discover three possible levels of certain synchronous pattern composition in complex systems: microscopic (the level of elementary components), mesoscopic (the level of clusters), and macroscopic (the level of the whole system). Above all, we focus on the clusterization phenomenon, which allows to reduce system complexity by regarding only a small number of stable manifolds, corresponding to cluster synchronization of system component states—as opposed to regarding the system as a whole or each elementary component separately. Eventually, we demonstrate\u0000how an optimization problem for cluster control synthesis can be formulated for a simple discrete linear system with clusterization.","PeriodicalId":37674,"journal":{"name":"Cybernetics and Physics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41831818","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
Power-efficient low-stray field hybrid magnets for MAGLEV technology 用于磁悬浮技术的低功耗杂散场混合磁体
Cybernetics and Physics Pub Date : 2021-11-30 DOI: 10.35470/2226-4116-2021-10-3-117-121
D. Arslanova, Alexey A. Firsov, V. Kukhtin, E. Lamzin, Mikhai Larionov, A. Nezhentzev, D. Ovsyannikov, I. Rodin, N. Shatil, S. Sytchevsky, V. Vasiliev, Anatoly Zaitsev
{"title":"Power-efficient low-stray field hybrid magnets for MAGLEV technology","authors":"D. Arslanova, Alexey A. Firsov, V. Kukhtin, E. Lamzin, Mikhai Larionov, A. Nezhentzev, D. Ovsyannikov, I. Rodin, N. Shatil, S. Sytchevsky, V. Vasiliev, Anatoly Zaitsev","doi":"10.35470/2226-4116-2021-10-3-117-121","DOIUrl":"https://doi.org/10.35470/2226-4116-2021-10-3-117-121","url":null,"abstract":"A hybrid suspension system is proposed for maglev transport that utilizes electromagnets (EM) in combination with permanent magnets (PM). Several design schemes are compared searching for optimum performance. Sufficient reduction of power consumption and stray field is achieved on the hybrid configuration as compared to conventional EM suspension systems.","PeriodicalId":37674,"journal":{"name":"Cybernetics and Physics","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69838294","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
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信