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Approximate Method for Estimating Characteristics of Joint Service of Real-Time Traffic and Elastic Data Traffic in Multiservice Access Nodes 估算多业务接入节点中实时流量和弹性数据流量联合服务特性的近似方法
IF 0.7 4区 计算机科学
Automation and Remote Control Pub Date : 2023-11-01 DOI: 10.1134/s0005117923110073
{"title":"Approximate Method for Estimating Characteristics of Joint Service of Real-Time Traffic and Elastic Data Traffic in Multiservice Access Nodes","authors":"","doi":"10.1134/s0005117923110073","DOIUrl":"https://doi.org/10.1134/s0005117923110073","url":null,"abstract":"<span> <h3>Abstract</h3> <p>A mathematical model of joint servicing of priority real-time traffic and elastic data traffic in multiservice access nodes has been constructed and studied. Definitions of quality indicators for joint servicing of incoming requests for information services are provided. A system of statistical equilibrium equations is formed and its use for calculating the exact values of the introduced characteristics is considered. A method for approximate calculation of characteristics is proposed, based on the construction of a system of simplified equilibrium equations. It has been established that the obtained estimates of customer service indicators are asymptotically accurate in the region of large and small losses. The use of the developed method is shown to solve the problem of estimating the volume of traffic offloaded in an overload situation to other access nodes or to other frequency ranges in order to achieve values of specified QoS indicators and to solve the problem of planning the volume of required transmission resource of a multiservice access node.</p> </span>","PeriodicalId":55411,"journal":{"name":"Automation and Remote Control","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140045926","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Density Systems: Analysis and Control 密度系统：分析与控制
IF 0.7 4区 计算机科学
Automation and Remote Control Pub Date : 2023-11-01 DOI: 10.1134/s0005117923110024
{"title":"Density Systems: Analysis and Control","authors":"","doi":"10.1134/s0005117923110024","DOIUrl":"https://doi.org/10.1134/s0005117923110024","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>This paper considers a class of systems called density systems. For such systems, the derivative of a quadratic function depends on some function termed the density function. The latter function is used to define the properties of the space affecting the behavior of the systems under consideration. The role of density systems in control law design is shown. Control systems are constructed for plants with known and unknown parameters. The theoretical results are illustrated by numerical simulation.</p>","PeriodicalId":55411,"journal":{"name":"Automation and Remote Control","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140045664","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Robust Stability of Differential-Algebraic Equations under Parametric Uncertainty 参数不确定性下微分代数方程的稳健稳定性
IF 0.7 4区 计算机科学
Automation and Remote Control Pub Date : 2023-11-01 DOI: 10.1134/s0005117923110061
{"title":"Robust Stability of Differential-Algebraic Equations under Parametric Uncertainty","authors":"","doi":"10.1134/s0005117923110061","DOIUrl":"https://doi.org/10.1134/s0005117923110061","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>This paper considers linear differential-algebraic equations (DAEs) representing a system of ordinary differential equations with an identically singular matrix at the derivative in the domain of its definition. The matrix coefficients of DAEs are assumed to depend on the uncertain parameters belonging to a given admissible set. For the parametric family under consideration, structural forms with separate differential and algebraic parts are built. As is demonstrated below, the robust stability of the DAE family is equivalent to the robust stability of its differential subsystem. For the structure of perturbations, sufficient conditions are established under which the separation of DAEs into the algebraic and differential components preserves the original type of functional dependence on the uncertain parameters. Sufficient conditions for robust stability are obtained by constructing a quadratic Lyapunov function.</p>","PeriodicalId":55411,"journal":{"name":"Automation and Remote Control","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140045781","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Pattern Bifurcation in a Nonlocal Erosion Equation 非局部侵蚀方程中的模式分岔
IF 0.7 4区 计算机科学
Automation and Remote Control Pub Date : 2023-11-01 DOI: 10.1134/s000511792311005x
{"title":"Pattern Bifurcation in a Nonlocal Erosion Equation","authors":"","doi":"10.1134/s000511792311005x","DOIUrl":"https://doi.org/10.1134/s000511792311005x","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>This paper considers a periodic boundary value problem for a nonlinear partial differential equation with a deviating spatial variable. It is called the nonlocal erosion equation and was proposed as a model for the formation of dynamic patterns on the semiconductor surface. As is demonstrated below, the formation of a spatially inhomogeneous relief is a self-organization process. An inhomogeneous relief appears due to local bifurcations in the neighborhood of homogeneous equilibria when they change their stability. The analysis of this problem is based on modern methods of the theory of infinite-dimensional dynamic systems, including such branches as the theory of invariant manifolds, the apparatus of normal forms, and asymptotic methods for studying dynamic systems.</p>","PeriodicalId":55411,"journal":{"name":"Automation and Remote Control","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140045922","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Adaptive Observer of State and Disturbances for Linear Overparameterized Systems 线性过参数化系统的状态和扰动自适应观测器
IF 0.7 4区 计算机科学
Automation and Remote Control Pub Date : 2023-11-01 DOI: 10.1134/s0005117923110036
{"title":"Adaptive Observer of State and Disturbances for Linear Overparameterized Systems","authors":"","doi":"10.1134/s0005117923110036","DOIUrl":"https://doi.org/10.1134/s0005117923110036","url":null,"abstract":"<span> <h3>Abstract</h3> <p>The problem of state reconstruction is considered for a class of linear systems with time-invariant unknown parameters and overparameterization that are affected by external perturbations generated by a known exosystem with unknown initial conditions. An extended adaptive observer is proposed, which, in contrast to existing approaches, solves state and perturbation adaptive estimation problems for systems that are not represented in the observer canonical form. The obtained theoretical results are validated via mathematical modeling.</p> </span>","PeriodicalId":55411,"journal":{"name":"Automation and Remote Control","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140045929","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Iterative Learning Control of Stochastic Multi-Agent Systems with Variable Reference Trajectory and Topology 具有可变参考轨迹和拓扑的随机多智能体系统的迭代学习控制
IF 0.7 4区 计算机科学
Automation and Remote Control Pub Date : 2023-10-01 DOI: 10.1134/S0005117923060073
A. S. Koposov, P. V. Pakshin
{"title":"Iterative Learning Control of Stochastic Multi-Agent Systems with Variable Reference Trajectory and Topology","authors":"A. S. Koposov,&nbsp;P. V. Pakshin","doi":"10.1134/S0005117923060073","DOIUrl":"10.1134/S0005117923060073","url":null,"abstract":"<p>In modern smart manufacturing, robots are often connected via a network, and their task can change according to a predetermined program. Iterative learning control (ILC) is widely used for robots executing high-precision operations. Under network conditions, the efficiency of ILC algorithms may decrease if the program is restructured. In particular, the learning error may temporarily increase to an unacceptable value when changing the reference trajectory. This paper considers a networked system with the following features: the reference trajectory and parameters change between passes according to a known program, agents are subjected to random disturbances, and measurements are carried out with noise. In addition, the network topology changes due to the disconnection of some agents from the network and the connection of new agents to the network according to a given program. A distributed ILC design method is proposed based on vector Lyapunov functions for repetitive processes in combination with Kalman filtering. This method ensures the convergence of the learning error and reduces its increase caused by changes in the reference trajectory and network topology. The effectiveness of the proposed method is confirmed by an example.</p>","PeriodicalId":55411,"journal":{"name":"Automation and Remote Control","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50436695","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Sequential Improvement Method in Probabilistic Criteria Optimization Problems for Linear-in-State Jump Diffusion Systems 线性状态跳跃扩散系统概率准则优化问题的序列改进方法
IF 0.7 4区 计算机科学
Automation and Remote Control Pub Date : 2023-10-01 DOI: 10.1134/S0005117923060061
M. M. Khrustalev, K. A. Tsarkov
{"title":"Sequential Improvement Method in Probabilistic Criteria Optimization Problems for Linear-in-State Jump Diffusion Systems","authors":"M. M. Khrustalev,&nbsp;K. A. Tsarkov","doi":"10.1134/S0005117923060061","DOIUrl":"10.1134/S0005117923060061","url":null,"abstract":"<p>Here we study the problems of probabilistic and quantile optimization of multidimensional controllable jump diffusion. As the main tool we use Chebyshev-type probability estimates. With them the problems under consideration are reduced to one auxiliary deterministic optimal control problem in terms of the moment characteristics of the process. To find its solution, we use Krotov’s global improvement method.</p>","PeriodicalId":55411,"journal":{"name":"Automation and Remote Control","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50436696","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Method for Unmanned Vehicles Automatic Positioning Based on Signal Radially Symmetric Markers Recognition of Underwater Targets 基于水下目标信号径向对称标记识别的无人车自动定位方法
IF 0.7 4区 计算机科学
Automation and Remote Control Pub Date : 2023-10-01 DOI: 10.1134/S000511792307010X
R. M. Shakirzyanov, M. P. Shleymovich, S. V. Novikova
{"title":"Method for Unmanned Vehicles Automatic Positioning Based on Signal Radially Symmetric Markers Recognition of Underwater Targets","authors":"R. M. Shakirzyanov,&nbsp;M. P. Shleymovich,&nbsp;S. V. Novikova","doi":"10.1134/S000511792307010X","DOIUrl":"10.1134/S000511792307010X","url":null,"abstract":"<p>The article describes a method for automatically recognizing the target points of the trajectories of unmanned vehicles moving underwater, such as autonomous submarines and flying underwater vehicles of aircraft-like structures. The coordinate of the center of an object with radial symmetry properties is considered a terminal control point. A method for constructing a multiscale weighted image model based on the developed fast radial symmetry transformation and the Hough method is proposed, which ensures noise stability and high speed of calculating the coordinates of the desired point. When the object of interest has a contour of a specific color, a model is based on our proposed chromatic and weight components. As an example of detection, we have given an algorithm for detecting a base underwater station with light markers as a signal luminous ring.</p>","PeriodicalId":55411,"journal":{"name":"Automation and Remote Control","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50436705","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Period-Time Parametric Identification Method for Solving Location and Navigation Tasks 求解定位导航任务的周期时间参数识别方法
IF 0.7 4区 计算机科学
Automation and Remote Control Pub Date : 2023-10-01 DOI: 10.1134/S0005117923070032
Yu. G. Bulychev, A. A. Mozol
{"title":"Period-Time Parametric Identification Method for Solving Location and Navigation Tasks","authors":"Yu. G. Bulychev,&nbsp;A. A. Mozol","doi":"10.1134/S0005117923070032","DOIUrl":"10.1134/S0005117923070032","url":null,"abstract":"<p>With regard to location and navigation tasks for single-position passive observer, a bearing-free method for identifying parameters of a polynomial model of object motion has been developed taking into account evolution of the discrepancy between the periodic radiated and received quasi-periodic signal. The passage of a signal in an arbitrary physical environment is considered, at the same time, knowledge of the period of the emitted signal and assessing the current Doppler frequency are not required. The method is based on counting the number of periods of the received signal in a given surveillance intertissue. The issues related to the analysis of the resulting discrepancy by the observability of the method and its accuracy characteristics are considered. Useful practical recommendations and an illustrative context are given.</p>","PeriodicalId":55411,"journal":{"name":"Automation and Remote Control","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50436702","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Optimization of Interception Plan for Rectilinearly Moving Targets 优化直线运动目标的拦截计划
IF 0.7 4区 计算机科学
Automation and Remote Control Pub Date : 2023-10-01 DOI: 10.1134/s000511792310003x
{"title":"Optimization of Interception Plan for Rectilinearly Moving Targets","authors":"","doi":"10.1134/s000511792310003x","DOIUrl":"https://doi.org/10.1134/s000511792310003x","url":null,"abstract":"<span> <h3>Abstract</h3> <p>The article considers the problem of combinatorial optimization of interception of rectilinearly moving targets as a modification of the traveling salesman problem. New macro characteristics and definitions for this problem are introduced and used to classify the obtained solutions. Vector criteria composed of several important for applications functionals are described. The principles of no-waiting and maximum velocity are proved for two types of criteria. An intelligent brute-force algorithm with dynamic programming elements for finding optimal plans according to the introduced intercept criteria is proposed and implemented. Statistics of solutions of the developed algorithm is collected for a set of different initial parameters and the proposed macro characteristics are investigated. The conclusions about their applicability as local rules for the greedy algorithm for finding a suboptimal intercept plan are drawn.</p> </span>","PeriodicalId":55411,"journal":{"name":"Automation and Remote Control","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139979770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","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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