检索结果-内蒙古大学图书馆

您好，读者！请登录

内蒙古大学图书馆

首页
概况
党建
资源
服务
科研支持
- 论文收录引用证明
- 科技查新
知识产权
档案馆
帮助

咨询与建议

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

您的常用邮箱：*

您的手机号码：*

问题描述：

当前已输入0个字，您还可以输入200个字

全部搜索
期刊论文
图书
学位论文
标准
纸本馆藏
外文资源发现
数据库导航
超星发现

高级检索

时间限定

出版年份：

文献类型

图书期刊文献学位论文多媒体

馆藏选择

电子馆藏纸本馆藏

核心期刊

全部期刊 SCI 收录期刊 SSCI 收录期刊 EI 收录期刊 CSCD 收录期刊 CSSCI 收录期刊

语言

中文英文

文献类型

期刊文献图书学位论文标准纸本馆藏

帮助

文字说明：

T=题名（书名、题名），A=作者（责任者），K=主题词，P=出版物名称，PU=出版社名称，O=机构（作者单位、学位授予单位、专利申请人），L=中图分类号，C=学科分类号，U=全部字段，Y=年（出版发行年、学位年度、标准发布年）

检索规则说明：

AND代表“并且”；OR代表“或者”；NOT代表“不包含”；(注意必须大写,运算符两边需空一格)

检索范例：

范例一：(K=图书馆学 OR K=情报学) AND A=范并思 AND Y=1982-2016
范例二：P=计算机应用与软件 AND (U=C++ OR U=Basic) NOT K=Visual AND Y=2011-2016

分类表

所选分类

>> <<

限定检索结果

文献类型

4 篇 会议

馆藏范围

4 篇 电子文献
0 种 纸本馆藏

日期分布

学科分类号

4 篇 工学
- 4 篇 计算机科学与技术...
- 1 篇 控制科学与工程

主题

4 篇 fixed point iter...
2 篇 adaptive control
1 篇 underactuated sy...
1 篇 robust vs/sm con...
1 篇 polynomial noise...
1 篇 inverted pendulu...
1 篇 noise filtering
1 篇 acceleration fee...
1 篇 propeller-driven...
1 篇 fractional order...

机构

3 篇 obuda univ docto...
2 篇 obuda univ res &...
1 篇 natl text univ d...
1 篇 obuda univ abc c...
1 篇 obuda univ donat...
1 篇 obuda univ doct ...
1 篇 obuda univ john ...
1 篇 obuda univ antal...
1 篇 obuda univ physi...

作者

4 篇 tar jozsef k.
3 篇 khan hamza
2 篇 issa hazem
1 篇 varga arpad
1 篇 eigner gyorgy
1 篇 faitli tamas
1 篇 szili tamas

语言

4 篇 英文

检索条件"主题词=Fixed Point Iteration-based Adaptive Control"

共 4 条记录，以下是1-10 订阅

全选清除本页清除全部题录导出标记到"检索档案"

详细简洁

排序：

A Simple fixed point iteration-based Digital Noise Filter for control Applications 19

A Simple Fixed Point Iteration-Based Digital Noise Filter fo...

引用

IEEE Joint 19th International Symposium on Computational Intelligence and Informatics / 7th International Conference on Recent Achievements in Mechatronics, Automation, Computer Sciences and Robotics

作者： Varga, Arpad Eigner, Gyorgy Tar, Jozsef K. Obuda Univ Doct Sch Appl Inf & Appl Math Budapest Hungary Obuda Univ Physiol Controls Res Ctr Budapest Hungary Obuda Univ ABC Ctr Intelligent Robot Budapest Hungary

ISBN: (纸本)9781728156255

In various control applications as robotics, chemistry, life sciences, etc., the controllers need feedback terms that contain various integer or fractional order time-derivatives of the variables that describe the physical state of the controlled system as well as certain properties of the "nominal trajectory" that has to be precisely tracked. Normally these derivatives cannot be directly measured by dedicated sensors, so they numerically must be estimated by other, normally noise-burdened sensor signals. The higher the relative order of the control task is the higher the control method's sensitivity to the sensor noises is. To improve the situation the sensor signals and especially the time-derivatives calculated by the use of the sensor signals have to be "filtered" to reduce the undesirable consequence of the measurement noises. Filtering normally happens by somehow "averaging" a few past signals therefore it inevitably introduces "delay"-like effect that can degrade the controller's operation. Physically the act of filtering can be interpreted as the insertion of a dynamically coupled physical subsystem into the controlled engine + controller system. Electronic and electrical engineers developed various filters made of constant and passive elements as resistors, inductors, capacitors that can be described by differential equations. For these linear, time-invariant systems the use of the frequency domain became prevailing. In the case of digital controllers more primitive, fictitious models can be applied without physical realization. These subsystems can be even strongly nonlinear. In this paper a primitive noise-filtering technique for digital controllers is suggested. It has two simple, tunable parameters. Its operation is illustrated in the fixed point iteration-based adaptive control of a propeller-driven pendulum.

关键词： fixed point iteration-based adaptive control Noise Filtering Propeller-driven Pendulum

来源：评论

学校读者我要写书评

暂无评论

Improved Simple Noise Filtering for fixed point iteration-based adaptive controllers 20

Improved Simple Noise Filtering for Fixed Point Iteration-ba...

引用

20th IEEE International Symposium on Computational Intelligence and Informatics (CINTI)

作者： Khan, Hamza Issa, Hazem Tar, Jozsef K. Obuda Univ Doctoral Sch Appl Informat & Appl Math Budapest Hungary Obuda Univ Res & Innovat Ctr Antal Bejczy Ctr Intelligent Robot Budapest Hungary

ISBN: (纸本)9781728183398

For controlling dynamical systems certain controllers directly observe the physical response of the controlled systems and feed back the observed response for stabilization purposes. For instance, in robotics, where the rules of Classical Mechanics govern the behavior of the controlled system, this is the acceleration that is measured and fed back by the Acceleration Feedback controllers. In quite different manner, the fixed point iteration (FPI)-based adaptive controllers also feed back such observed information. If the driving forces act on a robot link through some deformable, elastic component, the relative order of the control task can be higher than two, and the system's response can be a higher order time-derivative of the observable coordinate. In this case the numerical derivatives of the noiseburdened measurement signals suffer from huge fluctuations due to which the need for the application of noise filtering techniques arises. Generally, any noise filtering corresponds to some "averaging" of the fresh, recent dynamic information with older, more or less "obsolete" one so it may corrupt the operation of the FPI-based control. The extent of this degradation depends on the "dynamics" of the nominal trajectory to be tracked, the nonlinearities in the dynamic model of the controlled system and cannot be tackled at high level generality. In the present paper a new, simple noise filtering technique is recommended for use in the FPIbased adaptive controller. Its corruption effect is investigated for a chirp signal independently of any dynamic control issue, then its application in the FPI-based adaptive control of a popular, nonlinear benchmarking system, the Duffing oscillator is studied via numerical simulations.

关键词： Acceleration Feedback control fixed point iteration-based adaptive control Fractional Order Derivatives Polynomial Noise Filtering

来源：评论

学校读者我要写书评

暂无评论

Comparison of the Operation of fixed point iteration-based adaptive and Robust VS/SM-type Solutions for controlling Two Coupled Fluid Tanks 20

Comparison of the Operation of Fixed Point Iteration-based A...

引用

20th IEEE International Symposium on Computational Intelligence and Informatics (CINTI)

作者： Khan, Hamza Issa, Hazem Tar, Jozsef K. Obuda Univ Doctoral Sch Appl Informat & Appl Math Budapest Hungary Natl Text Univ Dept Appl Sci Karachi Campus Karachi Pakistan Obuda Univ Antal Bejczy Ctr Intelligent Robot Res & Innovat Ctr Budapest Hungary

ISBN: (纸本)9781728183398

In this paper controlling the fluid level in the lower fluid tank of two coupled ones by setting the ingress rate at the upper tank was considered for comparing the behavior of two solutions: the PD-type Robust VS/SM, and the adaptive, fixed point iteration (FPI)-based controllers. The coupled tanks provide smooth and truncation-type nonlinearities in a relative order 2 control task, therefore it serves as a good benchmarking paradigm for the various control approaches. The controllers were simulated by simple sequential codes written in the Julia programming language. It is shown that the adaptive controller can accommodate itself to subtle details that are not taken into consideration in the robust control. The robust controller provides non-smooth, switching-type results while the adaptive one can provide smooth solution even in the presence of system modeling errors. In the case of the adaptive controller appropriate setting of the control parameters play central role. While mathematically the FPI-based solution is as simple as the Robust VS/SM controllers, in contrast to the Lyapunov function-based adaptive solutions, it easily can be inserted in the mathematical structure of the optimal controllers, so studying its behavior in the case of strongly nonlinear systems may open new ways for its successful applications.

关键词： adaptive control fixed point iteration-based adaptive control Robust VS/SM control

来源：评论

学校读者我要写书评

暂无评论

Preliminary Investigation on the Possible adaptive control of an Inverted Pendulum-type Electric Cart 18

Preliminary Investigation on the Possible Adaptive Control o...

引用

18th IEEE International Symposium on Computational Intelligence and Informatics (CINTI)

作者： Khan, Hamza Faitli, Tamas Szili, Tamas Tar, Jozsef K. Obuda Univ Doctoral Sch Appl Informat & Appl Math Budapest Hungary Obuda Univ Donat Banki Fac Mech & Safety Eng Inst Mech & Autotechn Budapest Hungary Obuda Univ John von Neumann Fac Informat Budapest Hungary Obuda Univ Res & Innovat Ctr Antal Bejczy Ctr Intelligent Robot Budapest Hungary

ISBN: (纸本)9781728111179

The model-based control of Classical Mechanical systems often has to cope with the problem of the lack of precise dynamic models. In the case of underactuated systems this problem is further burdened by the existence of strong nonlinearities, even in the form of dynamic singularities. The simultaneous existence of these problems does not promise successful application of the traditional robust control approaches that are based on a Linear Time-invariant (LTI) approximation of the model in the vicinity of some "working point" and the intensive use of the frequency domain. The relatively simple, strongly nonlinear Robust Variable Structure/Sliding Mode (VS/SM) controllers may produce undesirable chattering while the more sophisticated, Lyapunov function-based adaptive techniques may require complicated computations because the dynamic model of a relatively simple mechanical structure computationally may be quite complicated, especially when the system is driven by a Pulse Width Modulated (PWM), brushless electric DC motor that together with the mechanical components determines a relative order 3 control task yielding terms of order 0, 1, 2, and 3 time-derivatives of the state variables. The aim of the present paper is to investigate whether to what extent the calculation of these terms can be eliminated by the use of a simple, fixed point-iteration (FPI)-based adaptive controller that could be implemented by the use of an embedded micro-controller. The simulation results that belong to a certain solution are promising.

关键词： adaptive control fixed point iteration-based adaptive control Underactuated Systems Inverted Pendulum-type Cart Model

来源：评论

学校读者我要写书评

暂无评论

没有更多数据了...

全选清除本页清除全部题录导出标记到“检索档案”

共1页 << < 1 > >>

检索报告对象比较合并检索0

隐藏清空

合并搜索

回到顶部

执行限定条件

内容：

评分：

请选择保存的检索档案：

请选择收藏分类：

订阅名称：

通借通还

温馨提示：

图书名称：

借书校区：

取书校区：

手机号码：

邮箱地址：

一卡通帐号：

电话和邮箱必须正确填写，我们会与您联系确认。

联系人：

所在院系：

联系邮箱：

联系电话：

内蒙古自治区呼和浩特市赛罕区大学西街235号邮编: 010021

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：