共查询到17条相似文献,搜索用时 140 毫秒
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宋昱霖 《网络安全技术与应用》2015,(2):58+60
计算机网络在现代军事领域中的应用一方面改变了各国军队的作战方式,另一方面,也使战争模式从传统的实战转变为了信息作战的模式中来。作为现代军事战争模式的具体体现,网络攻防状态和角色的互换不仅关系着各国在现代战争中的地位和优势,同时,对于国家的安全和稳定也具有重要作用。为了进一步明确网络攻防的重要意义,本文引入网络控制论,通过对网络控制论系统的概念进行分析,在结合网络攻防模型的基础上,对网络控制论在入侵检测以及系统防护中的作用展开了深入研究。 相似文献
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本文概述了生物控制论的发展过程,结合实例说明了生物控制系统的研究方法及范畴,介绍了生物系统的特点及在临床中的应用。 相似文献
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一、控制论的发展历史控制论的创始人维纳,早期是一个研究随机过程和广义调和分析的数学家,也指导过通信技术的研究工作。正当第二次世界大战期间,1940年他写信给当时的麻省理工学院院长V.布什,要求进行与防空火力自动控制有关的理论研究,主要是设法解决防空高射炮瞄准目标的预测控制问题。当时用的方法是线性预测,敌机采用机动飞行策略很容易躲避高炮截击。他应用统计分析方法,于1942年提出了一份(平稳时间序列的外推、内插和平滑》的报告,当时是绝密的,直至1949年才公开出版,成为维纳滤波器的理论基础。与此同时,维纳和一批… 相似文献
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科学界很多人认为,相对论、量子论和控制论是20世纪上半叶的三大科学伟绩,是人类认识和改造世界的三大飞跃。控制论是系统工程、系统科学的基础构件,后者又是多学科的综合集成。一控制论的出现,通常都认为从维纳1948年出版第一本书开始‘c但魏宏森“维纳在清华大学”一文中考证说,“控制论并非如人们所知道的那样产生于美国,它的发端在中国的清华大学”[2]。魏宏森引用维纳于1954年出版的回顾科学生涯的书(我是一个数学家)中的自述,他宁愿选择在清华大学任客座教授的1935年作为创立控制论的起点。他在清华与李郁荣教授合作研制滤… 相似文献
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本文叙述管理控制论的诞生和学术现况,包括定义、基本概念、原理和方法论;列举出8种最重要的管理控制论方法:生产过程改进法、活力系统模型法、交互规划法、系统动力学法、五项修炼法、必备组织和五音阶法、全民协管法和整体管理控制论法;简述了每种方法并从控制论的观点对之加以评注.最后在结语中进行分析、讨论、比较和展望. 相似文献
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Fundamental aspects of cybernetics, such as goals, problems, methods, tools, brief history, and correlation with other sciences,
are considered. Cybernetics in its classical interpretation is the science of information management, communication, and processing.
As cybernetics developed, this definition was formalized as the science of methods and processes of information acquisition,
storage, processing, analysis, and evaluation, which allows it to apply to decision making in complex control systems. These
systems include all engineering, biological, administrative, social, ecological, and economical systems. The main thesis that
determined the goals, problems, subject matter, and development of cybernetics as a whole up to the present is the similarity
in management and communication processes in machines, living organisms, and both animal and human societies. First of all,
these are processes of transfer, storage, and processing of information, i.e., various signals, messages, and data. Any signal
and any information may be considered independently from its particular content and destination as a certain choice between
two or more values having the known probabilities (selective concept of information). It allows us to treat all processes
on the basis of a unified measure and statistical apparatus. The idea of the general theory of control and communication,
that is, cybernetics, is based on this hypothesis. 相似文献
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AbstractThis article consists of three parts. In the first part we describe a short history of cybernetics and an effort, which has been undertaken by a group of scientists in the United States and Europe in recent years, to expand the conception of science so that it more successfully encompasses the social sciences. The intent is to aid communication among disciplines and improve our ability to manage social systems. The second part of the article presents an effort in Russia to develop reflexivity theory into a general theory of purposeful, self-developing systems, thus improving our understanding and management of social systems. Understanding Western and Eastern approaches to cybernetics can be difficult because of the very different histories and intellectual traditions of cybernetics in the United States and Russia. The article ends with a comparison of the two approaches to cybernetics, comparing their features side by side. The differences suggest a great potential for ideas from Russian and Western scientists to enrich the further development of cybernetics and science in East and West. 相似文献
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Z. Gao 《控制理论与应用(英文版)》2014,12(2):097-109
The landmark book of Hsue-Shen Tsien, ‘Engineering Cybernetics', gave birth 60 years ago to an engineering science of interrelations and synthetic behaviors. Clothing the bare bones of Norbert Wiener's conception of cybernetics, the book delineates for the new science the requirement(of having direct impacts on engineering applications), the aim(of encapsulating engineering principles and concepts), the problems(of analysis, design, and uncertainty), the tools(of basic and advanced mathematics), and the scope(systems that are single input and output or multiple input and output, linear or nonlinear, deterministic or stochastic).The book is a showcase of originality, critical thinking and foresights. In particular, the author calls into question the basic assumption that ‘the properties and characteristics of the system to be controlled were always assumed to be known' and points out that, in reality, ‘large unpredictable variations of the system properties may occur'. Sixty years later, the full spectrum of Tsien's prophetic ideas is yet to be fully grasped and engineering cybernetics, as Tsien envisioned, is still in the making. 相似文献
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