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A new grid load frequency control approach is proposed for the doubly fed induction generator based wind power plants. The load frequency control issue in a power system is undergoing fundamental changes due to the rapidly growing amount of wind energy conversation system, and concentrating on maintaining generation-load balance and disturbance rejection. The prominent feature of the linear active disturbance rejection control approach is that the total disturbance can be estimated and then eliminated in real time. And thus, it is a feasible solution to deal with the load frequency control issue. In this paper, the application of the linear active disturbance rejection control approach in the load frequency control issue for a complex power system with wind energy conversation system based on doubly fed induction generator is investigated.

认知无线电是一种用于提高无线电通信频谱利用率的新的智能技术. 首先简述认知无线电的背景和概念,针 对认知无线电的频谱感知功能,详细地分析基于能量检测的频谱检测方法,在此基础上研究了噪声方差的不确定 性对检测性能的影响. 针对无线信号检测具有本地局域性和能量检测存在信噪比极限的特点,提出一种分布式有 限合作检测机制,推导出基于“OR”规则的有限合作机制的检测概率,并进行Monte Carlo仿真.(Cognitive radio is a radio communications spectrum used to improve the efficiency of the new smart technology. First, the background and outlined the concept of cognitive radio, spectrum sensing for cognitive radio capabilities, a detailed analysis of the spectrum based on energy detection test In this study the noise variance based on the uncertainty of the detection performance. for wireless signal detection with local detection of localized and there is signal to noise ratio limit of the energy characteristics of a distributed cooperative detection mechanism, derived out based on " OR" rules of the detection probability of the limited cooperation mechanism and conduct Monte Carlo simulation.)

本书详尽讲解了LabVIEW常用的编程方法、编程技巧和工程应用技术。全书共分为3篇，其中：入门篇归纳总结了LabVIEW编程人员必须掌握的基础知识，包括LabVIEW的基本概念、基本函数的用法和常用的运行结构，以及LabVIEW的基本数据结构和文件存储方式；高级篇细致地讲解了引用、属性、方法以及各类高级控件的运用，LabVIEW的文本方式编程以及DLL、C语言接口，基于Matlab语法的MathScript编程技术，LabVIEW基于组件的高级编程方法和编程模式；工程应用篇介绍了串口、并口和网络通信的常用方法，数据采集的基本原理和方法，LabVIEW实时系统的构建和编程，以及各种常用专业工具包的使用方法，包括数据库连接工具包、数据监控与记录工具包、报表生成工具包、状态图工具包等等。(This book explains LabVIEW commonly used programming methods, programming skills and engineering application technology. The book is divided into three articles, including: introductory summary of the LabVIEW programmer must master the basic knowledge, including the basic concepts of LabVIEW, the basic functions of the usage and commonly used operating structure, and LabVIEW basic data structure and file storage Advanced, and the use of various advanced controls, LabVIEW programming of text and DLL, C language interface, MathScript programming technology based on Matlab syntax, LabVIEW advanced programming method and programming mode based on component, The basic principles and methods of data acquisition, the construction and programming of LabVIEW real-time system, and the methods of using various commonly used professional tool kits, including connection kits, data monitoring, and so on. With the record kit, the report generation toolkit, the state diagram toolkit, and so on.)

说明：  基于matlab机械故障诊断教程，里面涵盖了很多程序，都可以直接用，还有模式识别，遗传算法、粒子群、支持向量机等，适合研究故障诊断方向使用(Based on the matlab mechanical fault diagnosis tutorial, it covers many programs that can be used directly, as well as pattern recognition, genetic algorithms, particle swarms, support vector machines, etc., suitable for research on fault diagnosis.)

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大学本科的GIS课件，对地理信息系统的学科有很全面的介绍，也相应的给了很多资源，对本科阶段的GIS学习有一定的帮助。(Undergraduate GIS courseware, the Geographic Information System has a very comprehensive introduction to the subject, but also a corresponding to a lot of resources, undergraduate stage of the GIS study has some help.)

自适应调零天线GPS抗干扰技术研究简析，介绍了智能天线的gps应用(Adaptive nulling antenna Analysis of GPS anti-jamming technology research, introduced the application of smart antenna gps)

这本书涵盖了UC Berkeley秋季的算法课程“Algorithm In The Real World”的各种算法笔记。其中包括压缩算法，密码算法，N-boby模拟，生物学匹配模式，索引和聚类等。是一本比较全面的介绍算法在实际世界中相关应用的书。(This book covers the fall of the algorithm UC Berkeley course " Algorithm In The Real World" notes a variety of algorithms. These include compression algorithms, cryptographic algorithms, N-boby simulation, biology matching pattern, index, and clustering and so on. Is a more comprehensive introduction to the relevant algorithms in the real world application of the book.)

关于关联向量机应用的最新文献！ 提出了一种核主元分析(KPCA)和关联向量机(RVM)相结合的组合建模方法。KPCA-RVM采用KPCA对原始自变量进行非线性变换并提取主成分,形成特征自变量 采用RVM,对KPCA变换后的样本数据进行回归建模,并根据模型的预报能力自适应的确定参与回归的最佳特征变量个数,消除冗余信息干扰,获得强非线性表达能力且预报性能良好的模型。并将KPCA-RVM应用于PTA装置对羧基苯甲醛(4-CBA)含量的软测量建模,结果表明该方法预测精度高于PCA-RVM和RVM。(A novel modeling method integrated KPCA with RVM was proposed. The kernel primary component analysis (KPCA) was employed to identify the principal components from the nonlinear transform data of independent variables, which were regarded as character variables. Regression between character variables and dependent variables was done based on RVM, and the optimal number of the character variables was adaptively determined according to the generalization performance of the regression model. Thus, KPCA-RVM meth...)

说明：  HTML完全手册,适合新手进阶!是学习HTML必备的书籍(HTML complete handbook for novice advanced! Is necessary to learn HTML books)