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DPD
对数字预失真技术的讲解，挺有用的！！！！(Digital pre-distortion technology, explained, winter ridge used)
- 2010-08-19 15:11:34下载
- 积分：1
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layout_weight
安卓当中的layout_weight用法,一道经典的面试题(Andrews among layout_weight usage, a classic face questions)
- 2015-03-23 11:20:29下载
- 积分：1
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PMSM-control
永磁同步电动机调速系统由pmsm月吸逆变器、永磁同步电动机和机械负载三部分组成,每个部分都具有非线性特性和参数的不确定性。因为PWM逆变器死区的存在,在低速以及调制频率很高时,死区特性将会导致逆变器输出电压包含很大的谐波分量,使得电机转矩发生很大的
脉动,甚至导致系统的不稳定。有些学者采用变结构控制降低死区的影响,由于变结构控制本身具有抖振现象,这使得所设计的控制器在到达滑模平面之前很容易激起系统的未建模动态,导致系统无法克服逆变器死区的影响。
(A PMSM drive sysetm Consisst of ade-ac
inverter,PMSM and sorne meehan iealload.All hteree
eom Ponenst of hte syset maerhca racterizedb ymodel swhich
aernon linear and eonati nullkllown Parameetrs.
)
- 2017-05-07 16:39:40下载
- 积分：1
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KPCA_RVM
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...)
- 2020-06-29 05:40:01下载
- 积分：1
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Power-System-Analysis---John-J.-Grainger-ebook
Power System Analysis - John J. Grainger ebook
- 2021-01-07 16:38:53下载
- 积分：1
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固体中的超声波
板波资料和书，里面有瑞利波和lamb波的相关资料(Plate wave data and books)
- 2017-12-10 21:53:54下载
- 积分：1
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tfrspwv
说明： 继wvd后的一个改进型时频分析工具，在时间分割上，值得借鉴(wvd following an improved version of the time-frequency analysis tool, the time-sharing, worth learning)
- 2021-04-27 22:38:44下载
- 积分：1
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BeginningSQL
This one of the good tutorial about SQL for beginners.
- 2010-08-16 19:17:56下载
- 积分：1
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Simple_-_Lcd_-_USART_-_COUNTER-TIMER
simple lcd display of pulse counter LPC1768
- 2017-08-10 13:18:41下载
- 积分：1
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10.1.1.104.8806
In many areas of commerce, government, academia, and hospitals, large collections of digital images are
being created. Many of these collections are the product of digitizing existing collections of analogue photographs,
diagrams, drawings, paintings, and prints. Usually, the only way of searching these collections
was by keyword indexing, or simply by browsing. Digital images databases however, open the way to
content-based searching. In this paper we survey some technical aspects of current content-based image
retrieval systems.
- 2011-06-25 11:35:51下载
- 积分：1
