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CDate
主要编写的是一个是期类,包括日期的加法,减法,大于符号,小于符号的重载,和一些常用符号的重载,及日期类的一些常见运算(Is mainly written in a period of class, including the date of addition, subtraction, greater than symbol, less than symbols overloaded, and some common signs of overload, and the date of the class some common operations)
- 2011-01-15 18:51:46下载
- 积分:1
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CC_BPSK
通信系统的仿真,卷积码是纠错码的一种,可以用于数字电视,手机等通信领域,本例子给出了基于matlab的程序,卷积码BPSK调制。(Simulation of communication systems, convolutional code is an error-correcting code can be used for digital television, mobile phones and other communications, the examples given based on the matlab program convolution code BPSK modulation.)
- 2011-10-23 18:28:51下载
- 积分:1
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WPDV-HOP
粒子群算法与DVHOP算法的结合,有结果图(Combined with particle swarm optimization algorithm and DVHOP have results in Fig.)
- 2014-12-23 21:32:27下载
- 积分:1
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A计权代码
实现A计权 matlab一键实现 方便快捷(A weight matlab One key realization is convenient and quick)
- 2020-12-01 00:09:28下载
- 积分:1
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wavelets
基于MATLAB的图像压缩 能处理10:1的压缩功能 直接就能使用 (base on matlab image impress)
- 2009-05-12 11:06:49下载
- 积分:1
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narrow-band
该代码实现产生一个窄带随机信号,该信号的自相关函数及其功率谱图形。(The code generates a narrow-band random signal, the autocorrelation function and power spectrum graphics.)
- 2011-05-06 18:33:57下载
- 积分:1
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MATLAB
一、 牛顿-拉夫逊法概要
首先对一般的牛顿-拉夫逊法作一简单说明。已知一个变量X的函数
(4-6)
解此方程式时,由适当的近似值X(0)出发,根据 (4-7)
反复进行计算,当X(n)满足适当的收敛判定条件时就是(4-6)式的根。这样的方法就是所谓的牛顿-拉夫逊法。
式(4-7)就是取第n次近似解X(n)在曲线 上的点 处的切线与X轴的交点作下一次X(n+1)值的方法。参考图4-2(a)。在这一方法中为了能收敛于真解,初值X(0)的选取及函数f(X)必须满足适当的条件,如图4-2(b)所示的那种情况就不能收敛或收敛到别的根上去。
这一方法还可以做下面的解释,设第n次迭代得到的解与真值之差,即 的误差为 时,则
(4-8)
把 在 附近对 用泰勒级数展开
(4-9)
上式略去 以下的项
(4-10)
的误差可近似由上式计算出来
图4-2
(4-11)
比较式(4-7)和(4-11),可以看出牛顿-拉夫逊法的修正量和 的误差的一次项相等。
用同样的方法考虑,给出对n个变量 (:Because of the importance and complexity of power system, better algorithm and programme language
is very important . An interior point method based on the perturbed Karush2Kuhn2Tucker (KKT) condition is pre2
sented in this paper , where the method and process for the optimal power flow is treated through the Matlab’s
symbolic math toolbox and Mfunction is also presented. Using the symbolic code , it can improve the adaptability
of the programme dramatically. The advantage is that , what we need to do is change the model expression. We
can make use of the symbolic programme to check our programme while we write the Mfunctions. Using the Mat2
lab , we find the optimal solutions and calculate quickly and efficiently. It has proposed the powerful and unique
functions of Matlab in the optimization and calculation for power system.
Key words :power system symbolic calculation optimal power flow interior point method)
- 2020-07-08 16:38:56下载
- 积分:1
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ID3-face
MATLAB编写的基于决策树的ID3算法实现,模式识别,人脸识别。压缩包中包含两个源文件和测试图片,ID3源文件为主代码,fi为求熵函数。(MATLAB prepared based on the ID3 decision tree algorithm, pattern recognition, face recognition. Compressed package contains two source files and test images, ID3-based source code files, fi for the sake of entropy.)
- 2013-12-10 11:36:41下载
- 积分:1
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times_dynamically
此程序为发表过的一篇IEEE PIMRC 的paper的程序代码。是关于异构无线网络环境下的垂直切换接口激活时间的几个方案的仿真性能比较。(This RAR package contains a set of program code which was used in a published paper on in IEEE PIMRC. It is about the interface activition time in heterogeneous wireless networks. )
- 2009-02-28 19:32:57下载
- 积分:1
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shearlet
Analysis of Singularities and Edge Detection using the Shearlet Transform
- 2010-01-19 14:51:51下载
- 积分:1