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huidu
用MATLAB编写的图像灰度处理程序，有不足之处，还望大家批评指正。(Prepared using MATLAB image processing, there are deficiencies, we hope that criticism.)
- 2008-12-14 09:14:33下载
- 积分：1
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Vectors
this is a code to use for speech recognition, it has another code instead of this code, call me for more detail
- 2010-02-05 00:39:08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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shengyinxinhaodegonglvpufenxi
声音信号的功率谱分析。。。。。。。。。。。。。。(Spectral analysis of the power of the sound signal.)
- 2014-09-18 09:51:01下载
- 积分：1
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scatter
可以用来计算岩石的频散效应，现在还只是单裂纹二维情况(Rocks can be used to calculate the frequency dispersion, it is only a single two-dimensional crack)
- 2011-09-28 17:09:05下载
- 积分：1
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Wheel-Mobile-Robot(WMR)
matlab file og the ronol of asia
- 2014-11-09 04:47:38下载
- 积分：1
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Functions
data converters by maloberti
- 2013-04-19 15:13:51下载
- 积分：1
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DMC
DMC的主要特征是预测模型采用阶跃响应特性建模 设计过程中固定格式:用二次型目标函数决定
控制量最优值增量序列 自校正动态矩阵控制等多种算法 参数调整:用改变二次型目标函数中的权系数
阵来实现.(With the research of dynamic characteristic of electrical resistance furnace and the imp rovements of
MPC in detail, the effects between DMC and P ID in the temperature control system of electrical resistance furnace
was compared. The results confirmed that DMC not only overcomes the inaccuracy of the models and the
variability of the parameters, but also achieves better performance index than P ID in accordance with the
expectation of given curve.)
- 2013-05-06 13:23:32下载
- 积分：1
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FIXED-POINT-METHOD
固定点法，定点技术迭代及求解算法，MATLAB实现，大家可以参考一下(Fixed point method, fixed technology and iterative algorithm, MATLAB implementation, we can refer to)
- 2015-01-26 10:16:54下载
- 积分：1
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shuizishuiyin
matlab 数字水印的处理，可实现文件的加密处理(matlab digital watermark processing, encrypted files can be realized)
- 2010-08-17 11:24:33下载
- 积分：1
