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downsample
用matlab实现多幅图片的downsample
把图片变成低分辨率的小图片。(Using matlab implementation of the downsample pictures put into a low-resolution picture of the small picture.)
- 2009-03-25 10:18:06下载
- 积分：1
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mainn
用于绘制滚动轴承故障的频谱图和包络解谱图，从而判断轴承故障(Used to draw the rolling bearing fault frequency spectrum and spectral envelope solutions, in order to determine bearing failure)
- 2021-01-20 16:58:41下载
- 积分：1
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1_BER_SER_AWGN_fading_help
Matlab about 1_BER_SER_AWGN_fading_
- 2020-10-31 04:09:55下载
- 积分：1
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MATLABcode
MATLAB用户应用程序编程接口方面书籍，讲解详细，是一本好书。(MATLAB user interface application programming books, explain in detail is a good book.)
- 2008-12-24 15:02:50下载
- 积分：1
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fzy2
very valuable material for matlab developers
- 2008-12-12 11:56:02下载
- 积分：1
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modulation
bpsk, qpsk, msk,gmsk 调制解调仿真。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。(bpsk, qpsk, msk,gmsk modulation simulating)
- 2011-01-05 16:34:01下载
- 积分：1
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xinjiaquan
这是加权网络中节点强度和权重都是均匀分布的模型。(This is a node-weighted network strength and weight of the model are uniformly distributed.)
- 2009-07-09 11:55:59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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nihe
.NET与Matlab结合 —— 最小二乘法直线拟合（C#）(. NET integration with Matlab- least squares fitting a straight line (C#))
- 2011-09-13 16:46:00下载
- 积分：1
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58627
The following Matlab project contains the source code and Matlab examples used for orthogonal least squares algorithms for sparse signal reconstruction. Added after previous version ols_gp: Sparse reconstruction by Orthogonal Least Squares followed by Gradient Pursuit ols_nomp: Sparse reconstruction by Orthogonal Least Squares followed by Approximate Conjugate Gradient Pursuit ols_pcgp: Sparse reconstruction by Orthogonal Least Squares followed by Partial Conjugate Gradient Pursuit
The source code and files included in this project are listed in the project files section, please make sure whether the listed source code meet your needs there.
- 2014-09-04 00:02:31下载
- 积分：1
