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SBTC
MIMO系统的各种空时分组码仿真
包括2*2 alamouti编码,1/2速率的空时分组码(MIMO system simulation of space-time block codes, including 2* 2 alamouti coding, 1/2 the rate of space-time block codes)
- 2007-11-26 17:04:33下载
- 积分:1
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bulang
用matlab模拟布朗运动,可输入温度,来估计在该温度下布朗运动的程度(Brownian motion simulation using matlab, you can enter the temperature, to estimate the temperature in the extent of Brownian motion)
- 2021-03-21 21:09:16下载
- 积分:1
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wavfft
describe fft from wav file using matlab
- 2011-01-30 18:44:25下载
- 积分:1
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emwork3_1_1
地面上方单导线传输线的单位长度电容的矩量法求解(Ground above the single-wire transmission line capacitance per unit length of the moment method)
- 2010-06-01 12:20:54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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2009090416465604
是四层小波分解的图像融合算法 希望对大家的学习有所帮助(Is the four wavelet decomposition of image fusion hope to help the learning)
- 2010-05-21 10:28:41下载
- 积分:1
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Matlab-Linear-FM-Time-freq-analysis
本文就着重比较Radon-Wigner变换、离散Chirp-Fourier变换等方法的优劣。(This article on a comparison of the Radon-Wigner transformation, the advantages and disadvantages of the discrete Chirp-Fourier transform method.)
- 2013-04-29 15:20:55下载
- 积分:1
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stcylinder_rcs
这是计算stchlinder的散射程序,对研究电磁散射的同行很有用(This is the calculation of the scattering stchlinder procedures, the study of electromagnetic scattering useful peer)
- 2009-03-28 09:29:31下载
- 积分:1
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cyclostationary_toolbox
一些循环平稳子程序,用于对循环平稳信号处理(Some Cyclostationary Subroutine, for cyclostationary signal processing)
- 2021-04-19 22:38:50下载
- 积分:1
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GaborKernel
i want source code for gabor filter to remove noise in preprocessing step of fingerprint in matlab
- 2011-11-17 17:32:34下载
- 积分:1