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FTF
快速横向滤波器FTF用于系统参数估计,在matlab平台上开发GUI,用c语言编写,嵌套在matlab中。(FTF rapid horizontal filter system for parameter estimation, in Matlab platform GUI development, c prepared with language, which nested in Matlab.)
- 2020-12-10 23:19:18下载
- 积分:1
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FSK
利用MATLAB实现对频率调制信号时域和频域的仿真,采样点为10240。(Frequency modulation signal)
- 2012-11-02 10:10:00下载
- 积分:1
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fwdcdmafinal
CDMA transceiver Code in MATLAB
- 2014-01-16 00:44:55下载
- 积分:1
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奇异值差分理论 matlab SVD
奇异值差分理论,对输入的信号矩阵化,并对矩阵进行奇异值分解,完成对信号的分析和处理(Singular value differential theory, the matrix of the input signal, and the matrix singular value decomposition, the completion of signal analysis and processing)
- 2016-08-22 17:23:00下载
- 积分:1
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dtgz
说明: matlab编写的动态跟踪程序,可用USB摄像头来实现(Dynamic tracking program written in matlab)
- 2010-03-18 12:13:52下载
- 积分:1
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first_year
for beginers who to learn matlab
- 2010-09-01 02:54:45下载
- 积分:1
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fdtd1D
一维FDTD计算电磁散射的MATLAB源码(1D-FDTD code for the simulation of electromagnetic scattering problems)
- 2010-09-27 21:41:08下载
- 积分:1
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mallat
离散小波变换 mallat算法实现 小波变换(DWT wavelet transform algorithm mallat)
- 2015-04-18 11:14:29下载
- 积分:1
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ricegen
generates a fading signal where a direct (LOS) component is present Rician channel
- 2010-03-04 04:39:12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