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music
频率估计的根MUSIC方法.y ->数据向量 n -> 模型阶数 m -> 矩阵阶数 w <- 频率谱估计(The Root MUSIC method for frequency estimation.)
- 2013-12-05 13:14:17下载
- 积分:1
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matlab100examples
matlab实用程序百例。。。要的看看。。。。。。。。。(100 cases of matlab utility. . . Want to see. . . . . . . . .)
- 2009-04-14 11:12:50下载
- 积分:1
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QPSK
QPSK系统的simulink仿真,包括PCM编码、误码率统计以及星座图显示(Simulink simulation of the QPSK system, including PCM coding, bit error rate statistics and the constellation graph display)
- 2015-01-21 15:22:25下载
- 积分:1
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glcqpsk
QPSK调制的程序,可以正确运行,对初学者很有帮助(QPSK modulation procedure can correct operation, useful for beginners)
- 2006-05-31 14:57:28下载
- 积分:1
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FCM-Clustering
这是一个完整实现了模糊聚类的软件包,包中有多个子程序(this is a package of fuzzy clustering algorithm, containing multiple sub-algorithm in it.)
- 2012-04-19 19:01:06下载
- 积分:1
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TCP
工业机械臂末端TCP标定代码 含有位置和姿态的标定 matlab版本 方便易用 精度较高(Facilitate industrial arm end TCP calibration codes including the position and orientation of the calibration matlab version of high precision and easy to use)
- 2015-11-22 18:24:59下载
- 积分:1
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irid_fod
A sample code on fractional order derivatives
- 2021-01-19 04:18:43下载
- 积分:1
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Bayes
Bayes分类器算法设计的matlab码 注释详细
大家一起学习啊(Bayes classifier algorithm design of the matlab code comment in detail with everyone to learn ah)
- 2010-01-07 15:09:25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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极化码极化分布
仿真极化码在不同码长下的极化效果图,包括散点图和柱状图(polar code simulation)
- 2018-01-22 20:00:13下载
- 积分:1