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LASheader
读取激光雷达点云数据的头文件数据块,将点云数据的基本信息记录在相应的变量中。(Read lidar point cloud data header file data block, the basic information of the point cloud data recorded in the corresponding variable.)
- 2013-05-13 15:42:45下载
- 积分:1
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cs_code
常见压缩感知算法汇总,L1,OMP,GP(Common used compressed sensing algorithm summary, L1, OMP, GP)
- 2012-12-09 19:08:40下载
- 积分:1
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Untitled
计算四层框架结构的地震反应,包括常用的地震波(Calculate the seismic response of the four-story frame structure, including the commonly used seismic waves)
- 2012-07-14 14:44:24下载
- 积分:1
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MATLAB
这是一本对于初学者来说不错的matlab教程(This is a book for beginners good matlab tutorial)
- 2012-12-04 10:04:39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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liziqun
关于粒子群算法的matlab的详细设计与实现,里面附带有详细的注释与说明(About particle swarm algorithm matlab detailed design and implementation, together with detailed comments and instructions)
- 2015-04-12 09:39:15下载
- 积分:1
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greatQPSK
说明: QPSK的Matlab实现
使用伪随机序列,低通滤波,可看图(QPSK Matlab using the pseudo-random sequence, low-pass filtering, flashcards)
- 2006-03-13 10:36:14下载
- 积分:1
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802.11a_OFDM_MATLAB
基于802.11的matlab仿真程序,做的相当的好。希望对大家有用。大家可以参考一下。(802.11 matlab-based simulation program, to do quite good. I hope for all of us useful. We can refer to.)
- 2007-12-14 11:07:57下载
- 积分:1
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tuihuo
遗传退火新的算法 采用matlab设计 在解决蚁群问题很有用(New genetic annealing algorithm uses ant colony matlab design problem solving is useful in)
- 2010-08-18 15:47:51下载
- 积分:1
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BPbasedPIDControl
利用MATLAB实现的基于BP算法的PID源程序(Use MATLAB to achieve BP algorithm based on PID source)
- 2007-12-22 20:50:41下载
- 积分:1