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ZF1-phase-mag-nonilm-1f
相位衬度成像中由振幅得到相位的恢复算法，考虑到非现行因素，MATLAB运行环境(Phase-contrast imaging obtained by amplitude-phase restoration algorithm, taking into account the non-existing factors, MATLAB runtime environment)
- 2007-10-29 16:01:25下载
- 积分：1
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sun_position
一个相当好用的matlab函数，由美国国家可再生能源实验室科研人员设计，可以计算太阳的直射维度和方位角。只要输入时间、观测地点即可。 (This algorithm is based on numerical approximation of the exact equations.
The authors of the original paper state that this algorithm should be
precise at+/- 0.0003 degrees. I have compared it to NOAA solar table
(http://www.srrb.noaa.gov/highlights/sunrise/azel.html) and to USNO solar
table (http://aa.usno.navy.mil/data/docs/AltAz.html) and found very good
correspondance (up to the precision of those tables), except for large
zenith angle, where the refraction by the atmosphere is significant
(difference of about 1 degree). Note that in this code the correction
for refraction in the atmosphere as been implemented for a temperature
of 10C (283 kelvins) and a pressure of 1010 mbar. See the subfunction
un_topocentric_zenith_angle_calculation� for a possible modification
to explicitely model the effect of temperature and pressure as describe
in Reda & Andreas (2003). )
- 2010-01-07 14:37:02下载
- 积分：1
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fault-analysis
Matlab file for fault analysis power systems
- 2011-03-02 23:36:21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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pmsg
pmsg matlab simulink
- 2013-07-31 04:19:59下载
- 积分：1
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Final-Report
Gives Description of AES algorithm
- 2012-05-04 14:46:55下载
- 积分：1
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MATLAB
很详细的matlab使用教程，全书一共十一章。(Matlab use a very detailed tutorial book a total of eleven chapters.)
- 2011-07-31 18:41:15下载
- 积分：1
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MATLAB-The-neural-network-43-cases-
智能算法人工神经网络中，43个重要算法，用MATLAB编写，使用的是.doc 文档打开。(43 cases for intelligent algorithm the neural network using MATLAB ,and the document is .doc . )
- 2014-11-10 15:42:54下载
- 积分：1
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PAPER1
随机间距稀疏三元循环相位掩膜矩阵可压缩成像.pdf(Sparse Trinary Circulant Measurement Matrices with Random Spacing in Compressive Imaging)
- 2012-09-16 10:55:30下载
- 积分：1
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HVDCp_mian12
高压直流输电~经过本人测试可用~有需要的可以下载~(HVDC tests available ~ ~ After I need to download ~)
- 2011-11-16 20:59:48下载
- 积分：1
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