fangben_v28

n dim integaral with montecarlo method

为研究局部阴影效应对光伏发电系统的影响，首先建立了光伏阵列工程数学模型，分析局部阴影条件下光伏阵列的输出特性。为了便于工程分析，该文利用PVSYST软件分析比较单晶硅、多晶硅和薄膜电池等3种不同材料光伏电池在局部阴影条件卜的输出功率，为工程应用提供了良好的指导作用。最后提出了几种提高光伏阵列抗局部阴影能力的措施厂 (To investigate the effect of local shading effects on photovoltaic systems, photovoltaic array project was first established mathematical model to analyze the output characteristics under conditions of partial shading of the PV array. In order to facilitate engineering analysis, this paper use PVSYST software analysis and comparison monocrystalline, polycrystalline and thin film batteries, photovoltaic cells of three different materials in partial shade conditions Bu output power for engineering applications provide a good guide. Finally, several photovoltaic arrays to improve the ability to measure resistance to partial shade plant)

共轭梯度法的matlab实现，给出任意的一个对称矩阵，可通过较小的迭代次数得到所要求精度的数值解(Conjugate gradient method matlab to achieve, given any symmetric matrix by a smaller number of iterations to obtain the required accuracy of the numerical solution)

gpc law for matlab and gpc calculated

基于W-SVD数字图像水印的源代码，还有用matlab程序编写的界面GUI，可以用来做科研实训或者参考着做毕设。(W-SVD digital image watermarking based on the source code, the interface of GUI with the MATLAB programming, can be used to do scientific research training or reference to do complete set.)

脉冲响应不变法设计巴特沃斯数字低通滤波器(Impulse response invariant method design Butterworth digital low-pass filter)

截取一段音频信号作为输入信号，分别通过低通，高通和带通滤波器，比较滤波效果。(Interception of an audio signal as an input signal, respectively, through a low pass, high pass and band-pass filter, compare filtering effect.)

说明：  多边形平板高频散射,采用物理光学发求解多边形平板的雷达散射截面(Polygonal planar high frequency scattering, Using physical optics to solve the radar cross section of a polygonal flat plate)

本实验指导书是配合计算机仿真技术的教学，为学生做实验提供的指导性材料。为便于学习，书中对各种仿真方法均备有范例程序，所有程序均采用MATLAB语言编写，并上机调试通过。(This study guide book is in line with the teaching of computer simulation technology for students to experiment with materials to provide guidance. To facilitate learning, in the book are available in a variety of simulation examples of procedures, all procedures are used MATLAB language, and debugging through the machine.)

matlab中解调谱的示例程序，操作简单，可直接复制，便于调用。(spectrum demodulation in matlab sample program, simple operation, can be directly copied, easy call.)