VtE

matlab调用ansys的例子，适合初学者。(matlab call ansys example, suitable for beginners.)

传统的宽带信号中抑制正弦干扰的方法是采用陷波器(notch filter),为此需要精确知道干扰正弦的频率.然而当干扰正弦频率是缓慢变化时,且选频率特性要求十分尖锐时,则最好采用自适应噪声抵消的方法.下图是用一个二阶FIR的LMS自适应滤波器消除正弦干扰的一个方案。该代码实现了以下功能： 1) 借助MATLAB画出了滤波器的误差性能曲面和误差性能曲面的等值曲线； 2） 给出了最陡下降法以及LMS算法的计算公式； 3） 用MATLAB产生了方差为0.05, 均值为0白噪音S(n)，并画出某次采样得到的波形； 4） 根据 2）中的公式，并利用 3）中产生的S(n)，在 1）中的误差性能曲面的等值曲线上叠加画出了采用最陡下降法以及LMS法时H(n)的在叠代过程中的轨迹曲线； 5）用MATLAB计算并画出了LMS法时误差随时间n的变化曲线（对应S(n)的某一次的一次实现）和e(n)波形； 6）在 1）中的误差性能曲面的等值曲线上，叠加画出采用LMS法得到的100次实验中的H(n)的平均值的轨迹曲线； 7）最终对结果进行了分析，具体见压缩包的word文档。 (Wideband signal in the conventional sinusoidal interference suppression method is the use notch filter (notch filter), this requires precise knowledge of the frequency of a sinusoidal interference . However, when the interference frequency sinusoidal changes slowly , and the selected frequency characteristic requirements are very sharp , then best use of adaptive noise cancellation method . following figure is a second-order FIR LMS adaptive filter to eliminate a program sinusoidal interference . The code implements the following functions:   A ) draw with MATLAB error performance of the filter surface and the surface contour error performance curve 2 ) gives the steepest descent method and the LMS algorithm formula 3 ) generated using MATLAB variance of 0.05 with a mean of 0 white noise S (n), and draw a particular sampling waveform 4 ) based on 2 ) of the formula , and use 3 ) generated in S (n), in a ) the error performance curves superimposed on the surface contour pl)

grey model

遗传算法的设计与实现 y=x.*sin(10*pi*x)+2 ( Genetic Algorithm Design and Implementation y=x.*sin(10*pi*x)+2 )

对图像进行离散余弦变化处理，了解余弦变化系数以及余弦变化后回复图像与原图的区别(After the change of image processing discrete cosine understand cosine cosine coefficient of variation and difference with the original image Reply)

NAKAGAMI FADING COEFFICIENT

一个MATLAB 的图像处理和灰度变换的程序，这个是老师留的作业，里面有详细的讲解过程，非常的详细，对做图像的朋友非常有用(A MATLAB image processing and gray-scale transformation program, this is the teacher to stay the operation, which explain in detail the process, very detailed images of a friend is very useful to do)

生成一个正弦信号，并加入白噪声，得到正弦信号以及白噪声的混合信号，通过低通滤波器对白噪声进行处理(generate a sinusoidal signal, and add white noise, sinusoidal signal to be white noise and mixed-signal, through low-pass filter white noise processing)

这里是一些有关蚁群算法的MATLAB代码，希望对大家有帮助(Here are some of the ant colony algorithm MATLAB code, we want to help)

Forstner算子，摄影测量重要算子，用于提取兴趣点(Forstner operator, photogrammetry important operator, used for extracting points of interest)