Desktop

Simulink Design For Sound AutoScaling and Curve Fitting

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)

遗传算法和最速下降法的比较及其各自的优缺点(Genetic algorithms and compare the steepest descent method and their respective advantages and disadvantages)

进行迭代仿真，实现耦合方程的求解。通过有限次的迭代，来实现无穷次的仿真。(Iterative simulation, to solve the coupling equations。Through the finite iteration, to realize the simulation of infinite time.)

Matlab的编程指南(下册),常用的Matlab入门教程,比较详细非常好用的哈!(Matlab programming guide, commonly used Matlab Tutorial, detail very easy to use Ha!)

该文件是讲解matlab语言的书，可以让学习matlab语言的学者得到很快的提升，从简单入深。(The document is the language of the book on matlab, matlab language learning can be quickly and scholars of the upgrade, from the simple to the deep.)

单相信号的锁相功能实现（PLL），自动跟踪单相电网信号。(Single-phase signalof thelock-infunctions to achieve(PLL),automatic trackingof single-phasepowersignals.)

Three phase full wave rectifier simulation using matlab, simulink

use matlab obj detection

Vertex Component Analysis: A Fast Algorithm to Unmix Hyperspectral Data(This paper presents a new method for unsupervised endmember extraction from hyperspectral data, termed vertex component analysis (VCA).)