facedete

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)

diff_Robot model, no slip equation of motion

说明：  最大似然译码的matalb仿真程序，皆为小程序浅显易懂(Maximum likelihood decoding matalb emulator)

Transcoder implementation

俄罗斯方块matlab GUI平台的例程，自带程序说明(Tetris routines matlab GUI platform, comes with the program description)

以Matlab与C语言、Visual Basic、Excel为核心语言，配有大量的代码实例，系统地介绍了常用的代码优化方法和功能扩展程序(In Matlab and C language, Visual Basic, Excel as the core language,配有大量code example, the system commonly used to introduce a code optimization method and function of the expansion process)

实现控制仿真，利用亚当姆斯法，对于阶跃响应的数字仿真(realise control simulink)

Matlab programs for turbo equalization. Requires Matlab Version 7.

说明：  matlab仿真延迟相乘法估计调制信号符号速率(matlab simulation multiplication delayed modulation signal symbol rate is estimated)

A Study of Bias Correction Methods for Enhancing Median Edge Detector Prediction