Audio-analyze

数值微分精度及步长的关系，截断误差和舍入误差，体会误差对结果的影响，用算法1 和算法2 分别得到的结果进行比较，由Taylor公式可得到两种算法的截断误差(Accuracy of numerical differentiation and the relationship between step length, truncation error and rounding error, the error on the results of experience with algorithm 1 and algorithm 2 respectively, to compare the results obtained by the Taylor formula for the truncation error of two algorithms available)

神经网络中的小波分析。包括很多m文件，可以很好的学习神经网络(nerual network)

图1为均衡带限信号所引起失真的横向或格型自适应均衡器(其中横向FIR系统长M=11), 系统输入是取值为±1的随机序列，其均值为零；参考信号；信道具有脉冲响应： 式中用来控制信道的幅度失真(W = 2～4, 如取W = 2.9,3.1,3.3,3.5等)，且信道受到均值为零、方差(相当于信噪比为30dB)的高斯白噪声的干扰。试比较基于下列几种算法的自适应均衡器在不同信道失真、不同噪声干扰下的收敛情况(对应于每一种情况,在同一坐标下画出其学习曲线): 1）横向/格-梯型结构LMS算法 2）横向/格-梯型结构RLS算法 并分析其结果。(Figure 1 is a band-limited signal caused balanced horizontal or lattice distortion adaptive equalizer (FIR system in which the lateral length M = 11), the system input is the value of a random sequence of ± 1, mean zero reference signal channel has impulse response: Wherein the amplitude of the distortion for the control channel (W = 2 ~ 4, and so as to take W = 2.9,3.1,3.3,3.5), and subjected to a channel with zero mean and variance (equivalent SNR is 30dB) Gaussian white noise. Compare the following types of algorithm-based adaptive equalizer in a different channel distortion, the convergence of different noise interference (corresponding to each situation, draw their learning curve in the same coordinate): 1) landscape/grid- LMS algorithm ladder structure 2) landscape/grid- RLS algorithm ladder structure And analyze the results.)

MIMO技术中SIM_OFDM+BPSK(OFDM信道BPSK调制）(MIMO technology SIM_OFDM+BPSK (OFDM channel BPSK modulation))

说明：  基于MATLAB的有限元分析工具箱，文件名即为函数运行名，其中包含了结构分析中需要的梁元、杆元函数，将工具箱解压到MATLAB工作目录后在路径中添加该文件夹路径即可。(The finite element analysis based on MATLAB toolbox, the file name shall be the function to run names, including the structure of the beam elements that need, member element function, MATLAB toolbox to extract working directory in the path to add the folder path can.)

说明：  电机控制回路的simulink模拟。使用二阶速度反馈控制，并使用电流保护。(Motor control loop simulation simulink. The use of second-order velocity feedback control and the use of current protection.)

自学Matlab必备的个小程序代码，里面有很多个，需要的下载，还有几个压缩包随后上传，最后一个压缩包(Small program code, which must self-Matlab need to download, there are several compressed packets are then uploaded last a compressed package)

这是关于智能天线的自适应算法的MATLAB代码(This is the smart antenna on the adaptive algorithm of MATLAB code)

应用C/C++语言编写灰度图像霍夫曼编码的程序(Application of C/C++ language coding gray-scale image of the Hoffman process)

matlab实现的JPEG图像压缩程序 可成功运行(matlab implementation of JPEG image compression program which can be run successfully)