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channel coding, linear block coding

说明：  微弱信号的提取检测和分析 用matlab实现的源代码 首先计算输入信号的均值、均方值、方差、频谱及功率谱密度，确定输入信号中包含着有用信号。然后提取有用信号，并要求计算提取信号的均值、均方值、方差、概率密度、频谱及功率谱密度，并画出曲线(The extraction of weak signal detection and analysis)

图像处理Matlab源代码，包括二维离散余弦变换的图像压缩，采用灰度变换的方法增强图像的对比度，直方图均匀化，模拟图像受高斯白噪声和椒盐噪声的影响。 (Including discrete cosine transform image compression, the use of gray-scale transformation method to enhance image contrast, histogram equalization, analog image by Gauss white noise and salt and pepper noise.)

利用小波分解的方法进行语音信号的降噪处理，适用于语音增强领域(The wavelet decomposition method is used to denoise the speech signal, which is suitable for the field of speech enhancement.)

说明：  使用3种方法（卡尔曼，巴特沃斯，小波）处理肌电信号，得出了关于那一种动作的各快肌肉参与情况。(The three methods (Kalman, Butterworth, Wavelet) were used to process the EMG signal, and the fast muscle involvement of that type of action was obtained.)

DDC_DUC Xilinx CDMA2000 CPRI xapp1018_cdma2000

basically a trial run to get back into the mode of things. This is a simple MCM communications system. The code is pretty self-explanatory

时域有限差分方法 1维 输出振幅和相位 犹他州大学程序(fdtd method 1D output amplitude and phase www.ece.utah.edu)

本文分析了语音数字信号的采集来源以及其预处理。通过实例，利用Matlab对语音信号进行时频变换与分析，同时构造一个固定频率的干扰信号，对两个信号进行合成，设计数字滤波器，实现对语音信号的F IR、IIR滤波处理，最后在时域和频域中对信号进行分析比较。(This paper analyzes the sources of voice digital signal acquisition and its pretreatment. By example, voice signals using Matlab time-frequency transform and analysis, and construct a fixed-frequency interference signals, the two signal synthesis, design digital filters to realize the speech signal F IR, IIR filtering, and finally time domain and frequency domain signal analysis and comparison.)

中间包括好几个希尔伯特黄的算法，基于MATLAB软件下运行。有emd-visu,emd-separation,emd-sampling,emd-n,里面还有hht 其他的内容，完整，经过测试。做信息处理，Fourier 是个万金油。HHT的优势所在，HHT是一个超adaptive的方法。