mean

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.)

matlab smulation script of dc motors an behavior of this machines

频谱细化分析MATLAB程序，ZOOM FFT分析，频谱放大功能( Zoom-FFT)

光伏逆变仿真，控制光伏并网的电压电流和谐波含量(Grid-connected inverter simulation, control photovoltaic current and voltage harmonic content)

说明：  能够实现高斯过程回归，利用拟牛顿法和共轭梯度法对超参数进行优化，经实践非常好用，可联系13129944992(It can realize Gaussian process regression and optimize super parameters by using quasi Newton method and conjugate gradient method. It is very easy to use in practice and can contact 13129944992)

这是一个非常好的关于OFDM的英文文章，它是国外的博士论文，对于想了解整个OFDM的朋友来说，可以了解到许多中文文章所没有的知识。(This is a very good article in English on OFDM, which is the doctoral thesis abroad, who want to understand the overall OFDM' s friends, you can understand that many Chinese do not have knowledge of the article.)

Grey Image to Color Image Conversion

说明：  MATLAB教程，叫你怎样使用简单的MATLAB程序和算法(MATLAB tutorial tell you how to use a simple MATLAB program and algorithms)

回声隐藏利用人耳听觉系统的时域掩蔽特性，在载体数据的环境特性中嵌入水印信息(Echo hiding ear hearing system of time domain masking properties, environmental characteristics of the data in the carrier embedded watermark )

matlab源代码，很适合大家的学习，对大家很有帮助。(matlab source code, it is suitable for everyone to learn, very helpful to everyone.)