liulihan

对录音信号集 中的某一语音，利用BATLAB设计一美尔例谱算法，并实现。 取信号集 中的一个语音信号：“xxxxxx”，将它作为输入的语音信号来为设计一个美尔倒谱算法，在该算法中，主要设计了以下环节： 1.读入一个语音信号；2.对这个信号归一化；3.对归一化的信号进行加窗处理（这里的矩形窗长度必须为257，重帧长64）；4.进行预加重处理，即通过一个高通滤波器： ；5进行512点的FFT；6.分别取模平方得到功率谱；7.在设计的mel滤波器组中，我采用了25个带通滤波器；8.将得到的功率谱信号通过mel滤波器组，得到相应的25个功率值；9.对这些功率值取自然对数；10.对这些值取离散作弦变换；11.将得到的值去掉直流分量，取其它值作为MFCC参数。 (Concentrated on recording a voice signal, using BATLAB designed Mayer cases spectral algorithm, and implementation. Get a voice signal signal focus: "xxxxxx", will it as input for the design of a voice signal to Mel Cepstrum algorithm in the algorithm, the main design of the following links: 1. Read a speech signal 2. On the signal normalized 3. Of the normalized windowed signal processing (here, rectangular window length must be 257, re-frame size 64) 4. For Pre-emphasis processing through a high-pass filter: 5 for 512 points of FFT 6. modulo square were obtained spectrum 7. in the design of mel filter banks, I use a 25 band-pass filter 8 . will be the power spectrum signal by mel filter bank, corresponding to the 25 power values 9. on the power to take the natural logarithm value 10. to take these values as strings of discrete transform 11. will be of value to out DC component, to take other values as MFCC parameters.)

Guide for time-frequency analysis in Matlab.

多天线通信系统（MIMO）仿真，包括卷积码，循环冗余校验，高斯信道，最大似然译码。(Multi-antenna communication system (MIMO) emulation, comprising convolutional codes, cyclic redundancy check, a Gaussian channel, the maximum likelihood decoding.)

文章A New Efficient Low-Complexity Scheme for Multi-Source Multi-Relay Cooperative Networks的仿真MATLAB代码，值得拥有。(This paper proposes a new efficient scheme for the combined use of cooperative diversity and multiuser diversity.)

积分计算中运用辛普森系列公式求函数的数值积分。(How to use Simpson series formula expression functions caltulating numerical intergration.)

This paper deals with the problem of speech enhancement when only a corrupted speech signal is available for processing. Kalman filtering is known as an effective speech enhancement technique, in which speech signal is usually modeled as autoregressive (AR) model and represented in the state-space domain.(This paper deals with the problem of speech enhancement when only a corrupted speech signa l is available for processing. Kalman filterin g is known as an effective speech enhancement te chnique. in which speech signal is usually modeled as aut oregressive (AR) model and represented in the s tate-space domain.)

kalman滤波 根据一实例进行kalman滤波的演示(kalman filting)

surf特征点检测，并实现两幅图像特征点的匹配(surf feature point detection, and the two images matching feature points)

线性分组码的简单实现, 包括生成矩阵,最小码字,二-十进制转换等功能(Simple linear block code to achieve, including the generator matrix, the smallest code word, two- decimal conversion function)

说明：  关于matlab信号分析与处理的相关程序，通过matlab来调用实现(On the matlab signal analysis and deal with the relevant procedures, through matlab to call the realization of)