half_band_filter

AM系统进行设计、仿真（仿真用程序实现），要求用程序画出调频信号波形，调频信号振幅谱，解调信号(AM system design, simulation (simulation applications to achieve), asked to use the program draw the FM signal waveform, the amplitude spectrum of FM signal, demodulate the signal)

数据仓库维度建模工具箱，介绍如何进行数据仓库的维度建模。(The Data Warehouse Toolkit which introuce the dimension model foudation of data warehouse.)

在MATLAB环境中实现基于8QAM的信号调制解调(In the MATLAB environment 8QAM based on the signal modulation and demodulation)

该程序用于多普勒频率估计，可以估计多普勒模糊数与基带多普勒频率，从而得到解模糊情况下的多普勒频率，算法基于IEEE文章提出的wavelength diversity 算法所写的。(This programme is used to resolve the absolute doppler frequenc without doppler ambiguity.The algorithm is based on the wavelength diversity idea proposed by the IEEE paper.)

扩频通信中的gold序列特性仿真研究。(1) 利用MATLAB编程产生Gold序列族；给出每个序列的一个周期的输出； (2) 根据平衡Gold序列产生方法，产生Gold序列族中的所有平衡序列，每个序列给出一个周期的输出； (3) 计算(1)中Gold序列自相关函数，并画出它们的自相关曲线； (4) 计算(2)中Gold序列互相关函数，并画出其中某一序列与其他序列的互相关曲线； (Sequence Spread Spectrum Communication Simulation of gold. (A) the use of Gold sequences generated MATLAB programming given a cycle of each sequence output (2) The balance of Gold sequence generation method to produce Gold sequences of all balanced sequences, each sequence gives a cycle output (3) computing (1) Gold sequence autocorrelation function, and draw their autocorrelation curve (4) computing (2) Gold sequence cross-correlation function, and draw in which a sequence with other sequences cross-correlation curve )

先用gabor 小波滤波器,做特征提取，然后用支持向量机（SVM）做分类，来实现人脸检测.需要用matlab 2010 或更新的版本才能运行(the code is used for face detection.Firstly it use gabor wavelet filter for feature extraction,Secondly it use support vector machine (SVM）for classification.matlab 2010 required.)

说明：  采用蚁群算法解决TSP旅行商问题。先用dijkstra算法生成初始次优路径，再用蚁群算法搜索全局最优路径。(Ant colony algorithm is used to solve TSP traveling salesman problem. First, Dijkstra algorithm is used to generate the initial suboptimal path, and then ant colony algorithm is used to search the global optimal path.)

EMD的程序要用到matlab的时频工具箱 matlab的工具箱的安装步骤： 1.解压下载的文件包，将tft/mfile复制到matlab的toolbox文件夹下 2.建立搜索路径，matlab->file->Set Path->Add Folder ->选择mfile文件夹复制到matlab的toolbox的路径->save->close 3.测试是否建立搜索路径成功，在matlab命令窗口打入：which fmsin 返回的结果是你放mfile的正确路径说明建立搜索路径成功。此时就完成了安装工具包的工作。(EMD program to use when the frequency of matlab toolbox matlab toolbox installation steps: Unzip the downloaded file package, copy tft/mfile to the toolbox matlab file folder 2 established the search path, matlab-> file-> Set Path-> Add Folder -> Select mfile folder to the toolbox matlab path-> save-> close 3 test whether to establish a successful search path in matlab command window enter: which fmsin The result returned is the correct path you put mfile instructions to establish a successful search path. This time to complete the installation kit work.)

mark_minutia for fingerprint

This matlab code is to make understand the concept of space time block codes in mimo wireless communication system