EFCM

本例用来说明复时谱在具有回声信号测量中的应用，这是数字信号处理的前沿课题之一。(In this case when used to describe the complex spectra with echo signal measurement, which is the forefront of digital signal processing one of the topics.)

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。 (matlab toolbox installation steps: 1. decompress the downloaded file package, which will tft/mfile matlab' s toolbox copy to folder 2. to establish the search path, matlab-> file-> Set Path-> Add Folder-> Select matlab mfile folder to the path of the toolbox-> save-> close 3. test whether the establishment of a successful search path, in the matlab command window enter: which fmsin return mfile result is you put the correct path to search path that create success. At this point the installation kit to complete the work.)

近年来随着移动互联网业务和物联网业务的兴起与 发展，用户对移动宽带业务需求越来越旺盛，对移动通信 网络的接入速率和质量要求也越来越高，原有基于码分多 址（CDMA）的3G及其增强技术未来将无法满足业务发展 需要，因此3GPP及3GPP2组织自2004年开始启动长期 演进（LTE）/空口演进（AIE，后改名为超移动宽带UMB）项 目，旨在通过引入一些关键技术，如正交频分复用（OFDM） 调制技术、多入多出（MIMO）技术、混合自动重传请求 （HARQ）、全IP扁平化架构及动态带宽分配等实现网络变 革，达到以下所述的网络性能，为移动宽带多媒体业务持 续发展提供技术保障。(Abstract:To meet the needs of mobile broadband services,LTE is being deployed and becoming ma－ tured,which includes key technologies such as OFDM,high-order modulation,HARQ,enhanced multi-antenna technologies,fast synchronization technologies,scalable control channel design,adap－ tive resource allocation,interference suppression technologies etc.Moreover,the discussion on LTE- Advanced has started,where technologies being considered includes aggregate multi-carrier,high－ er-order MIMO,smart relay,heterogeneous net－ work,multipoint collaboration as well as enhanced interference management.)

MATLAB图形用户界面设计 1 菜单设计 2 对话框设计 3 图形用户界面设计工具(MATLAB graphical user interface design a menu design 2 design 3 graphical user interface dialog design tool)

利用matlab构建蚁群算法自动获取图像的轮廓(Construction of ant colony algorithm using matlab image contours automatically get)

说明：  简要介绍了认知无线电中基于能量检测的频谱感知方法,在分析能量检测法原理和性能基础上,研究了噪声的不确定性对检测性能的影响. 仿真表明,能量检测法是一种简单、有效的频谱感知方法.(A brief introduction of cognitive radio spectrum sensing based on energy detection method, the analysis and performance of energy detection principle, based on the uncertainty of the noise effect on detection performance. Simulations show that the energy detection method is a simple, effective spectrum sensing method.)

基于matlab绘制滚动点阵字幕（跑马灯）.(Draw scrolling dot matrix subtitles (Marquee) based on matlab.)

用于绘制滚动轴承故障的频谱图和包络解谱图，从而判断轴承故障(Used to draw the rolling bearing fault frequency spectrum and spectral envelope solutions, in order to determine bearing failure)

基于matlab/simulink搭建的三电平逆变器仿真模型，控制算法为电压空间矢量控制（SVPWM），算法部分使用m语言编写，带有简单注释，配合算法说明，应该比较好懂。模型带中点电压平衡处理，但是效果一般，大家可以在此模型基础上修改。欢迎交流讨论。(Three-level inverter simulation model matlab/simulink structures based control algorithms for the voltage space vector control (SVPWM), part of the algorithm using the m language, with a simple comment, with the algorithm description, it should be relatively easy to understand. Models with the midpoint voltage balanced, but the general effect, you can modify the model basis. Welcome exchanges and discussions.)

应用matlab 分析机械力学中的工程振动问题,实例1。(Matlab applications in the engineering analysis of mechanical vibration of the mechanical problem.)