TE

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.)

运用遗传算法（GA）实现Schaffer s F6 函数的优化(The use of genetic algorithms (GA) to optimize Schaffer s F6 function)

通信相关技术文档，关于能效方向，无线传输中的能耗控制(Communication related technical documents, about the direction of energy efficiency, energy consumption of wireless transmission control)

这是用COSTAS环在接收端提取载波的例子，可以用，特别适合初学者，理解COSTAS环的(This projiect is about costas and it can be used to get the receive frequency.)

matlab从入门到精通第4章书后源码对初学者很有帮助(matlab)

这是Matlab模糊逻辑工具箱函数，希望对大家有用。(This is the Matlab Fuzzy Logic Toolbox function, in the hope that useful to everyone.)

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 2007 小波分析理论 第十七章代码 帮助大家学习小波(MATLAB 2007 wavelet analysis theory Chapter XVII code to help you learn wavelet)

利用firpmord和firpm函数设计双带通滤波器，其指标为，第一带通指标：f =4kHz,f =5 kHz ,f =3.6 kHz ,f =5.4 kHz 第二带通指标：f =6kHz,f =7 kHz ,f =5.6 kHz ,f =7.4 kHz 通带衰耗A <3dB，阻带衰耗A >40dB，抽样频率f =20kHz。(Double belt pass filter using firpmord and firpm function design, for its indicators, through the first area index: f = 4 kHz, f = 5 kHz, f = 3.6 kHz, f = 5.4 kHz The second bandpass indicators: f = 6 kHz, f = 7 kHz, f = 5.6 kHz, f = 7.4 kHz Pass band attenuation A < 3 db, stop-band attenuation A > 40 db, f = 20 KHZ sampling frequency.)

滑模变结构控制光盘使用说明 1、所有仿真算法按章归类，光盘中的程序名与书中一一对应。 2、将光盘中的仿真程序拷入硬盘MATLAB运行的路径中，便可仿真运行。 3、本书算法在MATLAB 5.3版下运行成功，并适用于其他版本。 4、假如您对仿真程序有疑问，请及时通过 E-mail 与本人联系。 北京航空航天大学 刘金琨 E-mail 地址：ljk@buaa.edu.cn (Sliding Mode Control)