qouging-V4.1

波束形成算法是智能天线研究中最核心的内容。波束形成算法根据基于的对象不同可以分为基于方向估计的自适应算法，基于训练信号或者参考信号的方法和基于信号结构的波束形成方法；根据是否需要发射参考信号，分为非盲算法和盲算法。(The beamforming algorithm is the most important content in the research of smart antenna. Based on the beamforming algorithm according to the different objects can be divided into adaptive algorithm based on direction estimation method based on a training signal, or reference signal and signal beam forming method based on structure; according to whether to send the reference signal, divided into non blind algorithms and blind algorithms.)

说明：  详述LDPC码，有DVB_S2中LDPC编解码分析等以及KDH文档。(LDPC code in detail, there are DVB_S2 in the analysis of LDPC codec and KDH document.)

整个OFDM的matlab仿真代码，使用16qam调制，还有word的文档，讲解很细(The OFDM matlab simulation code, the use of 16 qam modulation, and word document, very fine )

BPSK调制，采用（15,11）汉明码对信号编码；然后对信号加噪，解调，译码。(BPSK modulation (15,11) Hamming code signal encoding then added noise to the signal, demodulation, decoding.)

C-Type Filter Design Based on Power-Factor Correction for 12-pulse HVDC Converters

这是一个C语言实现的一阶到六阶的IIR滤波器程序,用于TI TMS320C5416 Texas 工具(This is a C-language-implemented first-to-sixth-order IIR filter program for the TI TMS320C5416 Texas tool)

VC6连接Redis服务器示例，系统:win32 xp sp3，编译器:VC6，无依赖(VC6 connect Redis server example, the system: win32 xp sp3, compiler: VC6, no reliance)

利用C++实现的一个即时通讯系统的客户端。传输层采用的是TCP协议。这是本科时候的毕业设计，最后评定为优，希望对一些朋友能有所帮助。(The use of C++ implementation of an instant messaging system client. Transport layer protocol used is TCP. This is the time of undergraduate graduation project, and finally classified as gifted, in the hope that some of my friends can be helpful.)

ofdm仿真程序有关信道传输中的多径效应，多普勒频移，时延扩展(OFDM simulation program on the transmission channel of multi-path effects, Doppler frequency shift, delay spread)

说明：  在MIMO系统里 2发2收天线，采用Alamouti发案编码的无线传输系统在瑞瑞丽平衰落信道下的误码率性能仿真，系统采用调制方式为QPSK。(MIMO 2 send and 2 receive antenna ,)