versapro 2.04 standard

改进papr，对于改进papr的程序给了完整的代码，具有参考价值(Improved papr, for improving the procedures papr)

voice transformation good algo

这是一个基于空时分组编码的MIMO_OFDM通信系统的仿真设计。 此系统包括QPSK调制解调，IFFT调制，空时编解码，基于训 练符号的信道估计等通信模块。(This is a simulation design of a MIMO_OFDM communication system based on space time block coding. The system includes QPSK modulation and demodulation, IFFT modulation, space-time codec, and training based on training. A communication module, such as the channel estimation of a symbol.)

程序使用了自相关性和互相关性较好的gold码作为扩频序列，直扩，扩频增益设置为31，模拟用户数为4(Program uses a self-correlation and cross-correlation of the better gold code as spreading sequence, direct expansion, spreading gain is set to 31 to simulate the number of users of 4)

说明：  数据辅助定时同步算法T.Schmidl 和D.Cox,Park&Cheon和minn(Data-Assisted Timing Synchronization Algorithms T.Schmidl and D.Cox, Park&Cheon and Minn)

Systemview动态系统仿真软件是为方便大家轻松的利用计算机作为工具，以实现设计和仿真工作。它特别适合于无线电话（GSM,CDMA,FDMA,TDMA)和无绳电话，寻呼，机和调制解调器与卫星通信（GPS,DBS,LEOS)设计。能够仿真( 等）DSP结构，进行各种时域和频域分析和谱分析。(Systemview dynamic system simulation software is easy for us to facilitate the use of computers as a tool to achieve the design and simulation work. It is especially suitable for wireless phone (GSM, CDMA, FDMA, TDMA) and cordless telephones, paging, machine and modem and satellite communication (GPS, DBS, LEOS) design. To simulation (and other) DSP structure, various time domain and frequency domain analysis and spectral analysis.)

通过设置串口的波特率、起始位、检验位等参数，进行FPGA的串口通讯(By setting the baud rate, the starting bit, the test bit and other parameters of the serial port, the serial communication of FPGA is carried out)

说明：  通过几个图文示例，详细说明了如何在matlab上通过虚拟串口发送和接受数据(Through a few graphic examples, detailed description of how to send and receive data through virtual serial port on matlab)

说明：  C语言 注释清晰 可运行 BM算法编码译码 BCH(C BM encode decode BCH)

这是一个实现CS的QQ，并带有链接数据库的功能，主要功能有注册，群聊，私聊等(This is a realization of C S of the QQ, and with a link to a database functions, the main function of registration, group chat, private chat, etc.)