modulation

基于systemview平台，对（7,4）BCH码进行编码和译码，最后得出译码后消息和原消息的BER(Based systemview platform, (7,4) BCH code for encoding and decoding, the conclusion that the BER of the decoded message and the original message)

mimo-ofdm系统基于梳状导频的信道估计，使用最小二乘法，线性内插。(mimo- ofdm system based on comb-Pilot channel estimation, the use of least squares linear interpolation.)

CDMA技术原理与发展，以及MATLAB仿真源代码(Principle and Development of CDMA Technology and MATLAB Simulation Source Code)

MIMO指多输入多输出，MIMO技术大致可以分为两类：发射/接收分集和空间复用。传统的多天线被用来增加分集度从而克服信道衰落，具有相同信息的信号通过不同的路径被发送出去，在接收机端可以获得数据符号多个独立衰落的复制品，从而获得更高的接收可靠性。这种技术往往要结合多天线技术，而多天线技术在移动通信中得到了广泛的研究。(MIMO refers to Multiple Input Multiple Output, MIMO technology can be broadly classified into two categories: transmit/receive diversity and spatial multiplexing. Traditional multi-antenna was used to increase the degree of diversity to overcome channel fading, the signal with the same information through different paths have been sent in the receiver-side data symbols can be multiple independent copies of the decline, which was higher reception reliability. This technology often have to combine multi-antenna technology, and multi-antenna technology in mobile communication has been widely studied.)

在LDPC译码中用LLR方式,跌代次数分别为5和10对译码性能的影响MATLAB写的()

用C++实现BPSK的仿真，包括信源，调制，信道，解调，计算误比特率(Using C++ implementation BPSK simulation, including source, modulation, channel, demodulator, bit error rate calculation)

说明：  OFDM仿真文件，matlab编写，通信，无线，(OFDM simulation file MATLAB, communication, wireless,)

一整套OFDM系统的实现程序，基于梳状导频图案的OFDM系统估计，采用LS信道估计方法，和线性插值法，信道采用瑞丽多径信道。(A whole set of OFDM system, the implementation of the program of OFDM system based on comb pilot pattern, estimates using the LS channel estimation method, and the linear interpolation method, use ruili channel multipath channel. )

说明：  commuication python uwoc

1.2版本， 1.对联通手机号码进行支持，主要的处理就是在短信中心的控制上 2.对容错能力进行提高,对于发送失败的信息,加以提示. 3、解决以手机做为gsm模块时不能正常接收短信的问题，从而达到聊天的效果。(Version 1.2, 1. Unicom)