16QAM

说明：  基于梳状导频的LS信道估计算法与无信道估计算法性能对比(Performance Comparison between LS Channel Estimation Algorithm and Channelless Estimation Algorithm Based on Comb Pilot)

STM8S - for new member

针对MIMO-OFDM系统中期望最大化(EM)信道估计算法在高信噪比(SNR)下带来的误差地板(EF)现象,且OFDM符号的数据传输效率随发射天线数的增加而明显降低,提出一种改进的高效EM信道估计算法。该算法首先引入一种准确的等效信号模型并推导出一种修正的EM算法,改善了EM算法在高SNR下的性能 在多个OFDM间利用相位正交导频序列来提高数据传输效率,同时进行联合信道估计以提高估计性能。仿真实验验证了所提算法具有更高的信道估计性能和更高的数据传输效率。(For multiple-input multiple-output with orthogonal frequency division multiplexing(MIMO-OFDM) systems,the error floor(EF) phenomenon at high signal noise rate(SNR) was induced by the expectation maximum(EM) channel estimation algorithm.In addition,the data transmission efficiency was declined obviously with the increasing number of transmit antennas.According to these problems,an improved and efficient EM channel estimation algorithm was pro-posed.Firstly,an accurate and equivalent signal model was introduc...)

说明：  实现optisystem中matlab component的ofdm仿真。这是调制代码 解调代码在另一个程序里。(Realize ofdm simulation of matlab component in optisystem. This is the modulation code. The demodulation code is in another program.)

TO PLOT THE RAYLEIGH DISTRIBUTION PLOT

说明：  利用优化算法实现稀布阵列天线方向图分析与综合(Pattern synthesis of array antenna using optimization algorithm)

基于matlab的TD-SCDMA动态信道分配(Matlab-based TD-SCDMA, dynamic channel allocation)

实现对CDMA短消息承载数据的编码解码处理(To achieve the CDMA SMS bearer data encoding and decoding processing)

该程序是一个串口的数据接收程序，具有简化的串口设置，传输速率的设置等功能，适宜于串口功能的测试。(The program is a serial data receiving process, with a simplified set of serial port, transfer rate settings, such as features, functions suitable for serial testing.)

MIMO中的天线选择，空间调制，空时分组码空间调制，等一些算法的仿真(mimo study- spatial modulation is a rencently developed transmission technique that uses multiple antennes.)