Channel estimation LS MMSE

扩频通信，即扩展频谱通信(Spread Spectrum Communication)，它与光纤通信、卫星通信，一同被誉为进入信息时代的三大高技术通信传输方式。

LTP傳輸範例程式，可以說明LTP運作方式(LTP transmission sample program illustrates the mode of operation LTP)

本程序利用交替优化的方法实现了8-PSK信号在多普勒频移条件下的相位和定时双参数同步，不仅程序注释清晰，而且附上该程序实验报告，力求便于读者理解。(By optimizing alternately, this program realizes two parameters synchronization of phase and timing for 8-psk signal under Doppler frequency shifting channel. For better understanding of readers, I not only note the program clearly, but also provide the experimental report in the rar.)

数字通信中的16QAM映射，采用格雷码编码，包括星座图的显示，简单明了清晰，由此可以退出64,128QAM的matlab编码(Digital communication 16QAM mapping, the use of Gray coding, including the constellation display, simple clear, it can be out of the 64,128 QAM matlab code)

MIMO system...... it employs almouti code using STBC to achive diversity

利用vc编写的基于Goose报文的通信程序，在此程序中可对所发送的报文进行设定。(Goose vc prepared based on the use of packet communication program, in this procedure can send packets to the set.)

用MATLAB对DSB的调制解调进行仿真模拟，包括时域，频域，加噪，包络。(MATLAB for DSB modulation and demodulation simulation, including time domain, frequency domain, noise, envelope.)

Design of Low Complexity OFDM Schemes and Position Location Algorithm for ... By Syed Faisal Ali Shah PrecodING OFDM System THESIS Go

说明：  QPSK调制仿真与分析，使用matlab仿真实现QPSK相干调制与解调，通过AWGN信道，画出误比特率曲线(Generate digital baseband signal, add AWGN Gaussian white noise to transmit in the channel, detect the original baseband signal, draw theoretical and simulation error rate curve, QPSK modulation simulation and analysis, use matlab simulation to realize QPSK coherent modulation and demodulation, draw error rate curve through AWGN channel)

基于IRA天线的辐射波模拟器天线辐射性能研究(Radiation wave simulator antenna radiation performance of the antenna-based IRA)