MIMOchannel_matlab

The Interleaved Frequency Division Multiple Ac- cess (IFDMA) scheme is based on compression, repetition and subsequent user dependent frequency shift of a modulated signal. Multiple access is enabled by the assignment of overlapping but mutually orthogonal subcarriers to each user. In this paper it is shown that IFDMA can be regarded as unitary precoded OFDMA with interleaved subcarriers. On the other hand, IFDMA is shown to be a CDMA variant with frequency domain orthogonal signature sequences and chip interleaving. Thus, it combines the advantages of single and multi carrier transmission such as low peak to average power ratio, orthogonality of the signals of different users even for transmission over a time dispersive channel and low complexity. Simulation results show the good performance of coded IFDMA transmission over a mobile radio channel for different data rates.

plotting Consecutive OFDM Subcarriers in Time domain..This program plots sensitivity of OFDM subcarriers with Carrier frequency offset(CFO)..

《Extremum seeking control and applications》 第三章实例代码(Extremum seeking control and applications code of the third chapter )

通过基2 实现fft变换 可自定义输入变量 带有详细注释(Achieved through the radix-2 fft transform the input variables can be customized with detailed notes)

说明：  利用理论推导的方法，该matlab程序得出涡旋光束经相位全息光栅接收后一阶衍射光束的解析表达式。(By using the method of theoretical derivation, the analytical expression of the first-order diffraction beam of vortex beam received by phase holographic grating is obtained by MATLAB program.)

这是简易的ASK信号调制，把文件放入matlab的文件库中，通过在matlab的命令窗口直接调用功能函数并运行，可以直接看到仿真结果。(This is a simple the ASK signal modulation, the file into Matlab file library, call function directly in the Matlab command window and run the simulation results can be seen directly.)

"average" filter, "gaussian" filter, "wiener" filter and the "median" filter

非常好的向前和向后插值两种方法：用matlab实现最近邻域插值旋转程序(very good ，ifyou want please loadown)

对气隙磁通进行FFT，可以准确的实现对电机气隙磁通的分析(FFT of air gap magnetic flux can accurately analyze the air gap flux of the motor)

DCT 音频水印 嵌入与提取 并进行攻击 (DCT SHUIYIN CHENGXU)