COM

OFDM Simulation Using 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.

CA code generator for gps

说明：  无线传感器网络路由协议DSR的改进的matalb仿真实例(DSR routing protocol for wireless sensor networks improved the matalb simulation)

Three phase space vector pulse width modulation using generalised multiphase space vector aproach

matlab的getframe有时候并不能截取画出来的3D图像(而是截取出一个空坐标系).该程序用matlab调用windows的截图功能, 真正实现了原封不动的截图.(但是耗时会长一点). 使用时, 先把文件夹添加到matlab的路径下即可.文件夹中有两个功能略有不同的函数printScreen是截取整个屏幕, printFigure是截取整个屏幕后挖出当前的Figure窗口中的内容.(matlab does not intercept the getframe sometimes drawn 3D images (but the interception of an empty frame) The procedures used to call matlab windows screenshot function, truly untouched screenshot. (but a little time consuming president ) When using, first add a folder to the matlab' s path. folder has two functions is slightly different function printScreen intercept the entire screen, printFigure dug up the entire screen after interception current Figure window content.)

MD5 encryption and decryption by srp

NMF矩阵分解算法可用于高维数据分解和降维处理分析。(NMF matrix decomposition algorithm can be used for high-dimensional data decomposition and dimension reduction analysis.)

数据融合的问题，比较详细，完整，看那一系列文档(Data integration issues, more detailed, complete, look at a series of documents)

to find the circular convolution of one dimensional input