SpreadSpectrumcommunication_Matlab

We address the problem of blind carrier frequency-offset (CFO) estimation in quadrature amplitude modulation, phase-shift keying, and pulse amplitude modulation communications systems.We study the performance of a standard CFO estimate, which consists of first raising the received signal to the Mth power, where M is an integer depending on the type and size of the symbol constellation, and then applying the nonlinear least squares (NLLS) estimation approach. At low signal-to noise ratio (SNR), the NLLS method fails to provide an accurate CFO estimate because of the presence of outliers. In this letter, we derive an approximate closed-form expression for the outlier probability. This enables us to predict the mean-square error (MSE) on CFO estimation for all SNR values. For a given SNR, the new results also give insight into the minimum number of samples required in the CFO estimation procedure, in order to ensure that the MSE on estimation is not significantly affected by the outliers.

模糊聚类处理过程中计算传递闭包的程序。指定行列后，自动读取Excel中数据。(fuzzy clustering)

floyd算法，可以根据这个改成各种代码，建模常用(floyd algorithm, based on the change of code, commonly used in modeling)

用于Matlab 编程，计算diffusion limited aggregation (A Matlab program to perform the diffusion limited aggregation )

GA algorithm for ackley function

A modeling approach to swarming in honey bees

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递推最小二乘算法，只适合单入单出，用于建模中的参数辨识，(Recursive least squares algorithm, Single Input Single Output, parameter identification)

使用matlab实现对空时分组码的协同分集系统进行性能仿真(Using matlab to realize synergies STBC diversity system performance simulation)

基于matlabd的关于双馈感应风电系统的建模仿真，可以可视化了解系统的动态过程(giving a kind of Modeling and simulation of Doubly Fed Induction generator (DFIG) coupled with wind turbine visualising the advantages of the DFIG over other generators it is being used for most of the wind applications About the different type)