Attachments_2012_07_4

Wiener filter based on tracking a priori SNR usingDecision-Directed method, proposed by Scalart et al 96. In this method it is assumed that SNRpost=SNRprior +1. based on this the Wiener Filter can be adapted to a model like Ephraims model in which we have a gain function which is a function of a priori SNR and a priori SNR is being tracked using Decision Directed method.

使用与matlab中的小波熵程序，易于实现，注释清晰容易理解(With the the wavelet entropy program in matlab, easy to implement easy to understand, clear notes)

说明：  Crank-Nicolson格式求解抛物型方程(Solving parabolic equation with crank Nicolson scheme)

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说明：  给出了利用OFDM实现UWB的源代码及实例。包括从信源、信道、接收等，是一个完整的系统，接口方便，容易学习使用。(given by using OFDM UWB achieve the source code and examples. Letter from the source, channel, the receiver, is a complete system interface easy to learn to use.)

EEMD总体经验模式分解，EMD 的一种改进算法，可用于信号的去噪。(EEMD overall empirical mode decomposition, EMD of an improved algorithm can be used for signal de-noising.)

说明：  energy management in smart grid

详细的unscented particle filter 程序(Unscented particle filter detailed procedures)

风电场建模与仿真。包括风速、机组等模块的建模，机组是双馈风力发电机组，可运行可调试。(Modeling and simulation of wind farms. Modeling including wind speed, units and other modules, the unit is a double-fed wind turbine can run debug.)

Lorenz说：“在巴西的蝴蝶拍打翅膀会引发德克萨斯州的一场龙卷风吗？”，就是“蝴蝶效应”，是由三维常微分方程组描述的，本算法用来计算蝴蝶效应("Does a butterfly flapping its wings in Brazil trigger a tornado in Texas?" Lorenz said" The butterfly effect is described by the three-dimensional ordinary differential equations. This algorithm is used to calculate the butterfly effec)