duffing

cognitive radio model as in an efficient Discovery of Spectrum Opportunities with MAC-Layer Sensing in Cognitive Radio Networks

说明：  析了变速恒频双馈风力发电系统的工作原理。结合风力机特性和双馈发电机特性，说明了变速恒频运行方式下的最优风能捕获策略，并介绍了风力发电系统的滑模变结构控制、自适应控制、鲁棒控制和人工神经网络控制。总结了变速恒频风力发电系统的发展趋势。(Analysis of a Variable Speed Constant Frequency Wind Power Generation System works. Combination of wind turbine characteristics and the characteristics of doubly-fed generator, variable speed constant frequency shows the optimal operating mode to capture wind energy strategy, and introduced wind power generation system with variable structure control, adaptive control, robust control and artificial neural networks control. Summarizes the VSCF wind power system trends.)

一个利用感知准则进行模式分类的程序,虽然很简单,但很实用(use of a perception pattern classification criteria for the procedure, although simple, but very practical)

用matlab实现ofdm信号和它的累积分布函数代码(Using matlab ofdm signal and its cumulative distribution function code)

配电网潮流计算分层前推回代法 基于分层模型的潮流计算方法 (Distribution power flow calculation stratified forward and backward substitution method)

alphabet recognization, a simplified version only to detect few numerical pronunciations

说明：  定义一个描述X，Y坐标系中点的结构体，并编写判断平面中任意给定的三个点是否在同一直线上的程序。(A description of the definition of X, Y coordinates of the midpoint of structure, and to prepare to judge any given plane is the three points along the same line of procedure.)

认知无线电系统中，主用户和认知用户仿真代码，可以根据需要加入多个主用户和认知用户等。matlab的实现(Cognitive radio system, the primary users and cognitive user simulation code, as needed into a number of primary users and cognitive users. matlab implementation)

solving 1d transport (advection + diffusion)problem implicit method: dQ/dt+U dQ/dx=0

编写程序：基类base，有一个私有数据成员n，派生类Derived公有继承基类base，Derived中新增加一个数据成员m(Programming: the base class base, there is a private data member n, the derived class Derived inherits the base class public base, Derived add a new data member m)