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虚拟激励法的实现，4自由度的随机振动问题，包含详细说明，对出学者有很好启示作用！(The realization of the virtual excitation method, 4 degrees of freedom random vibration problems, including details of the scholars have a good inspiration!)

把各阶导函数的ESD作为a的函数，确定其峰值频率的数值。该函数把以下变量作为输入：a的最小值alphamin，其增量步长alphastep；(various derivative function of the ESD as a function of its peak frequency values. The function of the following variables as input : a minimum of alphamin. its incremental step alphastep;)

极点配置直接自校正控制 （最小相位确定性系统）(Pole placement direct self-tuning control (minimum phase deterministic system))

Controllability of a system

这是书籍:Matlab控制系统与应用的源码,(This is the book: Matlab control system and application source code,)

Stephen J.Chapman《MATLAB编程（第二版）》,希望对大家有所帮助。(Stephen J. Chapman )

说明：  通过非线性动力学中混沌研究的poincare图可以很方便的识别出周期，拟周期或者混沌运动，该程序实现了poincare图的绘制(Through the study of nonlinear dynamics in the chaotic poincare map can easily identify periodic, quasi-periodic or chaotic motion, the program achieved poincare mapping)

Pyramid sort, for 9-elements array (just for main idea)

关联向量机，很好的工具箱，有用于分类和回归的例子(Relevance vector machine, a good toolbox, there are examples for classification and regression)

子程序，将QAM符号向量d0_J映射为二进制符号矩阵gry(Subroutines, will QAM symbol vector d0_J the mapping matrix for the binary symbols gry)