structure-analysis

matlab的各种mdl源代码，经典例题(example for matlab)

C++大作业，编写一个account类实现基类派生类之间的各种关系。主要用于初学者对于类的理解。(C++ big job, write a class that implements account the various relationships between the base class derived class. The main class for beginners to understand.)

扩展的卡尔曼滤波方法matlab代码，可以用于各种电机控制中的在线参数辨识以及无速度传感器设计(extended kalman filter )

基于最小二乘辨识的模型参考自适应，含有详细word说明文件(Based on the model reference adaptive least squares identification, documentation contains detailed word)

从初值出发，先计算y对时间t的导数，得到y的变化速度；求出x对t的导数，得到x随时间的变化速度。然后时间前进一小步h=0.002，同时x和y也都发生一个小的变化，即在原来数值基础上加上时间步长h和变化速度的乘积。如果x到达1或者-1，强制让y发生变化。这个过程不断迭代，得到结果。 (completed chart)

The distribution network has characteristics different from the transmission system. Distribution networks are commonly 1. three-phase unbalanced 2. radial with sometimes weakly meshed topology 3. with high resistance to reactance (r/x) rations here, an equivalent current injection method is used in rectangular coordinates to analyse the given radial distribution system. The FDLF method uses the NR-algorithm, with a constant Jacobian matrix. This matrix is further decoupled into two identical sub-Jacobian matrices.

说明：  ERA模态识别，该算法可以与自然激励技术合用已识别结构模态参数(Era modal identification, which can be used with natural excitation technology to identify structural modal parameters)

实现线性卷积、圆周卷积、周期卷积的动态演示，以及采样定理，滤波器的设计。(Achieve linear convolution, circular convolution, convolution cycle dynamic presentation, and the sampling theorem, the filter design.)

matlab安装后无法运行状况下的解决方案(the matlab installation can not run the solution under the condition)

用于计算dft函数相关性的代码，包括自相关和互相关(To Calculate DFT correlation function)