exam1_sin01

采用L-M优化算法用以训练BP神经网络，使其能够拟合某一附加有白噪声的正弦样本数据。设计一个三层BP神经网络，其网络的隐含层神经元的激励函数为双曲正切型，输出层各神经元的激励函数为线性函数，隐含层有6个神经元(LM optimization algorithm used to train BP neural network to enable it to fit a white noise, sine additional sample data. Design a three BP neural network, its network of hidden layer neuron activation function of hyperbolic tangent type for the output layer activation function of each neuron is a linear function of the hidden layer has 6 neurons)

复杂网络中基于谱分析的社区发现算法中，求解拉普拉斯矩阵的第二特征值（费德勒向量）代码(Spectral analysis of the complex network of community-based discovery algorithm for solving Laplace second eigenvalues ​ ​ of the matrix (Federer vector) code)

说明：  本程序是用来预测简单的时间序列的数据，欢迎大家一起来探讨学习(time series data of the prediction)

非常实用的基2DIT-FFT函数，直接运行可以分析原理。(Very practical base 2DIT-FFT function, operation can be analyzed directly principle.)

捷联惯性导航系统的卡尔曼滤波对准程序，非常有用(alignment sins)

说明：  _应用MATLAB语言处理数字信号与数字图像，做图像处理编程时很实用的的电子书(_ Application of MATLAB language processing digital signals and digital images, so image processing is very useful when programming the e-book)

说明：  卡尔曼滤波原理简介以及用matlab语句实现卡尔曼滤波(Introduction to the Kalman filtering principle and the Kalman filter using matlab statement)

DC Motor quadrant Drive

matlab simulink 整车模型仿真软件，(matlab simulink vehicle model simulation software)

仿真电容的充电过程，设t=0为初始时刻,仿真步进应远远小于系统的时间系数(Simulation of capacitor charging process, based t = 0 as the initial time step simulation system should be much smaller than the time factor)