ffttest_2D

说明：  在matlab中，以simulink为主要工具介绍了系统仿真方法与技巧，包括连续系统、离散系统、随机输入系统和负数系统的仿真。(In matlab in order to simulink introduced as the main tool for system simulation methods and techniques, including continuous systems, discrete systems, stochastic systems and the negative input of the simulation system.)

code example demonstrating Wildcard searching techniques

用matlab作图时，对于下标的标注格式需要用特殊符号来实现。本文档里面归纳了相关的标注格式的符号，供大家学习参考。(Plotted using matlab need to use special symbols for subscripts label format. This document which summarizes the annotation format symbols, for all to learn.)

汽车二自由度模型，模拟在阶跃输入下，汽车的横摆角速度以及侧向速度响应(two degree of freedom model of automobile)

一个混沌保密通信的simulink模型，效果很好(A chaotic secure communication of the simulink model, the effect of good)

地震合成记录（简单地震模型建立程序）+速度分析（改变参数可通用），均可直接运行，直接得到成果图像显示。(The seismic synthetic record+ velocity analysis)

c++ and matlab 散射电流可视化、球体(c++ and matlabScattering current visualization, sphere )

请用多层感知器（MLP）神经网络误差反向传播（BP）算法实现异或问题（输入为，要求可以判别输出为0或1），并画出学习曲线。其中，非线性函数采用S型Logistic函数。(Please use the Multilayer Perceptron (MLP) back propagation neural network (BP) algorithm XOR problem (input is required to determine the output is 0 or 1), and draw the learning curve. Among them, the non-linear function using S-type Logistic functions. )

说明：  用matlab读取uff格式的数据文件。(load the data type of *.uff using matlab.)

说明：  过零点检测 找到正弦波的过零点 过零点检测 找到正弦波的过零点(Zero crossing detection to find the zero crossing of sine wave)