CR-MATLAB

二维声波交错网格十阶差分程序，模拟声波传播规律，计算波场振幅(Two-dimensional staggered grid ten bands sound difference program to simulate the propagation of sound waves to calculate the wave field amplitude)

NSGA2的Matlab代码，运行正确，注释详尽(NSGA2-Matlab code to run correctly, and detailed annotations)

提取轮廓线的基本方法，大量的提取例子，和大量的代码示例(The basic method of extracting contour extraction examples, and a large number of sample code, a large number of)

基于matlab的调制解调程序，适用于通信理论的初学者(Based on matlab modulation and demodulation process, communication theory for beginners)

小波包分析提取振动信号中的特征频率，使用混沌与分形分析的例程，有井曲线作为输入可计算其地震波的衰减。( Wavelet packet analysis to extract vibration signal characteristic frequency, Use Chaos and fractal analysis routines, There is a well attenuation curve as input to calculate its seismic waves.)

应用简正波理论求解下列声场：如下图所示波导模型，上层为均匀水层，其厚度为100m，声速为1500m/s；下层为硬质均匀海底，海面和海底均平整。点声源位于30m深处，辐射声波频率为25Hz，编程计算10m和90m深度上的传播损失，分析其差别。(The normal wave theory is applied to solve the following sound fields: the waveguide model shown in the following figure shows that the upper layer is a uniform water layer with a thickness of 100m and a sound velocity of 1500m/s; the lower layer is a hard uniform seabed with smooth surface and seabed. The point source is located at the depth of 30m and the frequency of radiated sound wave is 25Hz. The propagation loss at the depth of 10m and 90m is calculated by programming, and the difference is analyzed.)

说明：  用于估计未知数据的EM算法，即最大期望算法，用到的地方很多，可用来做同步。(The data used to estimate the unknown EM algorithm, that is the maximum expectation algorithm, used in many places, can be used for synchronization.)

说明：  用MacCormark格式求解一维Burgers’方程(MacCormark format used for solving one-dimensional Burgers' equation)

一些matlab中很有用的源码程序，对于初学者学习很有帮助(matlab )

设计IIR数字陷波器，采样率为6.4kHz，陷波频率点为50Hz、150Hz、250Hz；c1.mat为输入数据文件；并且包括陷波前后的频谱分析。(Design of IIR digital notch filter, sampling rate of 6.4kHz, notch frequency point of 50Hz, 150Hz, 250Hz c1.mat for input data files and includes the notch before and after the spectrum analysis.)