Codes

Zernikmoments basically used for shape analysis

超声仿真的代码，matlab的，对于阵元的发射接收的例子，是很好的学习资料。改代码依附于丹麦理工的fieldtwo，可以参考user guide进行仿真。里面是文本格式的，打开转成.m文件即可(Of ultrasound simulation code, matlab example for the launch of the array element receives a good learning materials. Change the code attached to Danish Polytechnic fieldtwo, can refer to the user guide Simulation)

利用双谱分析信号的二阶非线性，检测信号的二次相位耦合(Spectral analysis of signals using two second-order nonlinear quadratic phase coupling detection signal)

主成分做排名的matlab代码，运用主成分分析计算教练排名得分的方法。( Principal component rankings do matlab code, using principal component analysis method to calculate the coach ranking score.)

MIMO检测算法，内含主程序，噪声信道产生，最大似然检测算法，最小均方误差检测算法及16qam调制，64qam调制(MIMO detection algorithms, containing the main program, channel noise generated maximum likelihood detection algorithm, minimum mean square error detection algorithm and 16qam modulation, 64qam modulation)

用MATLAB求解滞微分微分方程的理论及数值模拟(Hysteresis using MATLAB to solve differential equations and numerical simulation of the theory)

随机自动分班级排学号软件 一个朋友在中学教书，经常为排班级排学号头痛，于是做了这么一个小软件让朋友用用，反馈感觉上还不错。 本软件适用于小学升初中只有两科成绩,且成绩只有A,B,C三个标号. 说明一下:该随机自动分班级排学号软件, 不仅有有考虑到,成绩的均匀, 还考虑到生源地(即原毕业学校),性别,及班级学生个数的均匀. 一般来说,每个班级的总体都比较均匀 具体的说明，可以运行一下本软件，点一下生成源文件样本，然后参考一下即可。(Random Automatic Class scheduling software school No. A friend of mine to teach in secondary schools, often for the Class Pai Pai Student headache, then to do so, a small software that allows friends to use, and feel pretty good feedback. This software applies to primary and junior high school only two subjects, and the results only A, B, C grade three. Explain: The random Automatic Class No. Pai school software, not only has to take into account, results in uniform, but also taking into account the students (ie the original graduate schools), gender, and class number of the uniform. Generally speaking, each Class are relatively uniform overall specific, you can run like the software, click the source file to generate samples, and then reference click.)

MATLAB实现，可以实现电力防振锤函数的拟合，供参考(MATLAB realization of the power height function can be fitted, for reference)

说明：  四种常见的归一化方法，归一化效果不错。应用在matlab环境下。(Four common normalization method, normalized results are good. Used in the matlab environment.)

Boundary element method function [index,g,h,a,unb,x,u,un,uin]=bemlabecom(n,c,index,in,cin) [index,g,h,a,unb,x,u,un,uin]=bemlabecom(16,[0 0 0.25 0 0.5 0 0.75 0 1 0 1 0.25 1 0.5 1 0.75 1 1 0.75 1 0.5 1 0.25 1 0 1 0 0.75 0 0.5 0 0.25 0 0],[1 0 1 0 1 0 1 0 0 200 0 200 0 200 0 200 1 0 1 0 1 0 1 0 0 100 0 100 0 100 0 100],9,[0.25 0.25 0.50 0.25 0.75 0.25 0.25 0.50 0.50 0.50 0.75 0.50 0.25 0.75 0.50 0.75 0.75 0.75]) in bemlabecom2 we change a & unb to : a1 a2,unb1 unb2 n=number of nodes=number of element=number of point c=matrix that determine the coordinate of point m=coordinate of nodes in global coordinates index: determine u or un for boundary nodes in:number of internal nodes cin: coordinate of internal nodes