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例4：在sinc(t)信号中叠加噪声，分析对应频谱 fs=100 采样频率,必须大于两倍基带信号最高频率 ts=1/fs 采样时间间隔 T=2 时间窗大小 ( x=x+0.1*randn(1,N) x=awgn(x,-10, measured ) figure plot(t,x) title( 时域信号图 ) xlabel( t /s ) y=fft(x,N) figure if mod(N,2)~=0 N=N-1 end f=linspace(0,fs/2,N/2) plot(f,abs(y(1:N/2))*2/N) title( 叠加噪声的sinc(t)信号频谱 ) xlabel( f /Hz ) figure y0=y(1:N/2) P=y0.*conj(y0)/N P=10*log10(P) plot(f,P) title( 功率谱 ) xlabel( f /Hz ) )

2D fdtd with pml and two sinosudoal point source

说明：  matlab的svm工具箱,感觉还不错。支持向量机在识别方面很常用的。(matlab svm toolbox~)

读取matlab 文件夹中所有的文件路径 包括子文件夹的文件路径(Read all matlab folder including subfolders file path file path)

美国F-16飞机的配平程序、小扰动线性化程序、全量方程求解时域响应、小扰动线性化方程求解时域响应。用MATLAB2014a编写。(The United States F-16 plane balancing procedure, the small perturbation linearization procedure, the full amount of solving the equation of time domain response, small perturbation linearization equation is solved in time domain response. Written by MATLAB2014a.)

Control system dynamic simulation instance tutorial,可以很好的学习交流控制系统的仿真(Control system dynamic simulation instance tutorial, can be a good learning exchange control system simulation)

ECMA Section: 12.6.3 The for..in Statement.

open loop boost converter using ramp input

IIR数字通信滤波器的设计源程序与实现过程(IIR Digital Communication Filter Design and Implementation of source code)

通过均值聚类实现四类数据的分类，一直在用(means clustering )