JJLine

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 ) )

semivariogram structure function ,it is about 2D semivariogram.

MATLAB fem 工具箱 主要针对有限元分析(matlab toolbox)

说明：  另一种潮流计算程序，本程序使用C语言编写(Another flow calculation procedures, the procedures using the C language)

自编MATLAB,里面包括：31点滚降，4psk程序，new眼图，等等(Self MATLAB, which includes: 31 point roll, 4psk procedures, new eye, and so on)

EM3DTask_TFEM2,三维电磁仪扫频命令表编辑程序源代码(editor of task table of TFEM-2)

不用说的好，我们室主任开发的Photonics cyrestal band gap计算Fortran代码。注意不要忘了input文本。(Needless to say the good, our director of development Photonics cyrestal band gap calculation of Fortran code. Do not forget to pay attention to input text.)

使用GetSystemInfo函数，获取系统硬件基本信息(get system hardware basic info by using GetSystemInfo function.)

matlab simulink 模糊控制器模型(matlab simulink fuzzy controller model)

一种重要的辨识方法，主要用于对电力系统中低频振荡和其他运行方式的辨识(An important recognition method, mainly used for the identification of low-frequency oscillations in the power system and other running)