matlab-

FIR 及 IIR低通滤波器的设计以及 正弦信号滤波前后的频谱分析 （不同窗函数截断）(FIR and IIR filter design and low-pass filter before and after sinusoidal signal spectrum analysis (different window function truncated))

The MATLAB Genetic Algorithm Toolbox

自编SOFDTD计算等离子体平板反射透射系数matlab程序(Self SOFDTD plasma flat reflection and transmission coefficient calculation matlab program)

Spread spectrum merupakan sistem dimana sinyal yang dikirimkan memiliki bandwidth yang jauh lebih lebar daripada bandwidth sinyal informasinya sendiri. Proses pelebaran bandwidth sinyal informasi ini dilakukan pada sisi pengirim dan disebut spreading. Sebaliknya, proses penyempitan kembali bandwidth sinyal informasi dilakukan di sisi penerima, dan disebut despreading. Pada gambar 1 berikut menunjukkan proses yang terjadi pada sistem spread spectrum.

正弦信号通过幅度调制（AM,DSB,SSB）所得到的时域波形及频域波形(AM,DSB,SSB waveforms in frequency- domain and Time domain)

MATLAB初学者入门介绍，值得学习的PPT,有例程有练习(Introduction to MATLAB for beginners, it is worth learning the PPT, there is a practice routine)

matlab实例clearN=100f=zeros(50,50) f(15:35,23:28)=1 figure(1)imshow(f, notruesize )F=fft2(f,N,N) F2=fftshift(abs(F)) figure(2)x=1:N y=1:N mesh(x,y,F2(x,y)) colormap(gray) colorbar(matlab)

此程序实现构造Daubechies小波基(this program structure Daubechies wavelet)

GRAVITY Gravitational acceleration from Latitude and Z References: Gill, A. E., Atmosphere-Ocean Dynamics, Volume 30 of International Geophysics Series, Academic Press Inc., New York, 1982. Fofonoff, N. P., and R. C. Millard Jr., Algorithms for computation of fundamental properties of seawater. Unesco Tech. Pap. in Mar. Sci., No. 44, 54 pp.

在matlab中用到的函数，用来方便构造小波和尺度函数(The function of the matlab in use, easy to construct wavelet and scale functions)