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利用单带滤波器来设计一个半带滤波器，并显示半带滤波器H0,H1,及 H0+H1的幅频响应单带滤波器的归一化截止频率为0.84,长度＝16，半带滤波器的长度＝31。(Single-band filter design using a half-band filter, and display the half-band filter H0, H1, and H0 H1 magnitude response of the single-band filter normalized cutoff frequency of 0.84, the length of = 16, half-band filter length = 31.)

说明：  三维双凹激光振荡，采用菲涅尔衍射和fox-li方法，得到两维幅度和相位输出。(Three-dimensional double-concave laser oscillation, using Fresnel diffraction and the method of fox-li, the two-dimensional amplitude and phase output.)

对高维数据进行小波去噪，并得到降噪效果图(High-dimensional data on wavelet denoising and get noise reduction effect diagram)

matlab codes for data allocation

GM板有限元matlab程序 FGM板有限元matlab程序(应力矩阵)(failed to translate)

this is the echo cancelation using lms adaptive filter

说明：  求系统的几种分叉图，很全，而且运算速度很快，希望可以帮助到大家(Some find the system bifurcation diagram, it is full, and the operation very quickly, I hope you can help to)

2D Fourier变换在光衍射方面的应用一例,对孔函数直接应用FFT2,得到衍射结果；以及FDTD方面的两个不成熟的程序(2D Fourier Transform-ray diffraction case of the application of direct application Kong FFT2 function, be diffraction; FDTD and the two immature procedures)

说明：  matlab实现双线性插值算法,在界面上实现读取存放缩放图片(matlab bilinear interpolation algorithm to achieve, in the interface to read stored zoom picture)

codes for particle swarm optimization