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Spectral analysis of discrete deterministic signals

select keypad for dtmf tone

简单计算DBR的matlab文件，计算激光器的分布反馈(the caculation of DBR in lase of ditributed feedback reflector)

刘金琨《滑模变结构控制MATLAB仿真（第2版）》书中的仿真程序，原书第二版已取消了附带光盘(Liu Jinkun "Sliding Mode Control MATLAB (2nd Edition)" in the book of the simulation program, the second edition of the original book has been canceled with CD-ROM)

Animation shows particle motion along the helix. Main file is MotionOnHelix.m This is example how Matlab can be used for educational purposes, for teaching multivariate calculus.

matlab使用垂直Sobel算子，自动选择阈值 [VSFAT Threshold]=edge(f, sobel , vertical ) 边缘探测 figure,imshow(f),title( 原始图像 ), 显示原始图像 figure,imshow(VSFAT),title( 垂直图像边缘检测 ) 显示边缘探测图像 使用水平和垂直Sobel算子，自动选择阈值 SFST=edge(f, sobel ,2) figure,imshow(SFST),title( 水平和垂直图像边缘检测 ) 显示边缘探测图像 使用指定45度角 Sobel算子滤波器，指定阈值 s45=[-2 -1 0 -1 0 1 0 1 2] SFST45=imfilter(f,s45, replicate ) SFST45=SFST45>=2 figure,imshow(SFST45),title( 45度角图像边缘检测 ) 显示边缘探测图像 (matlab I=rgb2gray(I0) J0=double(I) [VSFAT Threshold]=edge(f, sobel , vertical ) figure,imshow(f),title figure,imshow(VSFAT),title)

在模型阶数和时滞已知与未知情况下，系统辨识与建模的5种最小二乘法。(5 kinds of least square method for system identification and modeling in the model order and time delay are known and unknown.)

1）利用CC++语言实现给定的LFSR； 2）通过不同初始状态生成相应的序列，并观察它们的周期有什么特点； 3）利用生成的序列对文本进行加/解密（按对应位作模2加运算）。 给定的LFSR为：(1) the use of C C++ language given LFSR 2) to generate the corresponding sequences by different initial state, and observe what are the characteristics of their cycle 3) using the generated sequence of text encryption/decryption (press the corresponding bit for modulo-2 addition operation). LFSR given as follows:)

我们假设我们的轨迹从原点（0,0）出发，终点B的坐标是（2,1）。通过Matlab就可以计算出边界条件，最终画出曲线。(We assume that our path from the origin (0,0) starting and ending coordinates of B are (2,1). Matlab can be calculated by boundary conditions, the final draw the curve.)

MATLAB CODE FOR ARTIFICIAL NEURAL NETWORK