snr_cnr

脊线提取是信号处理很重要的一个项内容 这里用MATLAB语言实现了脊线的提取 (Ridge extraction is a very important signal processing items here in MATLAB language to implement the extraction ridge)

2010 数学建模大赛 赛前matlab培训4(MATLAB programming topics lecture 4.zip)

说明：  用MATLAB仿真光纤的非线性效应中的自相位调制曲线.(Using MATLAB simulation of nonlinear optical effect of self-phase modulation curves.)

svm线性分类器 .......................(svm linear classifier)

直接序列扩频系统的仿真程序，里面附有仿真程序结果图(Direct sequence spread spectrum system simulation program, which results with a simulation program map)

说明：  这是基于matlab6.5 用于仿真设计双曲面放射镜的程序，后续开发将完善参数分析部分！(This is based on the design for simulation matlab6.5 mirror hyperboloid radiation procedures, subsequent development will improve the parameters of part!)

一群优化算法程序，利用这个程序可以检查fitness的变化规律(ant colony optimization (ACO))

drtoolbox降维工具箱程序包以及使用的范例 LLE，LTSA，ISOMAP，等( examples of drtoolbox use)

matlab进行数字提取时，数字模板模板库！(matlab number)

该算法把计算出的图像不变质心作为对其进行对数极坐标变换的原 点, 再作傅立叶变换, 取出中频段幅值作为水印嵌入域。该算法具有较好的鲁棒性、可检测性, 能同时抵抗几何攻击和信号 处理攻击, 它在数字图像的版权保护等领域有广泛的应用前景。(The algorithm to calculate the heart of the image does not degenerate as the number of its polar transformation of the origin, further Fourier transform, remove the watermark embedding in the frequency domain as amplitude. The algorithm has better robustness, detectability, can also resist geometric attacks and signal processing attacks, which in the digital image copyright protection and other fields have a wide range of applications.)