Butterworth

multi media card application note

DCT给灰度图像加二值的水印信息，运行显示四幅图，分别是原图像，水印图像，加水印的图像和提取的水印图像(DCT to gray image plus two watermark values, run the show four maps are the original image, watermark image, add watermark image and extracted watermark image)

说明：  最基本的直接扩频中如何用m语言编写语句产生pn序列(generate pn sequence )

MATLAB CODE OF DIFFERENTIAL SEARCH ALGORITHM

matlab 运用PCA算法对图像降维级图像重建代码(matlab image using PCA dimensionality reduction algorithm for image reconstruction code level)

matlab环境下的时频分析，有仿真结果，有程序，希望对初学者有用(matlab Frequency-time analysis)

说明：  安全编程修炼之道英文版和代码,比较详细，推荐(coding_for_security)

用matlab仿真OFDM的十个子程序，打包上传，保证没有重复。全部可运行。(matlab ofdm)

Financial risk analysis on Matlab monte carlo simulation, stock index simulation for geometric Brownian motion, GBM.

转载：卷积编码＋维特比译码的matlab程序(Reprinted: convolutional code+ matlab Viterbi decoding process)