zp_2D

语音信号中用语谱图来直观的表示信号随时间变化的频谱特性。(Speech signal in terms of spectrum to visually represent the signal time-varying spectrum characteristics. )

主要是对图像实现DFT,DCT变换，利用二维小波分析对图像作二层小波分解，显示条状图，十字图及频谱等(Realize the image is mainly DFT, DCT transform, the use of two-dimensional wavelet analysis of images for the second floor of wavelet decomposition, indicating strip maps, charts and cross spectrum)

class to produce an X.509 Version 3 certificate.

坂村健先生简介,。世界著名的TRON计算机系统结构就是最早由坂村先生研究创立的。(A simple introduction of Ken Sakamura. He is the father of Tron Tron, now he focus on reseaching of ubiquitous computing.)

butterworth filter for image processing

说明：  本书全面介绍了最新的MATLAB的全部命令。包括算法等。(The latest book is a comprehensive introduction to all the MATLAB commands. Including the algorithm.)

添加水印，在图项中添加，matlab，实现图像的保护等等 (Add watermark, add items in the map, matlab, image protection, etc.)

Tools,tutorials, and exaples for using matlab simulink

matlab simulation of a direct sequence spread specrum

this code to input 8 different data and make them out sequentialy