filter

说明：  防碰撞纯扩展ALOHA的matlab仿真算法(Pure ALOHA anti-collision expansion of the simulation algorithm matlab)

对比dct和dwt在图像数字水印应用中的特点，分析其特性。(contrast Extra dwt and the application of digital watermarking images of features, analysis of their identity.)

该代码实现了以2为因子的图像升采样和降采样功能。 降采样包括使用平滑滤波器(with using the averaging filter)和不使用平滑滤波器(without using the averaging filter)两种方法。 升采样包括像素点直接复制(pixel replication method)和线性插值(bilinear interpolatoin method)两种方法。 降采样方法和升采样方法共有4种组合。程序运行后，给出了一个原始图片和四个结果图片。 图片1.原始图片。 图片2.平滑滤波器降采样&像素点直接复制升采样。 图片3.平滑滤波器降采样&线性插值升采样。 图片4.不使用平滑滤波器降采样&像素点直接复制升采样。 图片5.不使用平滑滤波器降采样&线性插值升采样。 (The code to achieve a 2-factor image upsampling and downsampling function. Down-sampling (with using the averaging filter) and do not use smoothing filter (without using the averaging filter) are two ways to use the smoothing filter. Upsampling including the pixels copied directly (pixel replication method) and linear interpolation (bilinear interpolatoin method) two methods. Down-sampling method and liters a total of four combinations of sampling methods. The program is running, it shows a picture of an original picture and four results. Picture 1 original picture. Photo 2. Smoothing filter downsampling & the pixel directly copied liter sample. Photo 3. Smoothing filter downsampling & the linear interpolation liter sampling. Picture 4. Smoothing filter down-sampling & the pixels directly copied liter sampling. Picture 5. Use smoothing filter down-sampling & the linear interpolation liter sampling.)

it is matlab m file

数字图像处理的一个作业，包含理想高通 巴特沃斯高通 高斯高通的频域增强的作业(A digital image processing operations, including the ideal high-pass Butterworth high-pass Gaussian high-pass frequency domain enhancement operation)

说明：  TIMIT语音数据库,希望给语音研究者提供帮助。(TIMIT speech database, I want to give help to the researchers of voice .)

Zadoff chu PN sequence generation and testing its properties

该文档是《粒子滤波原理及应用MATLAB仿真》一书的配套例程，对于学习粒子滤波算法的MATLAB实现很有帮助(This document is a companion routine to the book Particle Filtering Theory and Application of MATLAB Simulation. It is helpful for learning MATLAB implementation of particle filter algorithm.)

G729 Annex A MATLAB CODE

雷达系统与分析（MATLAB版）的源程序，是比较老版本的源程序(Radar Systems and Analysis (MATLAB version) source code, it is more the old version of the source)