pulse_response_recognition

基于方差一致性准则对图像进行四叉树分解！(variance quadtree)

图像分割是进行图像理解与分析的基础,是图像工程技术中的一个重要问题, 也是图像处理的经典难题。彩色图像比灰度图像具有 更多的视觉信息, 因而受到了越来越多的重视。文章将彩色图像的分割技术分为三大类,并分别加以系统概括, 分析了各种方法的优缺点。(Image segmentation is the image understanding and analysis of the basis of the image engineering technology is an important issue, but also the classical image processing problems. Color image than the gray image with more visual information, which are more and more attention. Article will color image segmentation techniques into three categories, and to the system were summarized, analyzed the advantages and disadvantages of each method.)

Matlab script for Alamouti code

基于OFDM的仿真程序，完整版，已完成仿真，并验证可行(Based on OFDM simulation program, the full version, simulation has been completed, and validation is feasible)

说明：  数字信号处理，滤波，维纳滤波器，维纳—霍夫方程(Digital signal processing, filtering, Wiener filter, Wiener- Hoff equation)

This paper presents a novel algorithm of hiding secret messages by applying mathematical lemmas and information theory. The proposed algorithm can hide more information with acceptable embedded rate and achieves requirements of information hiding algorithm and simply information extracting. The main idea is applying modern algebra to solve the information hiding problem in multimedia. In order to prevent some attacks on stganography, hidden initial bits of image data pixels are chosen randomly. The extracted information are achieved without the reference of the original image and extracted keys. The experiment results show that our approach is effective and reliable.

射频方面的资料，里面有详细的M文件，希望对大家有用。(Radio frequency information, there are detailed paper M, in the hope that useful to everyone.)

图像处理，图像的峰值信噪比PSNR，matlab代码例程，验证可用(Image processing, image the peak signal to noise ratio PSNR, matlab code routines can be used to verify)

说明：  可以实现一幅图像中彩色边缘的提取，实在matlab的条件下，有多种算子(Can achieve a color image edge extraction, it is matlab conditions, a variety of operator)

matlab中函数检索工具。包含函数使用说明，对学习matlab很有帮助。(matlab functions in search tools. Contains functions for use, to learn matlab helpful.)