gerschgorin

2-D median filtering with better boundaries response. A modified version of the MATLAB function medfilt2 that deals better with the boundaries. Unlike medfilt2, the function medfilt2m does not pad the matrix with extra elements on the edges, but computes the median using only elements in the matrix.

针对高精度的畸变图像,提出了一种基于最小二乘影像匹配的高精度畸变图像矫正算 法. 算法首先利用特征提取与边缘检测对图像进行预处理,并且将特征匹配与最小二乘算法相 结合,从而实现了图像与模板之间精确的子像素定位与匹配. 实验表明,该算法较好的解决了目前高精度畸变图像矫正算法中普遍存在的定位和匹配精度较差的缺陷,图像矫正效果良好,是一种有效的畸变图像矫正算法.(Image distortion for high-precision, a least-squares image matching based on high-precision image distortion correction algorithm. First of all, the use of feature extraction algorithm for edge detection and image pre-processing, and will feature matching with a combination of least-squares algorithm in order to achieve the image and the template between the sub-pixel accurate positioning and matching. The experimental results show that the algorithm has better accuracy of the solution to the current distortion prevalent image correction algorithm to match the accuracy of the positioning and less defects, image correction effect well, is an effective algorithm to correct image distortion.)

DCT数字水印算法及其MATLAB实现.pdf(DCT&&MATLAB实现.pdf)

1.本程序是自己刚刚接触SAR时编写的时域星载SAR点目标回波仿真，包含了卫星轨道模型、计算星目斜距时用到的各种坐标系转换、SAR回波计算模型以及简单的SAR成像模型，希望对初学者有所帮助。 2.相应的参考资料可查找《卫星轨道姿态动力学与控制》及《魏钟铨_合成孔径雷达卫星》；(1. This program is just contact with their own prepared when the time domain SAR spaceborne SAR point target echo simulation, contains the satellite orbit model, the satellite project when the use of a variety of slant range coordinate system conversion, SAR echo calculation model and SAR imaging model simple, want to help beginners. 2. The corresponding reference can be to find " satellite attitude and orbit dynamics and control" and " Wei Zhong Quan _ synthetic aperture radar satellites" )

基于DWT及DCT的数字水印的代码，该改代码是分开形式给出，具体结果自己可以运行试试，很不错的(key word is DWT AND DCT ,if you are interested in it ,you can call me ,we can talk about it.)

认知无线电 通信原理 产生qpsk程序 并画出图像(qpsk program)

求解常微分方程组的bvp解算器的使用说明和教程和实例(tutorial and documentary and examples for ODE bvp)

PARTICLE SWARM OPTIMIZATION BASIC CODE

信号1维和2维周期性双正交基的小波分析，主要是用作滤波方面，可构造非对称滤波器。(Wavelet analysis signal a 2-dimensional and two-dimensional periodic orthogonal basis, mainly used for filtering, the filter can be constructed asymmetric.)

此文档对MATLAB的所有常使用的函数进行的详细说明和总结，对于初学者很实用。(This document on all the commonly used MATLAB function of the detailed description and summary, very useful for beginners.)