rwtising

arnold加密算法的matlab实现，arnold加密算法的matlab实现(arnold encryption algorithm matlab implementation)

A MATLAB code to Solve diffusion problem 2D in Cylindrical coordinate which uses gen_mesh_cylindrical.m

通过分析组织图、穿综图和纹板图三者的关系,在对织物上机图进行矩阵建模的基础上,提出了一种基于Matlab程序设计自动产生并绘制上机图的新方法.(By analyzing the organization chart, diagram and pattern heald board map of the three, on the basis of the fabric machine diagram matrix modeling, is proposed based on Matlab programming automatically generated and new ways to draw on the local map.)

说明：  用matlab语言实现单频脉冲信号（CW）的时域波形、频域图像、模糊度图。(The time-domain waveform, frequency-domain image and ambiguity map of single frequency pulse signal (CW) are realized by MATLAB.)

homework 5 given to me by my lecturer

说明：  基于压缩感知思想的图像分块压缩与重构方法 考虑到大多数图像信号信息分布有差异, 编码端, 在对图像分块的基础上, 融合熵估计 和边缘检测方法计算各图像块的信息含量, 再从两个不同的角度进行分类采样: 依据信息量多少将图像块分为平滑、过渡和纹理3 类, 使用不同的采样率采样 依据信息量的分布特征, 采用不同的采样率分配策略进行采样. 在解码端, 根据不同类型的图像块构造不同的线性算子进行重构, 再运用改 进的迭代阈值算法去除块效应和噪声. 实验证明, 算法在提升图像重构质量的同时缩短了重构时间,并且对纹理边缘多的图像的重构效果较其他方法理想.(Considering that most information of the image signal difference distribution, the encoding side, in the right image sub-blocks based on the integration entropy estimation And edge detection method for calculating the information content of each image block, and two different angles classification sampling: The number of image blocks based on the amount of information into a smooth, transition and texture three classes, using different sampling rates based on the amount of information distribution characteristics, using different sampling sampling rate allocation strategy. in the decoding side, depending on the type of image blocks to construct different linear operator reconstructed, re-use change Iterative thresholding algorithm into blockiness and noise removal experiments show image reconstruction algorithm to enhance the quality while reducing reconfiguration time, and much of the texture edge image reconstruction results are satisfactory compared to other methods.)

dsp means digital signal processing it contain different codes like codec( coder+ decoder) fft = fast fourer transform

三维的FDTD模拟电磁场仿真程序。采用PML边界。(Three-dimensional FDTD simulation of electromagnetic field simulation program. Using PML boundary.)

Reshapes vector data to grid

压缩感知的代码，里面有好多测量矩阵可以挑选，挺好挺全的代码(Compressed sensing code, there are a lot of measurement matrix can pick, very good full code)