information-rate

摘　要 文章以空间监控系统为背景,深入研究了JPEG图像压缩标准的实现方法,并基于FPGA对其进行了实现和优化。文中给出了详细的实现方法和优化过程,测试表明达到了很好的效果。 简单介绍了有损静态图像压缩当前有两种比较流行的标准JPEG和JPEG2000。说明了用JPEG方法压缩的原因。 介绍JPEG基本原理：JPEG对灰度图像的压缩处理过程主要包括:图像分割,离散余弦变换(DCT),量化(Quantization),“Z”形排序(Zigzag Scan),差分脉冲编码调制(Differential Pulse Code Modulation,DPCM)对直流系数(DC),行程长度编码(Run-Length Encoding,RLE)对交流系数(AC),霍夫曼(Huffman)编码等。 JPEG标准的特点是离散余弦变换。 比较详细介绍压缩系统的构成和实现。实现提及步骤， JPEG压缩模块设计和编码模块实现细节。 (Abstract Article in the space monitoring system for the background, in-depth study of the JPEG image compression standard implementation methods and carried out based on FPGA implementation and optimization. In this paper, a detailed method of implementation and optimization of the process, testing showed that to achieve good results. Easy introduction of harmful static image compression has two kinds of comparisons that the current popular standard JPEG and JPEG2000. Illustrated by the reasons for JPEG compression method. JPEG introduce the basic principles: JPEG compression of gray-scale image processing include: image segmentation, discrete cosine transform (DCT), quantization (Quantization), "Z"-shaped sort (Zigzag Scan), differential pulse code modulation (Differential Pulse Code Modulation, DPCM) on the DC coefficient (DC), Run Length Encoding (Run-Length Encoding, RLE) of the exchange coefficient (AC), Hoffman (Huffman) coding. JPEG standard is characterized by discrete )

MC-CDMA Walsh code for the communication systems.

matlab 工具箱下载，含各种matlab 处理函数文件(matlab toolbox download matlab processing functions with a variety of documents)

根据轴承实验数据，处理轴承内外圈的实验数据，根据频谱进行数据分析。(According to the bearing experimental data, the experimental data of bearing inner and outer rings are processed, and the data are analyzed according to the spectrum.)

MATLAB入门到精通第十二章的实例MATLAB的程序代码(MATLAB Introduction to the master instance of Chapter XII of the program code MATLAB)

说明：  power算法，可用于求解大型矩阵特征值问题，对小型矩阵同样适用(power algorithm, can be used for solving large matrix eigenvalue problem, apply equally to small matrix)

简易四则运算计算器，使用时需将.m和.fig文件放到matlab工作目录下（本人使用的是R2013，放到bin文件夹即可，其他版本放到对应文件夹，有的是work文件夹），然后在命令窗口输入.m文件的文件名，即可显示一个简易计算器界面。有0-9九个数字供点击输入数，有重置和正负号按钮，界面简洁，功能耐用(Simple arithmetic calculator should be used with the. M and. Fig file into matlab working directory (I use the R2013, into the bin folder to the other versions into the corresponding folder, some work folder) , and then in the command window. filenames m file to display a simple calculator interface. 0-9 nine figures for the number of click enter, and the sign has reset button, the interface is simple, functional and durable)

决策实验分析法是最近兴起的多属性决策方法，主要通过实验的方式对评估对象进行评估分析，实验结果较为客观合理(Decision-making experimental analysis method is a multi-attribute decision-making method that has recently emerged. It mainly evaluates and analyzes the evaluation object through experimental methods. The experimental results are more objective and reasonable.)

牛拉法潮流程序,最经典的电力系统潮流计算matlab代码。有详细的注释和各个子函数的功能介绍。(full AC Newton approach)

BER analysis of nonlinear systems a survey