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瑞利衰落信道（Rayleigh fading channel）是一种无线电信号传播环境的统计模型。这种模型假设信号通过无线信道之后，其信号幅度是随机的，即“衰落”，并且其包络服从瑞利分布。(Rayleigh fading channel (Rayleigh fading channel) is a radio signal propagation environment, the statistical model. The model assumed that after the signal through the wireless channel, the signal amplitude is random, that is, " fading" and subject to its Rayleigh distribution envelope.)

程序功能：模拟DCT编码解码过程，生成带“块效应”的图像 实验图片：lena.jpg(512*512) 步骤：彩色图像→灰度图像→DCT→量化→反量化→IDCT→重构图像并保存( Program features: Analog DCT encoding and decoding process, generated with the " block effect" image Experimental Image: lena.jpg (512* 512) steps of: a color image grayscale images → → → inverse quantization quantized DCT → → IDCT → weight configuration and save the image)

说明：  the best way to learn ac electronics

MATLAB GUI设计学习手记（第二版）源程序 第1章 本书推荐的学习方法： 1）若您是一个MATLAB初学者，且有充裕的时间来学习GUI设计，您可以从本书的第1章开始循序渐进地学习。 2）若您是一位MATLAB初学者，且时间非常紧迫，建议您先学好第1章，然后依次学习第4章、第5章和第6章，其他章节请根据项目需要有选择性地学习。 3）若您已经掌握了MATLAB的基础语法知识，有一定的MATLAB编程基础，也请浏览一下第1章的内容，尤其是专题分析部分。然后先学习本书第4、5和6章，其他章节请根据项目需要有选择性地学习。 4）若您是一位MATLAB GUI方面的专家或老师，您可以将本书作为一本教学的参考书，本书内容全面、讲解详实、代码精炼，是不可多得的GUI宝典。 (MATLAB GUI design learning Hearts (second edition) source Chapter 1 book recommended learning methods: 1) If you are a MATLAB beginners, and there is plenty of time to learn GUI design, you can start from Chapter 1 of the book The step-by-step learning. 2) If you are a MATLAB beginners, and the time is very tight, it is recommended that you first learn to Chapter 1, followed by learning Chapter 4, Chapter 5 and Chapter 6, in other sections based on project needs selective learning . 3) If you have mastered the basic grammar of the MATLAB, the MATLAB Programming Fundamentals, please visit the Chapter 1, in particular thematic analysis section. First learning book chapters 4, 5 and 6, then the other chapters selective learning based on project needs. 4) If you are an expert or teacher of a MATLAB GUI, you can book as a teaching reference books, the book is comprehensive, explain the detailed, refined code, is a rare GUI canon.)

说明：  信道 估计中QAM的 代码 极具参考价值 很值得以看(Code channel estimation reference value is worth to see)

站长！这是使用LDA和PCA模式识别方法对人脸特征进行提取计算的Matlab程序框架，比较好！(head! This is the LDA and the use of pattern recognition methods on PCA Facial Feature Extraction for the Matlab program, good!)

列文森-杜宾算法，用于语音的线性预测控制中，也可以用于谱包络。(Levenson-Durbin algorithm for voice linear predictive control, but also can be used for spectral envelope.)

双线性插值图像放大程序，该程序只对二值图像进行放缩。(Bilinear interpolation image to enlarge the program, the program only for binary image scaling.)

基于分形理论与NPW模型的针板电极沿面放电时电树枝物理现象的计算机模拟(Simulation of electrial treeing in a needle-plate configuration based on fractal theory and NPW model.)

finite element for waveguide