Simple-Clustering

计算一幅图像的pnsr数值 只需要把要处理的图像直接输入就可以了 简单 方便(Calculation of numerical pnsr an image just to have to deal with the direct input of images can be a simple and convenient)

可以实现FFT变化的时域图分析，可以清楚的知晓信号随时间的规律变化(Changes can achieve FFT time domain analysis, the signal can be clearly aware of the law change with time)

本文首先介绍了三电平逆变器的工作原理，以及空间电压矢量控制技术的基本原理。 其次，详细分析了传统三电平SVPWM算法，对每个主要模块都提出两种MATLAB仿真方法，归纳总结仿真技巧。(This paper firstly introduces the working principle of three-level inverter, and the basic principle of space voltage vector control technology. Second, traditional three-level SVPWM algorithm is analyzed in detail, for each main module proposed two MATLAB simulation method, sum up the simulation technique. )

DCT and Image Compression In the JPEG image compression algorithm, the input image is divided into 8-by-8 or 16-by-16 blocks, and the two-dimensional DCT is computed for each block. The DCT coefficients are then quantized, coded, and transmitted. The JPEG receiver (or JPEG file reader) decodes the quantized DCT coefficients, computes the inverse two-dimensional DCT of each block, and then puts the blocks back together into a single image. For typical images, many of the DCT coefficients have values close to zero these coefficients can be discarded without seriously affecting the quality of the reconstructed image. The example code below computes the two-dimensional DCT of 8-by-8 blocks in the input image, discards (sets to zero) all but 10 of the 64 DCT coefficients in each block, and then reconstructs the image using the two-dimensional inverse DCT of each block. The transform matrix computation method is used.

说明：  本课题基于MATLAB平台的数字信号处理仿真演示系统。数字信号即离散信号，本设计带有一个丰富得GUI人机交互界面，一共包括4个部分，分别为：离散时间信号的卷积，基本函数的Z变换（单位阶跃信号，脉冲信号，斜变信号，正余弦信号，指数系列信号），Z变换的基本性质（线性，位移，z域尺度变换，时域卷积），傅里叶变换的基本性质。是一个不错的选题，GUI设计逻辑清晰，章节清晰，层次明了。(This project is based on MATLAB platform of digital signal processing simulation demonstration system. Digital signal is discrete signal. This design has a rich GUI human-computer interface, including four parts: convolution of discrete-time signal, Z-transform of basic function (unit step signal, pulse signal, oblique signal, sine cosine signal, exponential series signal), basic properties of Z-transform (linear, displacement, z-domain scale transformation, time-domain convolution), The basic properties of Fourier transform. GUI design logic is clear, chapter is clear, level is clear.)

特征提取例3.3 以年龄为论域，取 。Zadeh给出了“年轻”的模糊集Y，其隶属函数为 (Example 3.3 Feature Extraction of age on the field, take. Zadeh gives the " young" fuzzy sets Y, its membership function)

用遗传算法优化对称振子天线阵列的副瓣电平(Genetic Algorithms sidelobes symmetrical dipole antenna array)

a matlab file to develop models for underwater acoustic communication networks

onduleur classique ........................

边界造波法udf,可应用于fluent软件2D水槽的波浪生成。(Boundary wave method udf, the software can be applied to 2D sink fluent waves generated.)