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说明：  matlab 绘图指令应用及开关语句的应用举例，有需要的同学可以看看(matlab drawing instruction applications and the application of a switch statement example, students can see the need to)

说明：  有源电力滤波器是用于动态抑制谐波、补偿无功的新型电力电子装置，控制并主动输出电流的大小、频率和相位，并且快速响应，抵消负载中相应电流，实现了动态跟踪补偿，而且可以既补谐波又补无功和不平衡。(APF:Active power filter)

extract file and the working is to get dct matrix of 256*256 image which is divide into each 8*8 image block

何恺明在CVPR会议上的最佳论文，基于暗通道先验的单幅图像去雾技术，演讲ppt，以及主要matlab程序 (Ho Kai Ming Best Paper in CVPR meeting, based on a priori dark passage to a single image fog technology, presentation ppt, and the main matlab program)

采用PR控制策略的光伏发电并网的simulink仿真图(Simulink simulation of grid connected photovoltaic generation using PR control strategy)

现代信号处理习题答案，详细讲解每个章节的主要内容和课后习题(Modern signal processing problem sets, elaborate on each section of the main content and after-school exercise)

DFIG based wind energy conversion system

重要的格林函数程序，好不容易找到的，希望对大家有用(the matlab code of Green function)

三次差分编码 和一次LZW压缩matlab源码，绝对正确，而且压缩率很高，80 以上，要是有不懂的，可以咨询我。(This is a realisation of lzw compression.If you have some problems ,you can contact with me.)

This code consist of various filters and their comparison, The performance metrics are determined using PSNR value, SSIM value.