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基于粒子群算法的函数求最大值的matlab程序，自己照书编写的(PSO algorithm based on the function of matlab procedures for the maximum, according to the book written their own)

i upload a matlab code which can calculate density of atmosphere and temperature in altitude of over 100 km

基于灰色理论的负荷预测的程序，可用于MATLAB神经网络预测，通过负荷自身的变化来预测未来的负荷值(The load forecasting procedure based on grey theory can be used in MATLAB neural network prediction, and the future load value can be predicted by the change of load itself.)

This package implements fast compressed sensing using structurally random matrices (SRM) described in [1] and [2]. As the package is still under development any comments or bug reports are highly welcome.

是一些常用的时域特征提取方法，再次进行整合，方便大家的提取(Are some commonly used time domain feature extraction method, integrate again, facilitate everybody extraction )

电力电子三相桥式整流matlab仿真电路(Three-phase bridge rectifier power electronic circuit simulation matlab)

简单的OFDM流程，使用matlab自带的QAM函数，适合初学者(OFDM simple process, using the built-in QAM matlab function, suitable for beginners)

基于Matlab编写的MIMO通信系统仿真，代码是在课设的报告；包含数字通信系统 jXFSeJ仿真流程，实现基本的信道编译码、调制解调等通信模块。学习并实现MIMO空时处理技术学习性能分析的思路和方法，包含 pmKzprT解码算法。(Based on the Matlab MIMO communication system simulation, code is class-based reporting jXFSeJ contains digital communication system simulation process, to achieve the basic channel coding, modulation and demodulation and other communication modules. Learn and implement ideas and methods MIMO space-time processing performance analysis of technological learning, comprising pmKzprT decoding algorithm)

说明：  单径瑞利信道，多径瑞利信道仿真模拟，用Matlab进行仿真(Simulation of single-path Rayleigh channel and multi-path Rayleigh channel using MATLAB)

This is a JPEG encoding & decoding program of still image. It does not use level shifting. Discrete Cosine transform (DCT) is performed both by classical & Chen s Flowgraph methods. Predefined JPEG quantization array & zigzag order are used here. RUN - LEVEL coding is used instead of Huffman coding. Compression ratio is compared for each DCT method. Effect of coarse and fine quantization is also examined. The execution time of 2 DCT methods is also checked. In addition, most energatic DCT coefficients are also applied to examine the effect in MatLab 7.4.0 R2007a. Input is 9 gray scale pictures & output is 9*9=81 pictures to compare. Blocking effect is obvious. (This is a JPEG encoding & decoding program of still image. It does not use level shifting. Discrete Cosine transform (DCT) is performed both by classical & Chen s Flowgraph methods. Predefined JPEG quantization array & zigzag order are used here. RUN - LEVEL coding is used instead of Huffman coding. Compression ratio is compared for each DCT method. Effect of coarse and fine quantization is also examined. The execution time of 2 DCT methods is also checked. In addition, most energatic DCT coefficients are also applied to examine the effect in MatLab 7.4.0 R2007a. Input is 9 gray scale pictures & output is 9*9=81 pictures to compare. Blocking effect is obvious. )