Hadamard–傅里叶变换

利用Matlab编程实现对lena.bmp灰度图象进行QF=50和QF=40的压缩和解压缩，比较二者的PSNR，并且利用霍夫曼编码模拟信道中传输图象。通过了Matlab2009A测试。(Using Matlab program to compress and decompress the gray image Lena.bmp at QF = 50 and QF = 40,as well as comparing the result of two situation.Then using Huffman coding analog channels transmitted images. Adopted Matlab2009A test.)

Kalman滤波元模块代码，可调用扩展为更为复杂的程序。(Kalman filter element module code, call the extension for more complex procedures.)

说明：  搭建双向DC-DC双电路，实现直流微网并网运行蓄电池恒压充放电(A bidirectional DC-DC dual circuit is built to realize the constant voltage charge and discharge of the DC micro-grid connected to the grid)

说明：  1/3倍频程分析。有需要做这方面研究的同志们可以好好看一下。(1/3 octave analysis. There is a need to do research in this area can be a good look comrades.)

说明：  分析矩阵的相关性，即给出两个矩阵，计算两个矩阵之间的距离，并画出矩阵的相关分析图。(this matlab code can compute the two matrix length, and can give analysy ficture )

correct coding for running the stbc in matlab

将周期图、自相关、协方差、改进协方差、Burg五种谱分析法封装为函数，并调用之对三个不同的信号源进行谱估计。(Encapsuler 5 methods of spectrum uation (Periodogram, COR, COV, MCOV, Burg) as functions, and use them to do frequency uation of three different signals.)

数学建模中用来解决最小路径的问题的matlab程序(Mathematical modeling is used to solve the problem of the minimum path matlab program)

含有QPSK调制的matlab卷积编码、维特比译码程序(source for convolutional encoding and viterbi decoding which contained QPSK )