D2Q9-2D

STBC_MIMO_OFDM.m 这是一个基于空时分组编码的MIMO_OFDM通信系统的仿真设计。 此系统包括QPSK调制解调，IFFT调制，空时编解码，基于训 ( STBC_MIMO_OFDM.m This is a space-time block coding based on MIMO_OFDM Communication System Simulation. This system consists of QPSK modulation and demodulation, IFFT modulation, space-time coding and decoding, based on training)

找了很久的matlab解方程程序，相当丰富，对学数学的同学很有帮助(To find a long process of solving equations matlab, very rich, very helpful for students of mathematics)

matlab code for gesture recognization

information.m用来计算两个一维向量x和y的互信息。把压缩包中两个程序放在一起就可以运行(information.m used to calculate the two one-dimensional vectors x and y of the mutual information. The compressed package of two programs can run together)

一维扩散方程的有限差分数值模拟，采用第三边界条件(The finite difference numerical simulation of one-dimensional diffusion equation adopts third boundary conditions.)

对文本文件进行huffman编码，并显示huffman树(to the text document for Huffman coding, and that Huffman tree)

对于彩色图像，用直方图的方法去掉雾，使得图像清晰(For color images, using the histogram method to remove fog, making the image clear)

混频系统分析，包括零极点图、单位冲击响应和频率响应(Mixing system analysis, including pole-zero map, unit impulse response and frequency response)

这个程序即可以读取XMl文件并转换成matlab结构体，也可以把matlab结构体转换成xml格式存放。xml是最被看好的数据存储方式，xml格式的通用性减轻了大家编写格式转换代码的痛苦。(This process that can read XML files and converted into matlab structure can also be put into matlab structure xml format. xml are the most promising way of data storage, xml format, reducing the U.S. generic format conversion code preparation suffering.)

image quality measurement