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OFDM(Orthogonal Frequency Division Multiplexing)即正交频分复用技术，实际上OFDM是MCM Multi-CarrierModulation，多载波调制的一种。其主要思想是：将信道分成若干正交子信道，将高速数据信号转换成并行的低速子数据流，调制到在每个子信道上进行传输。正交信号可以通过在接收端采用相关技术来分开，这样可以减少子信道之间的相互干扰 ICI 。每个子信道上的信号带宽小于信道的相关带宽，因此每个子信道上的可以看成平坦性衰落，从而可以消除符号间干扰。而且由于每个子信道的带宽仅仅是原信道带宽的一小部分，信道均衡变得相对容易。本程序实现OFDM与QPSK技术的比较(This program realization technology and the OFDM QPSK technology)

文件中包含word文档报告 设雷达采用匹配滤波完成脉冲压缩，采集频率fs=420MHz，仿真雷达回波，并绘出家Hamming窗前后的脉压波形。（提示：通过正确设定采集波门，减少数据量） 设雷达采用Dechirp方式完成脉冲压缩，其中参考距离位于（0，0），采集频率为10MHz，距离采样点数512点，仿真雷达回波，并绘出加Hamming窗前后的脉压波形（提示：通过正确设定采集波门，减少数据量）。(Word document file contains the report of the completion of matched filter-based radar uses pulse compression, gathering frequency fs = 420MHz, simulation of radar echo, and draw the house after the pulse pressure waveform Hamming window. (Hint: By setting the correct collection wave door, reducing the amount of data), based radar uses pulse compression Dechirp manner, in which reference distance at (0,0), collection frequency of 10MHz, from the sampling points 512 points, simulation, radar echo, and draw the increase of pulse pressure waveform after the Hamming window (hint: set up collection waves through the correct door, reducing the amount of data).)

采用RS码技术的系统仿真，程序说明详尽，是学习通信技术的一个难得的好材料。(RS code using the system simulation, a detailed description of the procedures is to learn a valuable communication technologies good material.)

McGraw.Hill出版社的MATLAB.Demystified 英文版(McGraw.Hill Press MATLAB.Demystified English)

假设给定一个加权连通图G，G的边集合为E，顶点个数为n，要求其一棵最小生成树T。(Suppose given a weighted connected graph G, G the edge set is E, the number of vertices is n, requiring a minimum spanning tree T.)

this is image frequency transform,vevr good(This is the image frequency transform, vevr good)

RLE图像压缩编码，多个例子程序，可以参考(RLE image compression coding, multiple example programs)

matlab工具箱简介,包含各个工具箱的作用(About matlab toolbox, including the role of each kit)

LTE中SCME信道的matlab仿真代码(SCME channel simulation code in LTE)

用matlab编程和数值计算的书籍，里面有许多源代码。(And numerical calculation using matlab programming books, there are many source code.)