final-report

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)

说明：  一个很有用的函数，功能是产生规定字长以及规定汉明重量的码字，常用于channel coding开发(A useful function, function is to have the provisions of word length and weight of the provisions of Hamming code word, commonly used in the development of channel coding)

说明：  通信传输过程中使用TCM 维特比编译码的源程序 包括编码和解码两个子程序，可以绘出误码率曲线(Communication transmission TCM Viterbi decoding using the source code, including encoding and decoding of two subroutines, you can draw the curve of bit error rate)

energy efficiency computation when wireless body area sensor node communicates to the coordinator through wireless link in the presence of a relay node when the distance is varied

数值分析基于Matlab环境下的不选主元的Gauss消去法(Numerical analysis is not based on Matlab environment pivoting of Gauss elimination method)

语种识别matlab程序，里面包括gmm，hmm模型的训练和测试，，，，，，(Language recognition matlab program, which includes training and testing gmm, hmm model,,,,,,)

这本电子书的名字是"基于matlab_simulink的系统仿真技术及应用"，同样对于学习通信的人士来说挺不错的，但是用的时候请下载超星阅览器(This e-book name is " based on matlab_simulink System Simulation Technology and Application" , on the same people who have to learn to communicate quite well, but when used, download SSReader)

buck-boost的Matlabsimulink仿真(Matlabsimulink simulation of the buck-boost)

4键值频移键控的一个代码示例，可以画出频谱图，可以更改码元长度(4 key frequency shift keying)

i need matlab code regrading my project in image processing