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这里面有两个程序，两个都是采用4QAM调制。不过个人觉得第一个更容易懂，因为写的很有条理。我改的那个程序就是根据这个来的。 不过在这里面有个问题就是信道系数只能是由高到低，大家可以试试，改成[0.227 0.46 0.688 0.46 0.227]这个是老师给我的仿真中常用的信道系数，这个成为归一化信道，就是系数平方和为1. 第二个程序没有涉及到信道系数，但是这个程序当中，在128个子载波中，前后有32个空载波，这个在OFDM中也是经常用的，这样可以降低误码率。 (And there are two programs, two are based on 4QAM modulation. But personally feel that the first is easier, because the writing is organized. I changed that procedure is based on the past. However, there is a problem in that there is only channel coefficients from high to low, we can try and change into [0.227 0.46 0.688 0.46 0.227] This is the teacher gave me the simulation channel coefficient commonly used, this became normalized channel, is coefficient of the square and is 1. The second program is not related to channel coefficients, but this program which, in the 128 sub-carriers, the before and after the 32 air carriers, the in OFDM is also often used, which can reduce the error rate.)

Numerical solution of 1D wave equation in finite differences (matlab code)

说明：  ASK仿真，包含调制解调，加高斯白噪声，matlab程序(ASK simulation, including the modem, add Gaussian white noise, matlab program)

利用平面波的方法计算三角格子的光子晶体的能带结构(using the plane-wave method of calculation of the triangular lattice photonic crystal structure of the band)

Simulink 仿真环境基础学习的教程文档。对于初学者来说是很好的入门。(Simulink simulation environment based learning tutorial document. For beginners it is a good entry.)

dsp实时处理，matlab仿真程序，应用于语音信号处理(dsp real-time processing, matlab simulation program, used in speech signal processing)

说明：  对一列数据波形进行画图，频谱、功率谱分析。参数根据需要改动一下即可(Waveform data of a drawing, spectrum, power spectrum analysis. Click to change parameters as needed)

说明：  输入信号为谐波信号，用brug算法运算线性模型系数。(Input signal for the harmonic signal, using brug coefficient linear model algorithm.)

压缩程序为计算向量场的程序，初始参数可以自己按要求更改，隶属度程序可以给出结果图形，参数依然可以在matlab环境下调整。(Compression program for the calculation of the vector field program, the initial parameters can be changed as required, the membership program can give results graphics parameters can still adjust the Matlab environment.)