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OFDM multipath fading channel model jakes

matlab柱状图填充图案 可以实现黑白的填充(apply hatch Matlab histogram fills the pattern Black and white can be achieved by filling)

MATLAB精细积分求解微分方程组,有错的地方请专家指教(MATLAB precise integration to solve differential equations, with a wrong place to hire experts to enlighten)

说明：  bp网的程序，设计一个神经网络字符分类器对英文字母进行分类。输入向量含有16个分量，输出向量分别用设置的T向量，还不完善，有待改进(bp network program, character design a neural network classifier to classify the English alphabet. Input vector contains 16 components, respectively T vector output vector set, not perfect, needs improvement)

电机矢量控制模型，控制参数可调，模型可改变成任何电机。(Motor vector control model, adjustable control parameters, the model can be changed to any motor.)

提取声音信号的MFCC特征参数，然后进行匹配，有训练语音，也有测试语音，测试信号既有训练过的，也有没训练过的，都可以识别(The MFCC feature parameters of sound signal are extracted and matched. There are both trained and tested voices. The tested signals can be recognized by both trained and untrained voices.)

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.)

Fortran进行并行计算的讲稿，台湾网站上下的。(Fortran for parallel computing of the script, Taiwan Web site from top to bottom.)

这是一个关于图像识别的程序，可以根据图像中的某些点，识别出图像的形状(This is a program on the image recognition, according to some point in the image, identify the shape of the image)

分数阶傅里叶变换程序，可以设置不同的分数阶参数，实现对信号的时频分析，并具有图形显示(Fractional Fourier transform procedure, different fractional order parameter can be set to achieve the time-frequency analysis, and has a graphical display)