97288435Speech_signal_short_time_analysis

根据书本的理论，自己动手编写了MPEG-2的实现算法，编译可通过(MPEG-2)

OFDM系统的简单代码，便于初学者理解，设置了N=128个信道，传送1,0的随机数，并加入fading和AWGN noise(OFDM system simple codes, for beginners to be understood that the channel 128 is provided, fading and AWGN noise added)

说明：  5节点 基于高斯赛德尔方法的潮流计算,bingdedao jieguo(5 Based on the trend of high nodes Sisaideer method of calculation)

使用吗matlab语言，实现很多模式识别上的经典算法，如PPerceptron_Batch算法等，已通过测试。 (Use the Matlab language, and many classic pattern recognition algorithm, such as PPerceptron_Batch algorithm has been tested.)

遗传算法，一个不错的程序，可以试试看，改进了一点点，大学共同探讨 了(Genetic algorithm (ga), a good program, can try to improve a little bit, the university is discussed )

关于通信原理matlab实现的很好的一本书 (The good Communication Theory matlab a book)

Matlab Hwk for Datamining / Machine Learning

通过计算机上的多媒体卡，按照下列过程进行声音信号的录制、处理和回放，观察处理前后的波形，同时比较声音信号处理前后的效果。 1、 将录制的信号反褶以后播放（反褶以后的信号移到t=0点开始）。 2、 将录制的信号改变取样率（相当于进行了尺度变化）以后播放。 3、 将录制以后的信号延时1s，并将幅度降低一半，接着与原来的信号相加，然后播放。(Multimedia card on your computer, follow the process for recording, processing, and playback sound signal waveform observed before and after treatment, while comparative effectiveness sound signal before and after treatment. 1, the signal recorded after deconvolution player (deconvolution signal moves after t = start 0:00). 2, the signal is changing the sample rate recording (is equivalent to a scale change) later playback. 3, after the recorded signal delay 1s, and reduce the rate by half, and then with the original signal are added, then play it.)

混合扩频DS/FH仿真程序，从原始信号通过伪随机码，跳频码转变为混合扩频信号，再依次解跳解扩，最后通过低通滤波器恢复出信号。(Hybrid spread spectrum DS/FH simulation program, from the original signal by pseudo random code, frequency hopping code into a hybrid spread spectrum signal, and then hopping despreading, finally through a low-pass filter to recover the signal.)

direct contrô le torque MAS