matlab_juzhen

该文件包含了一些常用的声辐射噪声的特征提取方法，包括波形的包络特征，高阶谱特征，分形维特征，奇异指数特征等。(The document contains some common acoustic feature extraction method of noise, including waveform envelope characteristics, higher order spectral features, characteristic of fractal dimension, singular index characteristics.)

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.)

较简单的KMeans聚类算法实现，编程语言matlab(Clustering KMeans relatively simple algorithm, programming language matlab)

BPSK调制源码。原创。参数开放。绝对宜用。请大家给意见(BPSK modulation source. Original. Open parameters. Absolutely suitable. Please everyone give their views)

正交扩频码ooc的matlab代码。五个用户情况(Orthogonal spreading code of the matlab code for ooc. Five users of)

VPI与matlab联合仿真，自定义信号产生程序(matlab and VPI)

基于Matlab平台将LDPC码与64QAM结合进行仿真，得出误码率曲线图。(LDPC codes based on Matlab platform will combine with 64QAM simulation results BER curve.)

基本混沌系统的同步程序，用matlab编写，并且在其他系统中也是通用的。(chaos system is made by matlab language,which is suitable for other system.)

fourier series coefficient

这个文件是matlab学习中的一些典型的例子，对于学习matlab的同学很有帮助。(This file is matlab learning some typical examples, very helpful for students to learn matlab.)