acousticwave

说明：  一维光子晶体透过率曲线模拟，入射角为0.2rad，N=6(One-dimensional photonic crystal transmittance curve of simulation, the incident angle for the 0.2rad, N = 6)

发个大集合，有线性阵列，圆形阵列，矩形阵列，极坐标等(Send a large collection, there is a linear array, circular array, rectangular array, polar coordinates)

说明：  文件是学习matlab过程中关于图形图像处理的源程序(Document is the process of learning matlab image processing on the graphics of the source)

good way to strat learning how to work in android plateforme

介绍了数字通信中的QPSK调制解调的原理，通过用Matlab编写脚本程序对QPSK通信系统的发射和接收过程的具体实现进行模拟仿真，绘出信号在理想信道和加噪信道中模拟传输时的时域图，并对各模块进行了频谱分析，所得到的结果与 理论基本相符，对于理解QPSK系统的性能并在系统的实际应用上作进一步的设计，提供了有效的参考依据。 (The introduction was done with the principle of the QPSK modulation and demodulation in digital communications，a script was written by using Matlab program to CalTy out a simulation of the QPSK communication system．which contains the concrete realization of transmit and receive process．The time-domain diagram is drew separately when the signal transmits in the ideal channel and in the channel with noise，spectral analysis of each module is also done，the results obtained with theoretical results in the main，which provides an effective frame of reference for understanding the performance of QPSK systems，and the practical application in the system to make further designed．)

这是用matlab显示K线图的源码,还没有很多的指标，可以继续完善(this is a matlab m file to express stock chart)

通过导入后缀为.wav的噪声音频信号通过matlab进行频谱分析(Frequency spectrum analysis by importing noise audio signal suffixed with. wav through MATLAB)

id3算法用MATLAB实现决策树分类器程序。(id3 decision tree！)

matlab采集的 噪声源码，有多个资源可供分析，是做音频噪声研究的理想材料(Acquisition noise matlab source, there are several resources available for analysis, so the audio is an ideal material for the noise study)

it is matlab source code implemeted in Matlab 7.6. this is utilized in matlab.