CH7programme

3 MATLAB functions for simulation of OFDM signal in Rayleigh fading channel. Including models for OFDM frame generating, cyclic prefix, pramble, as well as model for Rayleigh channel, QAM modulation function and a example of test process.

对轴承故障信号进行小波包分解，重构能量最大的频段信号，并对该重构信号计算样本熵(Decomposing the bearing fault signal using waveletpackage method ,and reconstruct the maximum energy frequency band ,and then accumulate the sample entropy of the reconstructed signal )

IEC60601-1-8音频报警标准提供了富有和声的音调，以便使它们容易定位、并能防止屏蔽的干扰。范畴与对应旋律的数量都有限，从而能获得容易掌握的不同报警顺序。另外，报警的优先权决定了报警中音符的数量，以及音符顺序的动态特征。这使得人们容易确定报警的紧急程度。这样，IEC60601-1-8标准解决了许多以前报警的限制因素，而且将有助于改善患者的安全性。(IEC60601-1-8 standard audio alarm provides a rich harmonic tone in order to make them easier to locate and prevent interference shielding. Areas and have limited the number corresponding to the melody, so that it can be easy to grasp the order of the different alarm. In addition, the alarm priority determines the number of alarm in the note, and note the order of the dynamic features. This makes it easy to determine the urgency of the alarm. This, IEC60601-1-8 standard solution before the alarm of many constraints, but will also help improve patient safety.)

说明：  利用提升的二代小波，对图像进行去噪处理，通过不同的去噪过程比较，显示优势(Used to enhance the second generation wavelet, the image denoising, denoising process through different comparison shows advantages)

matlab三相异步交流电机矢量控制模型(matlab three-phase asynchronous AC motor vector control model)

滤波器和信号频谱分析的MATLAB的SIMULINK仿真，不错的程序(filter and spetrum analyse)

matlab在数学建模中聚内分析的代码,这些代码基本上可以解决建模中的聚内分析了。(atlab in mathematical modeling in the code gather analysis, these code basically can solve modeling of analysis in together. )

Matlab hough变换示例及程序，比较实用(Matlab hough transform examples and procedures, more practical)

overlap save is used to save method in dsp

dynamic time warping