SNR_vs

用于生成低通滤波器传递函数，有调用函数，两个一起才可以用。(Used to generate low-pass filter transfer function. Have to call a function with only two can be used.)

CODE DE RESOLUTION DE L EQUATION D HELMOTZ EN FORMULATION INTEGRALE 2D Problème Fréquentiel Intérieur avec Condition en flux (Neumann)

PESQ measure: ------------- Usage of the PESQ objective measure is as follows: [pesq_mos]=pesq(cleanfile.wav,enhanced.wav) where cleanfile.wav contains the clean speech file and enhanced.wav contains the enhanced file.

一些常用的matlab函数命令，需要用的时候可以方便查看(Matlab function of some commonly used commands, you need to use when you can easily see)

设计一个8阶以内的带通滤波器，通带截止频率fc1=30070HZ，fc2=32170HZ，通带内允许最大衰减0.2dB。设计满足要求的Butterworth滤波器和chebyshev滤波器。以RC运放为基本单元以最易实现的原则完成电路设计及参数选择，并根据设计参数进行幅频特性和相频特性的仿真，给出仿真曲线。分析电路的无源灵敏度。(Design within an 8-order band-pass filter, the passband cutoff frequencies FC1 = 30070HZ, FC2 = 32170HZ allow maximum attenuation 0.2dB within the passband. Designed to meet the requirements of the Butterworth filter and chebyshev filter. RC op amp is the basic unit is the most easy to implement the principle of complete circuit design and parameter selection, and in accordance with the design parameters of the amplitude-frequency characteristics and phase-frequency characteristics of the simulation, simulation curve. Passive sensitivity of the analysis circuit.)

A modified version of PSO algorithm which can be used to search the minimum value inside a specified range. Using f1s.m to test the function!

deep learning一般是学习的层次结构，它也是有一定理论依据的，即模拟人脑的大脑皮层工作，因为大脑皮层的视觉区域也是分层次工作的，越底层的视觉皮层对那些底层特征就越敏感。综上所述，feature learning有这么多应用需求的驱动和生物神经理论上的支持，注定它能够在AI领域中发挥一定的作用。一些实验表明，有些feature learning学习到的特征几乎比所有其它的特征效果要好，比如本文中的ISA模型就是其中一个。(deep learning hierarchy of learning, it is also a certain theoretical basis that simulate the human brain' s cerebral cortex, visual areas of the cerebral cortex is hierarchical work, the more the bottom of the visual cortex is more sensitive to those underlying characteristics . In summary, feature learning so many application needs the support of the drive and biological neural theoretically doomed it to be able to play a certain role in the field of AI. Some experiments show that some feature learning learning to feature almost better than all the other features of the effect of the ISA model such as this is one.)

Electromagnetic Simulation using FDTD Sullivan书中的二维时域有限差分matlab程序(Dimensional FDTD matlab program! Dimensional FDTD Electromagnetic Simulation using FDTD Sullivan book)

Matlab图像处理函数大全 对初学者很有帮助(Matlab image processing functions Daquan helpful for beginners)

说明：  用MATLAB编写的svm源程序，可以实现支持向量机，用于特征分类或提取(MATLAB source code written using svm, support vector machine can be achieved for feature classification or extraction)