iirtest

calcul de coefficient mfcc

Introduction to ZigBee standard and research papers for the same is attached.

有限时域差分算法计算Mie散射有限时域差分算法计算Mie散射(Finite-difference time-domain algorithm to calculate the Mie scattering)

说明：  本案例给出了振动信号的时域信号分析，fft分析，低通滤波分析和Hilbert包络分析代码，并将分析结果展现在一个图中进行对比。(This case gives the time domain signal analysis, FFT analysis, low-pass filter analysis and Hilbert envelope analysis code of vibration signal, and shows the analysis results in a figure for comparison.)

关于 matlab的一些应用说明，图像处理中均衡化的应用。文件简单容易明白，而且篇幅少(some of the Matlab Application Note, image processing and balanced application. Document simple and easy to understand, but space!)

PID控制算法简单、鲁棒性强，但其参数整定过程繁琐，整定时需要控制对象的精确数学模型，而且整定往往是针对某一种具体工况进行的，缺乏自学习和自适应能力。模糊神经网络则兼备了模糊逻辑和神经网络的优点，具有函数逼近功能，具有较强的自适应、自学习能力、容错能力和泛化能力。借助于遗传算法对全局性参数进行优化设计，借助于BP算法对局部性参数进行优化，将模糊神经网络和遗传算法引入PID控制参数的整定过程，构造出一种基于模糊神经网络和遗传算法的智能PID控制器(Intelligent controller based on fuzzy neural network and genetic algorithm)

说明：  由simulink搭建的前向差分PID控制系统(Simulink erected by the PID control system prior to the difference)

一天征服傅里叶变换，对傅里叶变换有比较通俗的解释(One day conquer the Fourier transform, Fourier transform of a relatively popular explanation)

我从这里下载一个MATLAB文件来计算激光的模式，拉盖尔-高斯模式，但它不能正常工作。所以我说我自己的函数。这是很简单的功能，我希望它是有效的以及。我用它和后结果我得到了。(i download one matlab file from here to calculate the modes in laser, Laguerre-Gauss modes but it was not working properly. So i wrote my own function. It is pretty simple function, i hope it is efficient as well. i used it and post the result i got.)

matlab下实现研究VSC-HVDC的次同步振荡特性 模型很不好找哦(matlab research under the VSC-HVDC model of sub-synchronous oscillation is 不好找 Oh)