sanxiangbulekong

说明：  基于MATLAB的任意时刻三相短路电流计算(MATLAB-based three-phase short-circuit current calculations at any time)

内点法是一种优化算法，速度快算法简单。对解决潮流计算有很大帮助(Interior point method is an optimization algorithm, fast algorithm is simple. Of great help to solve the power flow calculation)

this function perform vector quantization on image by using matlab program ..

rough set for clustering version 1

小波降噪、时频分析等方法，系统地研究航天电子设备多余物噪声检测过程中各操作变量和微粒物理参数对声波频谱的影响。通过单因素试验，详细分析了微粒粒径、振动力学条件中加速度和频率等3因素对声音信号频谱分布的影响规律，比较了短时傅里叶变换和小波变换的特点。该结果为进一步识别多余物微粒的参数提供了指导依据(the complexity of the material interaction and the properties of the particles themselves make the received signal difficult to analyse. This paper based on particle collision sound wave mechanism, using the methods of wavelet de-noising, time-frequency analysis and so on, this paper systematically studies the influence of various operating variables and particle physics parameters on the sound spectrum in the process of detecting the noise of aerospace electronic equipment. Through the single factor test, the influences of the three factors such as acceleration and frequency on the spectral distribution of the sound signal are analyse in detail, and the characteristics of the short-time Fourier transform and the wavelet transform are compared. The result provides a guideline for further identification of the parameters of the extraneous particles.)

说明：  本书对以Matlab为基础，从数字信号处理及图像处理的原理和算法入手，着重阐述用Matlab实现数字信号处理及图像处理的重要算法。(Book, Matlab-based, from digital signal processing and image processing theory and algorithms to start, focusing on the digital signal processing using Matlab and the importance of image processing algorithms.)

求取倒频谱系数，可对声音信号进行分析，是一种特征提取方式(Obtaining cepstral coefficients, can the sound signal analysis, feature extraction is a way)

非常好的例子程序，调试通过的。建议初学者下来绝对有用的。(Very good example of the procedures adopted by the debugger. Recommendations from absolute beginners useful.)

计算一维光子晶体透射率的程序, 可以手动输入任意序列, 程序只针对两种介质组成的序列.(One-dimensional photonic crystal transmission process, you can manually enter any sequence, the program only for sequences composed of two media.)

Phantom Sensable haptic