全面的尺度不变特征变换(SIFT)算法程序

this file perform convolutionalencoding

用于故障诊断中计算时频域中的小波包能量矩。。(Wavelet packet energy moment)

说明：  使用matlab搭建了一个直流稳压电源的模型，两级式，前级不控整流，后级升降压(A model of DC regulated power supply is built by using matlab. It is two-stage, with uncontrolled rectifier at the front stage and step-up and step-down at the back stage.)

MATLAB时频分析工具箱，很简单实用，能够满足基本时频分析使用(MATLAB toolbox for Time-Frequency Analysis )

This function resamples the images at the new grid points defined by the new pixel sizes. It assumes that intensities are defined at the pixel centers

该系统使用极其简便，即使 你对各种网络模型不是很深刻的了解，也可以很好的使用该系统。使用时， 你可以自己修改网络的各种参数，交互性较好，而且该系统通过大量的图示 及参数设置，可以让你了解每个应用实例实现的过程及详细步骤。(The system is extremely easy to use, even if you have to various network model is not very profound understanding can be a good use of the system. When used, you can change the network's own parameters, interactive better, but the system through a lot of icon and parameter settings, so you can understand each application process and the realization of detailed steps.)

资源描述本程序在稀疏理论中应用匹配追踪算法来实现信号的重构

多载波天线下的自适应调制，很好的体现了系统的性能，可以做为源文件(Under the adaptive antenna multi-carrier modulation, well reflects the performance of the system can serve as a source file)

说明：  自制的快速傅立叶变换函数，可以用来对比工具自带的fft函数，比较其执行时间随Ｎ值变化的情况(privately fast Fourier transform function can be used to contrast the instruments onboard fft function, compared with the time of its implementation N changes in the value of)

fft is important for identifying the amplitude and frquency.this doc is for fft in matlab.