fft

利用matlab制作红色小球沿一条封闭螺线运动的实时动画，对制作动画很有启发性(Matlab produced using the red ball along a closed spiral movement in real-time animation, the animation was very instructive)

Harris角点检测，附有图片，对进行电子稳像技术研究可以提供一定的帮助。(Harris corner detection, with a picture of the electronic image stabilization technology can provide some help.)

Some thing about the communication

利用自相关函数估计基音周期，函数jiyinzhouqi，输入参数是分析语音文件名和帧移，帧移在5~10ms(function jiyinzhouqi is used for estimate the period of fundamental tone.)

程序比较长所以为了清楚就写在一个word里，主要就是对抛物面天线特性的仿真。。。(Program so long to write in order to understand a word, the main parabolic antenna is on the characteristics of the simulation. . .)

主要介绍了正交振幅调制的相关知识，包括如何识别(Mainly introduced the quadrature amplitude modulation related knowledge, including how to identify)

基于arma模型分析方法的具体实现代码， 可以用，放心下载(Arma model-based analysis code, you can rest assured download)

延时矢量方差(DVV)方法使用的可预测性的信号在相空间来描述时间序列。DVV方法已经成功地应用于分析生物信号的性质(EEG和fMRI)。(The Delay vector variance (DVV) method uses predictability of the signal in phase space to characterize the time series.The DVV method has been successfully applied to analyse the nature of biometric signals (EEG and fMRI).)

A hardware-in-the-loop simulation of a wind energy conversion system is used to assess a MPPT strategy for different velocities. The actual system is composed of the blade, a mechanical power train, a squirrel cage induction generator and power electronics. The experimental set-up consists of a DC drive connected to the induction generator. The DC machine is controlled to impose the same behavior as the wind turbine to the induction generator. Fluctuations of wind velocity and non-linear characteristics of the turbine are taken into account. All numerous model and controls blocks are organized according to Energetic Macroscopic Representation for real-time implementation. A very simple MPPT strategy without wind velocity measurement is achieved using a look-up table. This strategy includes a rotation speed limitation. Experimental results are provided for weak and medium wind profiles.

长周期光纤光栅透射谱,用来描述长周期光纤光栅传输特性 (jilianjuyunLPG )