Python_learning

说明：  HHT主要内容包含两部分，第一部分为经验模态分解（Empirical Mode Decomposition，简称EMD），它是由Huang提出的；第二部分为Hilbert谱分析（Hilbert Spectrum Analysis，简称HSA）。简单说来，HHT处理非平稳信号的基本过程是：首先利用EMD方法将给定的信号分解为若干固有模态函数（以Intrinsic Mode Function或IMF表示，也称作本征模态函数），这些IMF是满足一定条件的分量；然后，对每一个IMF进行Hilbert变换，得到相应的Hilbert谱，即将每个IMF表示在联合的时频域中；最后，汇总所有IMF的Hilbert谱就会得到原始信号的Hilbert谱。(The main content of HHT includes two parts. The first part is Empirical Mode Decomposition (EMD), which was proposed by Huang, and the second part is Hilbert Spectrum Analysis (HSA). Simply speaking, the basic process of HHT processing non-stationary signals is: firstly, the given signal is decomposed into several intrinsic mode functions (represented by Intrinsic Mode Function or IMF, also known as intrinsic mode functions), which are components satisfying certain conditions; secondly, Hilbert transform is applied to each IMF. The corresponding Hilbert spectrum is obtained, that is, each IMF is represented in the joint time-frequency domain; finally, the Hilbert spectrum of the original signal is obtained by summing up the Hilbert spectrum of all IMFs.)

说明：  The Effortless English System Overview

说明：  此文件为数学建模比赛常用30个算法的matlab配套实现例程(This file is the matlab implementation routine of 30 algorithms commonly used in mathematical modeling competition)

qt jambi的模拟时钟的例子。展示了qt在java富客户端领域的强大功能，可以和swing兼容或者替代swing。继承了qt c++的良好品质。(qt jambi example analog clock. Qt display java rich client in the field of power swing can be compatible or alternative swing. Inherited qt c++ good quality.)

说明：  used in new product development

说明：  寻找数对，所谓数对，即a+b与a-b都是自然数的平方(find a few right, a few so-called right, and that is a a b-b is the square of the number of natural)

微信跳一跳stm32程序，带键盘，得用尺子量，里面有介绍(Intelligent rc522 water card, with PC end software, MCU used is stm32)

说明：  Svpwm算法Matlab仿真通过function完成算法封装(MATLAB simulation of Svpwm algorithm)

一款3d赛车游戏,界面友好.需要的朋友可以下载.-A 3d racing game and friendly interface. Need a friend can be downloaded.

其内容是关于通信专业的纠错与编码的内容，对各种码型及编解码等相关内容作了一定的介绍-Its content is on professional communication error correction and encoding the contents of various codes, such as codec type and content of certain relevant introduction