ESP8266整理

网站形式的客户系统,可直接提出问题,也可以查看各种问题的答案.-Site forms of client systems can be directly put questions to, can view a variety of answers to these questions.

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.)

VC++6.0实现的游戏俄罗斯方块,速度一般.-VC++ 6.0 realize the game Tetris, speed in general.

说明：  matlab代码CDMA多址接入多用户通信系统仿真程序(CDMA multiuser emulator)

击图片旋转效果，图片叠加轮播效果，图片叠加轮播旋转切换代码。(Click on the image rotation effect, the image superimposed rotation effect, the image superimposed rotation switching code.)

说明：  LZW encoder and decoder

平台基于visual studio2015，使用opencv函数实现方框滤波，进行图像处理(box filter based on opencv)

易买网项目源码：内有购物车功能，登录，注册，订单管理，商品管理等功能(Easy to buy network project source code: there are shopping cart function, login, registration, order management, merchandise management functions)

电力系统潮流计算体现在数学就上是多元非线性方程组的求解问题，求解的方法有很多种。牛顿—拉夫逊法是数学上解非线性方程式的有效方法，收敛性好、迭代次数少。将牛顿—拉夫逊法用于潮流计算是以导纳矩阵为基础的，由于利用了导纳矩阵的对称性、稀疏性及节点编号顺序优化等技巧，使牛顿—拉夫逊法解题规模和计算速度进一步提高，此算法至今仍是潮流计算中广泛采用的优秀算法。(Power flow calculation in power system is a problem of solving multivariate non-linear equations in mathematics. There are many methods to solve it. Newton-Raphson method is an effective method for solving nonlinear equations in mathematics. It has good convergence and fewer iterations. The application of Newton-Raphson method to power flow calculation is based on admittance matrix. Because of the use of symmetry, sparsity and optimization of node number sequence of admittance matrix, the scale and speed of Newton-Raphson method are further improved. So far, this algorithm is still an excellent one widely used in power flow calculation.)

说明：  实现DS18B20实验测试和先面试基本部分和一个发挥，希望对大家有所帮助(Realize the Basic Parts and a Play of the 07 National Games)