Trigonometric-function

读入一段数据后，计算有效信号的初至、持时及能量等属性，并作出事件属性判断。(Data into a period of time after the initial calculation of the effective signal to hold the time and energy, such as attributes, and attribute the incident to determine.)

lDPC校验矩阵的环检测。包括4环检测算法，6环检测算法及8环检测算法。还包括一个准循环LDPC奇偶校验矩阵的生成算法。(this algrithm can search cycles in LDPC parity check matrix。It contain cycle-4 cycle-6 cycle-8 test algrithm.It also contains a algrithm for generate the LDPC quasi-cyclic parity check matrix )

说明：  基于灰色预测，指数平滑预测的几个MATLAB程序，对于预测类问题的数学建模，可以说是必备程序。我的导师给我传的。 funesm1,2,3分别为一二三次指数平滑预测程序 fungry为灰色预测程序 funcoef为时间序列预测程序 pudn为广大的编程爱好者提供了一个交流的平台，我在此先谢谢网站的工作人员，我也会努力编出好的程序，一起同大家分享。(Based on Gray predicted that the number of exponential smoothing forecasts MATLAB procedures, issues for the prediction of the mathematical modeling, can be said to be an essential procedure. My mentor gave me spread. funesm1, 2,3 were 123 times procedures fungry exponential smoothing forecast procedures funcoef gray prediction for time series forecasting procedures for pudn programming for the majority of fans provided a platform for exchange, I would like to thank the site staff, I will strive for a good program, to share together.)

this code is used to show the result of power flow solution of a power system

matlab simulationfive least source

电力系统的潮流计算 其中的方法是牛顿拉夫逊算法(Power flow calculation method which is the Newton Raphson algorithm )

different methods of background subtraction

说明：  对于给定的信号数据，用emd进行信号分解得到固有模态函数imf(implement emd to obtain imfs)

matlab主要的函数与命令，适合菜鸟学习。电子书格式是pdf格式(matlab main functions and command)

DFIG wind system with pitch angle controland reactive power control