guihua

ANN Backpropagation Error

说明：  建立GEO和LEO的轨道，并计算他们间方位角和俯仰角速度及加速度，多普勒频移等重要参数。(established GEO and LEO orbits, and calculate their azimuth and pitch between angular velocity and acceleration, Doppler frequency shift and other important parameters.)

实现滑动去趋势波动分析，程序内部有解释，在MDFA文件中可以改变相应的参数值，使结果更好。x中存放的是脑电信号，这里没有上传。可以根据需要，用这种方法处理不同数据。(Achieve sliding detrended fluctuation analysis, is explained within the program, the file can be changed in the MDFA the corresponding parameter values ​ ​ so that the results better. x is stored in the brain signal, there is no upload. As needed, using this method to deal with different data.)

说明：  一种很实用的风力机低电压穿越相关模型搭建及分析。(wind power model)

永磁同步电机矢量控制系统的matlab/simulink仿真模型，是一个同学做的(PMSM SVPWM control)

双向PCS控制仿真，DC-DC部分采用定功率单环控制，DC-AC采用Udc-Q解耦控制，系统直流电压由后级DC-AC实现稳定控制(bi-direction PCS control simulation, DC-DC part using single-loop control, DC-AC part using Udc-Q decoupling control. )

是用matlab对信道估计得到的估计信道与真实信道的最小均方误差的仿真实现程序(Is used for channel estimation matlab been estimated channel true channel with minimum mean square error of the simulation procedure)

LDPC encoding and decoding for Gallager algorithm

QPSK误码率仿真程序，给出了比较可行，准确的方法(QPSK BER simulation program are given more feasible and accurate method)

说明：  这是一个创建BP神经网络的matlab源代码，包括BP神经网络的创建、曲线拟合等内容。对初学者很有帮助(This is a create BP neural network matlab source code, including the creation of BP neural network, curve fitting and so on. Very helpful for beginners)