power_transformer

有关于压缩子空间跟踪（PASTD）的MATLAB源代码(On the compressed subspace tracking (PASTD) of the MATLAB source code)

fft示範,取前10 waves,X-Hz,Y-phase angle(fft demonstrations, for the first 10 waves, X-Hz, Y-phase angle)

语音分析程序，包括语音分帧、短时能量计算等，对初学者很有帮助。(procedure for speech analysis,contains frame and energy caculate, it is usful.)

北京航空航天大学出版的matlab从零进阶的原程序代码第1章案例21.1源代码(Beijing University of Aeronautics and Astronautics published matlab from the original program code zero Advanced Case 21.1)

说明：  萤火虫算法的matlab示例代码，只适用于求极大值(极小值可转化为求极大值)(Firefly algorithm matlab sample code, only applicable to the maximum (minimum can be converted to the maximum))

后向欧拉方法求解微分方程的初值问题，运用牛顿迭代解决implicit(backward euler solver for ODE)

国外大牛Mean Shift代码，思路比较清晰(the code of Mean Shift from Foreign Daniel and Ideas is clear)

This paper deals with analysis of main functional diagrams of step PID controllers for electric motor-driven actuators. The main formulae to calculate the parameters of the diagrams of step PID controllers are presented in the paper. The influence of these parameters on the transient processes in step controllers and on the output position of the actuator is analyzed. Transient processes in step controllers with motor-driven actuators are simulated in PI and PID control mode. These transient processes are compared to the transient processes in continuous controllers. The accuracy of step PID controllers is analyzed, and restrictions on the parameters of step PID controllers are presented. The diagrams of step PID controllers considered in this paper can be implemented in the up-to-date PLCs software for automatic control using the electric motor-driven actuators in the control loops.

使用matlab变成，基于FFT算法的电网中介谐波参数估计的程序(Matlab into use, the power grid based on the FFT algorithm intermediary harmonic parameter estimation procedure)

机械出版社出版的《数值分析与应用》的源程序，有最优化和数值分析算法的各种程序，对于搞研究有用(Machine Press book "Numerical Analysis and Applications" to the source, there are optimization and numerical analysis algorithms of the various procedures for the study useful to engage in)