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Set of files about subspace method and pca

Power flow calculation is very important to distribution system management, and more and more attention are paid to calculation speed and accuracy due to the booming smart grids which allow interconnection of distributed generation of different kinds.Because of different characteristic features of distribution networks, such as radial structure and high R/X ratio, distribution system load flow analysis differs significantly from transmission systems.

定义锁相环的工作模式：单载波为“1”、BPSK调制为“2”、QPSK调制为“3”(The definition of phase-locked loop mode of operation: single-carrier for the " 1" , BPSK modulation for the " 2" , QPSK modulation for the " 3" )

It can be used in simulating izhikevich neurons

diagen, modeling diagenesis trend for sediments

基于遗传算法的PID参数优化设计。利用遗传算法的智能搜索功能，获得在线PID参数的整定。(Design of PID Parameters Based on Genetic Algorithms.Genetic algorithm intelligent search function for online PID tuning parameters.)

说明：  基于增广矩阵束的L型阵列的二维DOA估计MATLAB程序，计算空间谱密度与旋转坐标向量，阵列信号处理(Matlab program of 2D DOA estimation of L-type array based on augmented matrix beam, calculation of spatial spectral density and rotation coordinate vector, array signal processing)

说明：  基于卡尔曼滤波的航迹融合算法实现 通过此实例可进一步理解卡尔曼滤波算法(Realization of track fusion algorithm based on Kalman filter)

人脸识别的matlab程序，不过是一个主程序界面，要是用的话还得调用很多的子程序(Face recognition matlab program, but is a main program interface, if used, then have to call a lot of subroutines)

说明：  齿轮轮齿渐开渐开线，螺旋源程序等，希望对大家有用(Involute gear tooth involute, spiral source in the hope that useful)