xianxingshenjingwangluo1

Report Studi communication data

说明：  两个改进的EM算法，虽然比Matlab自带的运行速度慢，但更易理解算法的原理(Two improved EM algorithm, although more than Matlab s own slow, but easier to understand the principles of algorithm)

SEP [Matlab code source]: A Stable Election Protocol for clustered heterogeneous wireless sensor networks

无功补偿，SVG代表了无功补偿的新方向，可以提高功率因素，克服三相不平衡，消除电压善变和电压波动(Reactive power compensation, SVG represents a new direction of reactive power compensation, can improve power factor, overcome three-phase imbalance, eliminate voltage fickle and voltage fluctuation)

runge kutta order 12

说明：  用matlab程序仿真QPSK系统中调制、解调，懂得QPSK通信系统的真正内涵(QPSK simulation with matlab program system modulation, demodulation, QPSK communication system to understand the real meaning of)

Algorithm Given are P training pairs {X1,d1,X2,d2....Xp,dp}, where Xi is (n*1) di is (n*1) No of Categories=R. i=1,2,...P Yi= Augmented input pattern( obtained by appending 1 to the input vector) i=1,2,…P In the following, k denotes the training step and p denotes the step counter within the training cycle Step 1: c>0 , Emin is chosen, Step 2: Weights are initialized at w at small values, w is (n+1)*1. Counters and error are initialized. k=1,p=1,E=0 Step 3: The training cycle begins here. Input is presented and output computed: Y=Yp, d=dp Oi=f(wtY) for i=1,2,….R Step 4: Weights are updated: wi=wi+1/2c(di-oi)Y for i=1,2,…..R. Step 5: Cycle error is computed: E=1/2(di-oi)2+E for i=1,2,…..R. Step 6: If p<P then p=p+1,k=k+1, and go to Step 3: Otherwise go to Step 7. Step 7: The training cycle is completed. For E=0,terminate the training session. Outputs weights and k. If E>0,then E=0 ,p=1, and enter the new training cycle by going to step 3.

Filtre de Kalman, sous le logiciel matlab, pour de terminer l evolution d une trajectoire

人脸定位代码，短小但精度和速度都很高，matlab版本不能太低(Face location code, a short but very high accuracy and speed,)

偏微分方程数值解的matlab程序，具有较好的实用性，方便大家使用和参考。(Numerical solution of partial differential equations matlab program, with good usability, to facilitate the use and reference.)