20111118070112625

this program simulates 2D electromagnetic Maxwell equations in transverse magnetic mode , by using finite difference time domain method FDTD

obtaining the particular position where a maximum or minimum occurs

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.

高维非线性数据维数约减，局部线性嵌入算法(Dimension reduction of the higher dimensional nonlinear data，locally linear embedding. )

matlab程序用来解薛定谔方程，程序源代码说明详细，可直接使用(matlab program for solving schrodinger equation. there are detailed expression for using the code)

说明：  Simple generic algoritm using MATLAB

说明：  用遗传算法解决旅行商问题，包括交叉，选择，变异和适应度函数计算等函数(in order to solve the problem of TSP, a GA algorithm is proposed, which including the cross, select, mutation.)

implementation of rayleigh fading channel

仿真不同占空比，等概、非等概双极性矩形随机信号的归一化功率谱密度(Simulation different duty cycles, such as probability, non-equiprobable random signal bipolar rectangular normalized power spectral density)

LPC voice compression and decompression example