chap_4

digital image processing - filters

说明：  这是一个求杜芬方程解的小程序。开发环境为matlab。通过仿真曲线可以很容易的看到解的曲线。(Duffing equation for the small program. Development environment for Matlab. Through simulation curve can be very easy to see the solution curve.)

说明：  2维的FDTD_MUR程序，可以用于点源程序的检验(Two-dimensional FDTD_MUR procedure can be used to test the source points)

To file convertion from ETNA EVT file into MatLab or ASCII

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.

将图片重建为三维raw数据，得到nfo文件(reconstruct the picture into 3d raw data and obtain nfo file)

MIMO系统，空时编码2x2误码率性能仿真(computing the BER for BPSK modulation in a Two transmit antenna, Two Receive antenna)

OFDM系统的MTLAB程序仿真，对于刚入门学OFDM的新手来说很有帮助(OFDM system MTLAB process simulation, for the novice just started learning it was helpful for OFDM)

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RBD and LCRBD algorithm for capacity and ber