datamining

jpeg compression and expansion :P

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.

该程序包括注水功率分配算法，平均功率分配算法的仿真。生成的ser_snr曲线能很好的体现不同算法的效果。(The program includes injection power allocation algorithm, and the average power allocation algorithm simulation. The generated ser_snr curve can well reflect the effect of different algorithms.)

ace Detection Program for MATLAB 2013a using Gabor Feature Extraction and Neural Networks ---------------------------------------------------------------- 1- copy all files and directories to the MATLAB s work folder * In order to run the program you must have Image Processing and Neural Networks Toolboxes 2- (Important) Navigate to the root folder which contains "main.m". 3- Type "main" or "run main" in the command window 4. Only fort the first time, the program creates Gabor filters and stores them in ./data/gabor.mat Training set dataset and stores it in ./data/imgdb.mat Neural Network and stores it in ./data/net.mat 5- imgdb is short for "image data base". 6- When the program menu appears click on "Train Network" and wait until the program is done with the training

简单迭代傅里叶变换算法的代码，主要用了快速傅里叶变换函数 (IFTA)(Iterative Fourier Transform Algothrim (IFTA))

数据仿真，简单的回波信号时域滤波，动目标显示(echo simualtions, time filtering, GMTI)

这是基于IHMPT（积分高阶匹配相位变换）方法的多分量三阶相位多项式信号（即立方相位信号）参数估计算法程序包，包含了相关的6个子函数、测试程序以及参考文献等。可以实现对各分量的幅度、各阶相位系数的精确估计。具有广泛的应用，如雷达成像中回波信号具有多阶相位多项式的形式。(This is a matlab code package for an algorithm of estimating parameters of Multicomponent 3-order Polynomial phase signal (Cubic-PPS). The algorithm is based on IHMPT(Integrated High-order Matched Phase Transform). The code package include relevant functions,test codes and reference paper. An accurate estimation of the amplitude and phase coefficients of each order can be obtained by this package. It has a wide application,e.g., the echo signal of radar has the form of PPS. )

two path fading(qpsk) 这个是我写的关于qpsk的two path fading,站长帮帮忙,我现在很需要一篇<信道估计算法>(基于瑞利衰落信道的LS算法的Matlab程序),后天就要交了,救人一命胜造7级浮屠啊!(two path fading (qpsk) This is what I wrote on the two p qpsk ath fading, the station help out, I am now a need)

智力游戏_十全十美_解法matlab源代码！需要的下！(intellectual game _ _ perfect solution Matlab source code! The next need!)

Matlab program for optimal dispatch of power