sub

产生多径衰落信道，有6个可分辨径，每径中有25个径形成瑞利信道。(Generate multi-path fading channel, there are six tracks can be distinguished, each track has 25 tracks form a Rayleigh channel.)

matlab数字水印程序m文件程序，用的是小波变换中的dwt方法，并且把小波变换分成了四个子带，选择的LL子带。svd算法与dwt相结合，加密方法是混沌加密。与我刚才上传的dwt_svd_GUI.rar是一个程序，一个是gui的，一个是m文件。(m digital watermarking matlab program documentation procedures, using a wavelet transform method in the dwt and the wavelet transform is divided into four sub-band, choose the LL sub-band. svd algorithm with a combination of dwt, encryption method is chaotic encryption. I have just uploaded a dwt_svd_GUI.rar procedures, one is the gui, one m file.)

New for AlGaAs/GaAs quantum well

matlab gui tutorial, a brief introduction for matlab and include an example of image processing

F-P腔功率谱，用来仿真法布里珀罗腔的功率谱图，可以改反射率(FP cavity power spectrum, to simulate the power spectrum Fabry-Perot cavity, the reflectivity can be changed)

说明：  OFDM的信道估计，LS,MMSE,非常全的仿真程序(OFDM channel estimation, LS, MMSE, very complete simulation program)

传输矩阵法计算啁啾光栅反射谱 本节中给出传输矩阵法计算啁啾光栅反射谱和 时延的完整M at lab 程序实例, 本段代码在 M at lab513 和W indow s2000 环境中运行通过。运行结果如图8 所示。可以改变光栅长度、有效折射率、折射率调制深度、啁啾系数等参数来获得不同参数下光栅反射谱和时延曲线。如果打开“％ 切趾”行的屏蔽符“％ ”则可得到切趾后光栅反射谱和时延特性曲线, 此时计算所得的曲线将比图8 中所示的曲线平滑很多。(Transfer matrix method to calculate reflection spectrum of chirped grating is given in this section transfer matrix method to calculate chirped grating reflection spectrum and the delay of a complete example of M at lab procedures, the above code in M at lab513 and W indow s2000 environment to run through. The results shown in Figure 8. Can change the grating length, the effective refractive index, refractive index modulation depth and chirp coefficient parameters to obtain different parameters of grating reflection spectrum and the time delay curve. If you open Apodization line shielding Fu can be grating after apodization reflection spectrum and the delay characteristic curve, the curve at this time will be calculated as shown in Figure 8 a lot of curve smoothing.)

蚁群算法解决TSP问题 matlab程序(Ant colony algorithm to solve TSP problem matlab program)

This file is for LDA

本程序演示的是用遗传算法随机一个种群，然后根据所给的交叉率，变异率，世代数计算最大适应度所在的代数(This procedure is demonstrated by using genetic algorithms a population of random, and then the basis for cross-rate, mutation rate, calculated from generation to generation, where the largest fitness algebra)