regeneratemode

摘 要:以大学物理实验中的.混沌实验为例,提出了运用建立.混沌实 验可视化模型的方法,并对混沌系统的几种状态进行仿真研究"(Abstract: University physics experiments. Chaotic experiment as an example, the proposed use of the establishment. Chaos experimental model visualization, and several states of chaotic systems simulation study )

哈工大ppt课件，简单易懂，有应用实例，入门必备。(HIT ppt courseware, simple to understand, there are examples, entry necessary.)

产生右图所示图像f1(m,n)，其中图像大小为256×256，中间亮条为128 ×32，暗处=0，亮处=100。对其进行FFT： ① 同屏显示原图f1(m,n)和FFT(f1)的幅度谱图； ② 若令f2(m,n)=（-1）m+n f1(m,n)，重复以上过程，比较二者幅度 谱的异同，简述理由； ③ 若将f2(m,n)顺时针旋转90 度得到f3(m,n)，试显示FFT(f3)的幅 度谱，并与FFT(f2)的幅度谱进行比较； ④ 若将f1(m,n) 顺时针旋转90 度得到f4(m,n)，令f5(m,n)=f1(m,n)+f4(m,n)，试显 示FFT(f5)的幅度谱，并指出其与FFT(f1)和FFT(f4)的关系； ⑤ 若令f6(m,n)=f2(m,n)+f3(m,n)，试显示FFT(f6)的幅度谱，并指出其与FFT(f2)和 FFT(f3)的关系，比较FFT(f6)和FFT(f5)的幅度谱。(Generating an image f1 (m, n) shown in the figure, wherein the image size is 256 256, the intermediate light bar 128 32 0 = dark, bright Department 100. Its FFT: ① screen display picture f1 (m, n) and the FFT (f1) of the amplitude spectrum ② If so f2 (m, n) = (-1) m+n f1 (m, n), repeat The above process, comparing the amplitude spectrum of the similarities and differences between the two, brief reasons ③ If f2 (m, n) 90 degrees clockwise to get f3 (m, n), try to display FFT (f3) the amplitude spectrum and with the FFT (f2) comparing the amplitude spectrum ④ If f1 (m, n) obtained by 90 degrees clockwise f4 (m, n), so f5 (m, n) = f1 (m, n)+f4 (m, n ), try to display FFT (f5) amplitude spectrum, and pointed out its relationship with the FFT (f1) and FFT (f4) of ⑤ If so f6 (m, n) = f2 (m, n)+f3 (m, n) and try to display the FFT (f6) amplitude spectrum, and pointed out its relationship with the FFT (f2) and FFT (f3), comparing FFT (f6) and FFT (f5) amplitude spectrum.)

说明：  Neural Net that recognizes drawn numbers

Removing all variables, functions, and MEX-files from memory, leaving the workspace empty. clear all Deleting all figures whose handles are not hidden. close all Deleting all figures including those with hidden handles. close all hidden Clearing all input and output from the Command Window display giving us a clean screen. clc

完整的OFDM仿真程序，在matlab上运行。有详细的解释。(Complete OFDM simulation program, run in matlab. A detailed explanation.)

voice recognition project on home application

mathematica5简明教程 关于mathematica的教程，值得看一看咯！！！(mathematica5 concise tutorial mathematica about the tutorial, it is worth a look pyronaridine! ! !)

说明：  PCA-SIFT算法的实现，PCA-SIFT是对SIFT算法的改进，用PCA替代SIFT算法中的第四步，提高了效率，且准确率更高(PCA-SIFT algorithm implementation, PCA-SIFT SIFT algorithm is an improved SIFT algorithm with PCA instead of the fourth step, improve efficiency, and higher accuracy)

求Weighted/Non-weighted贝叶斯k近邻模型的matlab程序，内含具体说明。(seeking Weighted/Non-weighted k neighbors Bayesian model matla b procedures, containing details.)