Assignment3a

ROC curves illustrate performance on a binary classification problem where classification is based on simply thresholding a set of scores at varying levels. Lenient thresholds give high sensitivity but low specificity, strict thresholds give high specificity but low sensitivity the ROC curve plots this trade-off over a range of thresholds (usually with sens vs 1-spec, but I prefer sens vs spec this code gives you the option). It is theoretically possible to operate anywhere on the convex hull of an ROC curve, so this is plotted too. The area under the curve (AUC) for a ROC plot is a measure of overall accuracy, and the area under the ROCCH is a kind of upper bound on what might be achievable with a weighted combination of differently thresholded results from the given classifier

数学仿真工具构建通信仿真系统，利用信号处理工具箱(Mathematical simulation tools to build communication simulation system, using the signal processing toolbox)

说明：  对数字图象进行分步处理,第一步滤波, 第二步去噪,第三步显示(of digital image processing steps, the first step filtering, denoising second step, the third step display)

四阶龙格 的matlab程序 matlab(Runge matlab program matlab)

CDMA rf RF Engineering Continuing Education & Training

使用遺傳演算法來解決一個多項是問題 然是使用單點突變以及單點交配 使用二進位編碼以及精英輪盤法(The use of genetic algorithms to solve the problem then is a number of single point mutations and single point crossover using binary coding and the elite roulette method)

说明：  几种传统的图像插值放大方法：最近邻插值法，双线性插值法，双三次插值法(Several traditional interpolation to enlarge the image : nearest neighbor interpolation, bilinear interpolation, bicubic interpolation.)

说明：  用matlab仿真的信号的fft变换的时域,频域图形(simulation using Matlab Signal fft transform in time domain, frequency domain graph)

System identification with adaptive filter usinglms

tvnoise---a linear image denoising procedures denoising good results, a simple coding procedures