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robert operation for sharpening picture

Creates a package named XPLAN as a wrapper over DBMS_XPLAN

说明：  使用memd对农产品价格时间序列进行分解(decompose by memd, choose chicken price, egg price, pork price, beef price as input ,and then imfs as output.)

《MATLAB程序设计教程》电子教案～～～有助于matlab学习(" MATLAB Programming Guide" e-lesson plans ~ ~ ~ help matlab learning)

语音信号的分离。可以将两个同时说话的人的声音分离开来。也可以将人声和音乐的分离开来。(Separating the speech signal. Two simultaneous speaker' s voice can be separated. Also the human voice and music can be separated.)

说明：  谱估计算法MATLAB程序 ARMA.M autocorrelation.m demoautocorrelation.m PERIOD.M SPECTRUM.M(Spectral estimation algorithm MATLAB program ARMA.M autocorrelation.m demoautocorrelation.m PERIOD.M SPECTRUM.M)

Pricing asian options

降维状态观测器是非常重基于T变换的降维观测器设计方法。要的一类观测器(Reduced-order state observer is very important dimension reduction based on T transform observer design method. To a class of observer)

对frame1进行一个简化的帧内编码方案: A)将图像分为8x8的块. B)将图像每一块做DCT2变换. C)将DCT系数采用11.ppt page 35的亮度量化表量化. 量化系数 = 取整 (DCT系数./量化表). D) 统计整个图像中非零量化系统的比重, 该比重可反映什么? E) 将量化系数进行 IDCT2, 绘制出重建图像.(a example for matlab to deal with a picture)

这是清华大学周红星教授关于时频分析的精彩论述！(This is the Tsinghua University, Professor Zhou Hongxing on time-frequency analysis of the wonderful discussion!)