admedian

给你一个非常大的整数x，(-10^400 <=x<= 10^400)，请统计x的每一位，分别输出9,1,2出现的次数. Input 一个大整数 Output 一共三行，第一行是9出现的次数，第二行是1出现的次数，第三行是2出现的次数。 Sample Input 912912912910915902 Sample Output 6 5 4(Statistical figures)

数字滤波器设计（冲击响应与双线性Z变换）(Digital Filter Design (impulse response and the bilinear Z transform))

为了满足数字通信及其它商业应用的需求，语音压缩编码技术得到了迅速发展。介绍了目前语音压缩编码技术 的研究进展，主要包括连续可变斜率增量调制(CVSD)、小波分析、多脉冲激励线性预测编码、散布脉冲码激励线性预 测(DP-CELP)、多重脉冲散布非均匀代数码本激励线性预测(MPD-USACELP)、波形内插(Ⅷ)、线谱对(频率)(LSP)的量化(In order to satisfy deman凼of the digital communication and other commercial applicatiOils， the speech compression technology has been developed rapidly．The present research progress in speech compression technology is introduced in this paper including CVSD， wavelet analysis and its application to speech coding，MPLPC，DP-CELP，MPD-USACELP，Ⅷand quantification of LSF．These algorithins)

delta sigma AD转换模型的matlab工具箱，包含调制，滤波，计算信噪比等多多方面内容，非常全面。用之进行相关研究，事半功倍。(delta sigma is the AD conversion models matlab toolbox, including modulation, filtering, calculation of signal to noise ratio, etc. a lot of aspects, very comprehensive. Used more efficiently.)

单目标细菌群体趋药性算法，自己编写，可运行( Specific examples of DBCC algorithm)

CSI对MIMO系统容量影响的仿真与分析(Simulation and Analysis for MIMO system capacity CSI effect)

说明：  matlab程序读取EXCELL格式的数据，感觉好的话，就顶一下，程序可用(matlab program to read Excel data format, I feel good, look on the roof, procedures available)

Edge_preserving_smoothing ofdm

this is the source code for novel watermarking approaches for copyright protection of digital media such as videos and images using sws algorithm.

多视图几何的源代码Multiple_View_Geometry_in_Computer_Vision(Multiple View Geometry in Computer Vision 2nd Edition)