WW09_CJAPS

DTMF(双音多频)是用两个特定的单音频组合信号来代表数字信号的一种编码技术。两个单音的频率不同，代表的数字或实现的功能也不同。可采用8种频率代表电话机上的16个按键，10个数字键0~9和6个功能键*、#、A、B、C、D。具体的频率组合见参考书。要求： (1) 根据键盘输入的符号，利用MATLAB产生对应的DTMF信号；(2) 分别利用FFT算法和Goertzel算法计算该DTMF信号的频谱并画出频谱图；(3) 根据频谱图确定DTMF信号所代表的符号是否和输入的符号一致。 (DTMF (Dual Tone Multi-Frequency) is a single with two specific combination of audio signals to represent a kind of digital signal coding techniques. Two monosyllabic different frequency, on behalf of the numbers, or the realization of the functions are also different. Eight kinds of frequency of use on behalf of telephone on the 16 keys, 10 numeric keys 0 ~ 9 and 6 function keys*,#, A, B, C, D. The frequency of specific composition of reference books. Requirements: (1) According to the keyboard input of symbols, the use of MATLAB have a corresponding DTMF signal (2), respectively, using FFT algorithm and the Goertzel algorithm DTMF signal spectrum and frequency spectrum draw (3) According to DTMF signal frequency spectrum to determine represented by symbols and input symbols unanimously.)

this is code of the ica algorithm

整数小波变换与图像压缩 用MatLAB实现图像的整数小波变换，对行和列各做一次。采用最简单的S小波，它是Haar变换的整数形式。(integral wavelet transform and image compression .To realize the integral wavelet transform based on the Matlab in rows and columns. Using the simple S wavelet ,which is integral form of the Haar transform)

an article about a model of dvr

采用VC2005 与Matcom混合编成 实现数据的读取和数据显示 对于学习VC和matlab的研究人员有一定参考价值(Compiled with VC2005 mixed Matcom using data read and data for the study, researchers VC and matlab has some reference value)

EEGLAB的插件，该插件和EEGLAB结合可以根据独立成分的地形分布特征和时域特征去除相应的伪迹(this plug-in is used to reject artifact of EEG, which is achieved through the topographical feature and temporal feature of independent component)

混沌演示——数据加密的动态过程以及结果展示(Chaos demo- data encryption as well as the results demonstrate the dynamic process)

picture for RGB analysis

用matlab采用双尺度方程求解小波基函数的方法 构造小波基(wavelet_function)

很精准的潮流计算，适合100节点内的的潮流计算(power flow)