wenzheng_about_cs

说明：  MATLAB辅助变量法算实例，算法简单，计算量少(Operator-assisted MATLAB instance variables, the algorithm is simple, computing less)

-给原始的语音信号加上一个高频余弦噪声，频率为5kHz。画出加噪后的语音信号时域和频谱图--(- To the original speech signal with a high-frequency cosine noise, frequency of 5kHz. Draw the speech signal with noise after the time-domain and frequency spectrum-)

matlab实现，绘制二维及三维HHT谱图(Matlab implementation, draw 2D and 3D HHT spectrum)

OFDM，MPSK，MDPSK,QAM四种调制方式误比特率的matlab仿真代码。(Matlab simulation code of OFDM, MPSK, MDPSK, QAM modulation bit error rate)

可以画出双曲线的图形,比较好用,同时也可为大家编写画其他函数曲线提供借鉴.(Hyperbola can be drawn in the graphics, more convenient, but also for the preparation of U.S. painting other function curve for reference.)

建立了Buck-Boost降压-升压斩波电路仿真的模型。(Buck-Boost buck- boost chopper circuit simulation model.)

此程序为高斯白噪声AWGN信道的matlab描述(This program is Gaussian white noise AWGN channel matlab description)

数据挖掘算法中的CART算法，matlab版本(CART matlab)

计算冲击电压波下的Q-V图,雷电波或操作冲击波均可(simulation of q-v curv under thounder)

估计Hurst指数的matlab代码，可以分析股票市场上的特点。(estimate hurst exponent)