get_hist_google_stock_data

关于ds_cdma系统的仿真，包括成型滤波，扩频编解码，调制解调等的子程序(About ds_cdma system simulation, including the shaping filter, spread spectrum encoding and decoding, modulation and demodulation, etc. subroutine)

对音频信号分帧加窗,对每帧进行三阶小波变换,取其逼近系数平均值(一般为零).在此嵌入二值图像 并有对潜入水印信号进行盲检,恢复其嵌入水印(Sub-frame of the audio signal increases the Hamming window for each frame impletment third-order wavelet transform, whichever is close to the average coefficient (usually zero). according to this embedding binary image and resume its embedded watermark from the watermark signal by the Blind detection)

一些通信仿真实例,是我自己一直在用的东西，查了好久的，希望有用(Some test,helpful)

this is simulink model of three phase inverter.. and the simulation results we can verify

说明：  用MATLAB 仿真了风力机模型 The wind turbine model is simulated with MATLAB(The wind turbine model is simulated with MATLAB)

说明：  在matlab环境中采用Bior小波对信号进行压缩降噪并对比(Matlab environment in the signal using wavelet compression Bior noise reduction and contrast)

薛定宇书籍中定义的函数，随书附赠光盘中有。(The Xue Dingyu books defined functions，With the book comes with CD-ROM.)

ldpc decoding and encoding

AFD - Advanced Filter Design using MATLABMiroslav D. Lutovac, Dejan V. Tosicversion 1.00 released 15 October 1999This program is freeware.Unpack with path names, for exampleDOS: pkunzip -d afdunix: unzip -L afdAfter unpacking afd.zip, and run MATLAB,change directory to afdfrom the MATLAB command window.Execute demoafd to quickly scan the AFD operation.(AFD- Advanced Filter Design using MATLABMiroslav D. Lutovac, Dejan V. Tosicversion 1.00 released 15 October 1999This program is freeware.Unpack with path names, for exampleDOS: pkunzip-d afdunix: unzip-L afdAfter unpacking afd.zip, and run MATLAB,change directory to afdfrom the MATLAB command window.Execute demoafd to quickly scan the AFD operation.)

模型算法控制(DMC)是非常有效的控制算法，他采用单位节约相应序列作为模型，并使用增量式控制，可以消除控制系统的稳态误差，应用非常广泛。(Model algorithmic control (DMC) is a very effective control method, he used the units to save the corresponding sequence as a model, and use the incremental control, can eliminate the steady-state error control system, is widely used.)