通过对话框输入信号频率，采样点等信息，实现对信号的一维fft变换-Through the dialog box input signal frequency, sampling points, such as information, the realization of signal transform one-dimensional fft

串口 读取 单片机 AD 采样电压 -Serial read microcontroller AD sampling voltage

程序运行时，可以用鼠标拖动滑块，程序等时间间隔采样并将采样值写至指定文本文件。 程序核心为滑块控件的运用。-When the program is running, you can use the mouse to drag the slider, procedure time interval sampling and sampling value to write to the specified text file.Procedures for the use of the core

dct域内视频的上采样了,Dct the upper sampling of the video(On the DCT domain of the video sampling, DCT, the upper from of the video)