By using backward difference of space-time intensity correlation function with respect to time delay, the two-dimensional velocity vector of a moving diffuser can be measured.
利用远场时变散斑空-时强度相关函致的有限差商可以测量散射体运动的二维速度矢量。
The methods of Time-Domain Analysis consist of eye diagram, vector diagram, constellation diagram, correlation, synchronization, etc.
数字信号的时域分析有眼图、矢量图、星座图、相关性、同步等途径。
Through calculation of the correlation, it is successful to extract the watermark algorithm blind when there are not original vector images.
在提取水印时，通过计算相关度，从而实现了不使用原载体图像就能提取水印的盲算法。
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