Focusing on an error appeared in big number error computation on computor, this paper gives the necessity and method for data per-processing based on the Theorem of Variance.
本文针对计算器在大数误差计算中出现的一个错误，根据方差定理，提出数据予处理的必要与方法。
The principle of the detection of the focusing error signal in a holographic optic head is dis - cussed.
讨论了全息光学头聚焦误差信号检测的基本原理。
The spatially correlated noise incurs an increase in focusing error and a severe degradation in the DOA estimation.
空间相关噪声会导致增加对焦错误和严重退化的DOA估计。
The spatially correlated noise incurs an increase in focusing error and a severe degradation in the DOA estimation.
空间相关噪声会导致增加对焦错误和严重退化的DOA估计。
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