It overcame the shortcoming of the hardthreshold function's discontinuousness and improves the constant error.

该阈值函既克服了硬阈值函不连续的缺点,又修正了软阈值函的恒定偏差。

Geological radar is a non-destructive test instrument that detect the underground objects by the quality of discontinuousness of the underground medium.

质达是一种通过利介质的不连续性来探测目标的无损检测工具。