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

该阈值函数既克服了硬阈值函数不连续的缺点,又修正了软阈值函数存在的恒定偏差。

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

地质达是一种通过利用地下介质的不连续性来探测地下目标的无损检测工具。