利用激光多普勒效应实现固体面内位移测量时，由于散射光的多普勒信号十分微弱，有时还出现淹没或不连续，影响位移测量精度。

In the displacement measurement system of scattering surface laser Doppler effect, the measuring accuracy is affected by the weakly Doppler signal that may be lost or discontinuous.

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所提方法扩大了可测深度范围，可用于测量面形较陡的连续表面或不连续深结构表面。

Advantage of the approach is that the depth measurement range is expanded very much, it can be used to measure the profile of the deep or discontinuous surface.

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提出了处理不连续点的办法，给出了两个计算实例，计算结果与实验测量结果十分一致。

An approach to remove the singularity is presented. At last, two numerical computation examples are illustrated to show good agreement between computed end treasured results.

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