本论文主要讨论了分数傅里叶变换在测量物体微位移方面的应用，提出了一种可同时提取物体的面内位移和倾斜的信息的方法并设计了实验方案和装置。

This article main discuss the measuring the micro-displacement of the object, and we design a new setup to measuring the displacement and the titling factor in one time .

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主要讨论了一种将加紧支撑窗与分数阶傅里叶变换相结合的信号处理方法。

A new method that USES the tight support window signal together with the fractional Fourier transform (FRFT) is discussed.

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