振幅：振动物体离开平衡位置的最大距离。
Amplitude: the biggest distance that object leaves equilibrium position.
据此我们修改了待识别物体的傅里叶变换的振幅，以减小光强度的动态范围。
In the experiment the amplitude of Fourier transform of object is modified to reduce the intensity dynamic range, while phase information is preserved.
利用有关的物理模型，便可导出求解被测物体上任一点的振幅的三个分量的线性方程组。
Utilizing the related physical model, the linear system of equations solved for the three components of the amplitude of the arbitrary point on the test object may be derived.
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