based on theoretical analysis and numerical calculation, it is shown that the wrapped phase curve and phase wrapped number in frequency domain are influenced by frequency resolution.
基于理论分析及数值计算,研究了频率分辨率、反射波等对谱分析影响,结果表明:频率分辨率会影响相位差曲线及相位差折迭数量;
by using the wavelet transform profilometry, the wrapped phase distribution corresponding to the two frequencies respectively in one bi-frequency grating pattern is got.
提出的双频光栅小波变换查表相位解包法很好地解决了傅里叶变换轮廓术,以及连续相位解包法在非连续物体三维面形测量中所存在的问题。
the main purpose of this article is to improvement of isochromatics wrapped phase map can make the phase to unwrap successfully and get the physical quantity we want to know, relative retardation.
本文的主要目的是修正光弹等色线包裹相位图,使相位展开技术能顺完成,进而得到我们须要得知的物理量-相对延迟。
the method for calculation of wrapped phase values and surface reconstructing was theoretically analyzed, with analogue results given.
对算法过程中涉及的被测波面相位主值计算及表面面形重构等方面作了理论分析,给出了模拟结果。