Biocomputing Unit, Centro Nacional de Biotecnología-CSIC, Cantoblanco (Madrid), Spain.
Opt Lett. 2012 Feb 1;37(3):443-5. doi: 10.1364/OL.37.000443.
This Letter presents an efficient, fast, and straightforward two-step demodulating method based on a Gram-Schmidt (GS) orthonormalization approach. The phase-shift value has not to be known and can take any value inside the range (0,2π), excluding the singular case, where it corresponds to π. The proposed method is based on determining an orthonormalized interferogram basis from the two supplied interferograms using the GS method. We have applied the proposed method to simulated and experimental interferograms, obtaining satisfactory results. A complete MATLAB software package is provided at http://goo.gl/IZKF3.
这封信提出了一种高效、快速且直接的两步解调方法，基于 Gram-Schmidt（GS）正交归一化方法。相移值不必已知，可以在范围（0,2π）内取任何值，除了奇异情况，此时它对应于π。所提出的方法基于使用 GS 方法从两个提供的干涉图中确定正交化干涉图基础。我们已经将所提出的方法应用于模拟和实验干涉图，得到了令人满意的结果。完整的 MATLAB 软件包可在 http://goo.gl/IZKF3 获得。
