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- Title
A Phase Correction Model for Fourier Transform Spectroscopy.
- Authors
Cheng, Huishi; Shen, Honghai; Meng, Lingtong; Ben, Chenzhao; Jia, Ping
- Abstract
In Fourier transform spectroscopy (FTS), the conventional Mertz method is commonly used to correct phase errors of recovered spectra, but it performs poorly in correcting nonlinear phase errors. This paper proposes a phase correlation method–all-pass filter (PCM-APF) model to correct phase errors. In this model, the proposed improved phase correlation method can correct linear phase errors, and all-pass filters are applied to correct the residual nonlinear phase errors. The optimization algorithm for the digital all-pass filters employs an improved algorithm which combines the subtraction-average-based optimizer (SABO) and the golden sine algorithm (Gold-SA). The proposed PCM-APF model demonstrates high correction precision, and the optimization algorithm for the filters converges faster than traditional intelligent optimization algorithms.
- Subjects
FOURIER transform spectroscopy; OPTIMIZATION algorithms; METAHEURISTIC algorithms
- Publication
Applied Sciences (2076-3417), 2024, Vol 14, Issue 5, p1838
- ISSN
2076-3417
- Publication type
Article
- DOI
10.3390/app14051838