Frequency-modulated continuous-wave laser interferometry measurement method based on cross-correlation
Dengpan Zhang,
Mengchao Yan,
Gaochao Li
et al.
Abstract:Frequency-modulated continuous-wave (FMCW) laser interferometry technology holds significant potential for applications in the fields of ultraprecision manufacturing and high-precision sensing. This paper proposes a novel approach among current phase demodulation methods is based on cross-correlation to address the challenge of this technology. On the basis of nonlinear correction of a distributed feedback (DFB) laser, the intercepted beat frequency signal was first preprocessed with Z-score signal normalizati… Show more
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