1 September 2002 Reconstruction technique for stimulated Brillouin scattering distributed fiber-optic sensors
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Optical Engineering, 41(9), (2002). doi:10.1117/1.1497176
Abstract
A novel numerical technique for temperature/strain profiles reconstruction based on Brillouin optical-fiber time-domain analysis (BOTDA) sensors is proposed. In this approach, we search directly for the temperature/strain profile along the fiber that matches the measured data. The algorithm is based on a harmonic expansion of the unknown profile, whose coefficients are determined by a multidimensional minimization. Several numerical simulations, even in presence of noise, prove the capability of the proposed algorithm to compensate for some systematic errors suffered by classical approaches based on the direct reading of Brillouin power spectra.
Romeo Bernini, Aldo Minardo, Luigi Zeni, "Reconstruction technique for stimulated Brillouin scattering distributed fiber-optic sensors," Optical Engineering 41(9), (1 September 2002). http://dx.doi.org/10.1117/1.1497176
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KEYWORDS
Reconstruction algorithms

Temperature metrology

Error analysis

Solids

Optical engineering

Scattering

Fiber optics sensors

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