Spatial Resolution Enhancement in Preactivated BOTDA Schemes by Numerical Processing

Abstract

novel processing algorithm is demonstrated for time-domain high-resolution Brillouin schemes based on acoustic field preactivation. An iterative method is employed to correct the measured data from spurious effects associated with acoustic wave transients. Based on a model of the stimulated Brillouin scattering in the frequency domain, the spatial resolution degrading features are computed and subtracted from the acquired data. Experimental tests with 20-cm spatial resolution and dark-pulse pumping are reported.

Original document

The different versions of the original document can be found in:

• http://dx.doi.org/10.1109/LPT.2012.2192424

• http://hdl.handle.net/11591/320987

• http://xplorestaging.ieee.org/ielx5/68/6196242/06176202.pdf?arnumber=6176202,

http://dx.doi.org/10.1109/lpt.2012.2192424

• https://ui.adsabs.harvard.edu/abs/2012IPTL...24.1003M/abstract,

http://yadda.icm.edu.pl/yadda/element/bwmeta1.element.ieee-000006176202,

https://www.infona.pl/resource/bwmeta1.element.ieee-art-000006176202,

https://ieeexplore.ieee.org/document/6176202,

https://academic.microsoft.com/#/detail/1964367812