Identifying and Correcting Step Losses in Single-Ended Fiber-Optic Distributed Temperature Sensing Data

Figure 4

Identifying step losses from the Raman spectra signals. (a) Corrected temperature trace along the length of the cable. (b) Raw Raman spectra Stokes and anti-Stokes data. (c) 10-point running variance of the raw Raman spectra data.

(a) Corrected temperature trace

(b) Raman spectra signals

(c) Raman spectra running variance