Enhanced Strain Measurement Sensitivity with Gold Nanoparticle-Doped Distributed Optical Fibre Sensing

Figure 12

Comparisons between the proposed method and the traditional cross-correlation method at a strain value of 500  and for a spectral range from 1540 nm to 1560 nm. The relative errors between mean values of the 100 cases and the true values with the improved cross-correlation method and traditional cross-correlation method under a noise level of (a) 0% and (b) 10%. The error ratios between the proposed method and traditional cross-correlation method and the corresponding spatial frequency ratios under a noise level of (c) 0% and (d) 10% [45].

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