A Method of HCN Gas Spectrum Denoising and Baseline Removal Used for FBG Interrogation
Hydrogen cyanide (HCN) gas based fiber Bragg grating (FBG) interrogation is a promising approach in thermal cycling environment.However, the HCN spectrum suffers from strong noise and baseline wander induced by the interrogation system, which limits the measurement stability and reliability.In this paper, we propose an integrated method for spectra