Spectral recognition based on interferogram matching

One advantage of interferential spectrometer is that it provides high-resolution spectrum, which can be used to recognize and analyze objects through spectral matching. The Fourier transform is a necessary step in converting inferferogram to spectrum, while it is complex and time-consuming. A spectral recognition technology based on interferogram matching is proposed without Fourier transform. The interferogram of object to be matched is obtained by interferential spectrometer, and it is matched to the expected one through correlation calculation， which is a relatively rapid process. The simulation result validates the feasibility of the technology.