Method for rapidly identifying charcoal carbonization temperature based on spectrum analysis

The invention provides a method for rapidly identifying the charcoal carbonization temperature based on spectrum analysis. The method comprises the following steps: (1) establishing a charcoal spectrum database; (2) carrying out principal component analysis (PCA) on the spectrum database, and extracting front q principal components with the highest contribution rates according to the size of the variance contribution rate; (3) carrying out mode identification on the charcoal carbonization temperature by virtue of a Fisher linear discriminant analysis (FLD) method according to front q principal components Z1, Z2, ..., Zq obtained through PCA analysis of a sample; (4) scanning a to-be-identified sample spectrum; (5) carrying out same principal component analysis on the to-be-identified sample spectrum, and extracting front q principal components Z1, Z2, ..., Zq with the highest contribution rates according to the size of the variance contribution rate; and (6) classifying to-be-identified samples into a corresp