Guided wave pulse echo detection method for corrosion damage of grounding flat steel in different soil environments

The invention discloses a guided wave pulse echo detection method for corrosion damage of grounding flat steel in different soil environments. The method comprises the following steps: S1, acquiring guided wave pulse echo signals of grounding flat steel samples with different corrosion degrees in different soil environments; s2, collecting a guided wave pulse echo signal in the grounding flat steel to be detected; s3, features of the guided wave pulse echo signals of the to-be-detected grounding flat steel and the pulse guided wave echo signals of the grounding flat steel samples are extracted respectively, and a grounding flat steel corrosion defect echo feature set is obtained; and S4, performing fuzzy clustering on the obtained grounding flat steel corrosion defect echo feature set through prior experience, and iteratively updating a clustering center and a membership matrix by using a fuzzy C-mean algorithm to converge an objective function to obtain a final clustering center and a final membership matrix