Two-Dimensional Impact Reconstruction Method for Rail Defect Inspection

Table 1

Signal group classification.

Group number	Left side node number/right side node number
𝐺𝐿1/𝐺𝑅1	𝐿1,𝐿5,…,𝐿𝑁−3/𝑅1,𝑅5,…,𝑅𝑁−3
𝐺𝐿2/𝐺𝑅2	𝐿2,𝐿6,…,𝐿𝑁−2/𝑅2,𝑅6,…,𝑅𝑁−2
𝐺𝐿3/𝐺𝑅3	𝐿3,𝐿7,…,𝐿𝑁−1/𝑅3,𝑅7,…,𝑅𝑁−1
𝐺𝐿4/𝐺𝑅4	𝐿4,𝐿8,…,𝐿𝑁/𝑅4,𝑅8,…,𝑅𝑁