Application of Low-Frequency Processing Method Based on VMD Algorithm in Blasting Signal Processing

Figure 1

VMD decomposition results under different parameters. (a) α = 1000 with (i) K = 2, (ii) K = 3, (iii) K = 4, and (iv) K = 5. (b) α = 500 with (i) K = 2, (ii) K = 3, (iii) K = 4, and (iv) K = 5.

(a)

(b)