An Improved Empirical Mode Decomposition Based on Local Integral Mean and Its Application in Signal Processing

Figure 16

(a, b) Figures of the performance measure (equation (23)) of EMD decomposing Sig₃; (c–f) figures of the performance measure (equation (24)) of EMD (c, d) and IMMD (e, f) decomposing Sig₃; (a), (c), and (e) are the 3D version and their 2D projection onto the plane of amplitude and frequency ratios is shown in (b), (d), and (f); the black thick lines stand for ρ = 0.5 in (a), (c), and (e); red (white) dashed lines stand for () [41] in (b), (d), and (f).

(a)

(b)

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(d)

(e)

(f)