[1] Dragomiretskiy K, Zosso D. Variational mode decomposition[J]. IEEE Transactions on Signal Processing, 62, 531-544(2014).

[7] Dragomiretskiy K, Zosso D. Variational mode decomposition[J]. IEEE Trans Signal Process, 62, 531-544(2014).

[8] Daniele T. Review and analysis of peak tracking techniques for fiber bragg grating sensors[J]. Sensors, 17, 1-35(2017).

[9] Arndt R. Analytical line shapes for lorentzian signals broadened by modulation[J]. Journal of Applied Physics, 36, 2522(1965).

[10] Reid J. Second-harmonic detection with tunable diode lasers—Comparison of experiment and theory[J]. Applied Physics, 203-210(1981).

[12] Humeau-Heurtier A, Abraham P, Mahe G. Analysis of laser speckle contrast images variability using a novel empirical mode decomposition： Comparison of results with laser doppler flowmetry signals variability[J]. IEEE Trans Med Imaging, 34, 618-627(2015).

[13] Wu Z H, Huang N E. A study of the characteristics of white noise using the empirical mode decomposition method[J]. Proc R Soc A-Math Phys.Eng.Sci., 460, 1597-1611(2004).