[1] Xu J J, Bu L B, Liu J Q et al. Airborne high-spectral-resolution lidar for atmospheric aerosol detection[J]. Chinese Journal of Lasers, 47, 0710003(2020).

[2] Ma Y Y, Gong W, Wang P C et al. New dust aerosol identification method for spaceborne lidar measurements[J]. Journal of Quantitative Spectroscopy and Radiative Transfer, 112, 338-345(2011).

[3] Huang Z W, Wang Y K, Bi J R et al. An overview of aerosol lidar: Progress and prospect[J]. National Remote Sensing Bulletin, 26, 834-851(2022).

[4] Li C, Pan Z X, Mao F Y et al. De-noising and retrieving algorithm of Mie lidar data based on the particle filter and the Fernald method[J]. Optics Express, 23, 26509-26520(2015).

[5] Tian X M, Liu D, Xu J W et al. Review of lidar technology for atmosphere monitoring[J]. Journal of Atmospheric and Environmental Optics, 13, 321-341(2018).

[6] Ding H B, Wang Z Z, Liu D. Comparison of de-noising methods of LiDAR signal[J]. Acta Optica Sinica, 41, 2401001(2021).

[7] Mao F Y, Liu J, Wang L et al. Denoising and retrieval algorithm based on a dual ensemble Kalman filter for elastic lidar data[J]. Optics Communications, 433, 137-143(2019).

[8] Wang X F, Jin S Q, Hou S Y. Research on denoising method of laser detection sound signal based on wavelet threshold[J]. Journal of Atmospheric and Environmental Optics, 13, 388-394(2018).

[9] Chang J H, Zhu L Y, Li H X et al. Noise reduction in lidar signal using correlation-based EMD combined with soft thresholding and roughness penalty[J]. Optics Communications, 407, 290-295(2018).

[10] Gu L, Fei Z W, Xu X B. Enhancement method of weak lidar signal based on adaptive variational modal decomposition and wavelet threshold denoising[J]. Infrared Physics and Technology, 120, 103991(2022).

[11] Jiang L H, Fu C, Liu W Q et al. Lidar backscattering signal denoising method based on adaptive multi-scale morphological filtering and EMD[J]. Infrared and Laser Engineering, 44, 1673-1679(2015).

[12] Zhou Z R, Hua D X, Yang R et al. De-noising method for Mie scattering lidar echo signal based on wavelet theory[J]. Acta Photonica Sinica, 45, 0701002(2016).

[13] Li H X, Chang J H, Xu F et al. Efficient lidar signal denoising algorithm using variational mode decomposition combined with a whale optimization algorithm[J]. Remote Sensing, 11, 126(2019).

[14] Qi B L, Yang G H, Guo D B et al. EMD and VMD-GWO parallel optimization algorithm to overcome lidar ranging limitations[J]. Optics Express, 29, 2855-2873(2021).

[15] Wang Z Z, Ding H B, Wang B X et al. New denoising method for lidar signal by the WT-VMD joint algorithm[J]. Sensors, 22, 5978(2022).

[16] Zhao H, Zhang H L, Guo J Q et al. Improved variable weighted Kalman filter algorithm for lidar denoising[J]. Journal of Electronic Measurement and Instrumentation, 36, 188-195(2022).

[17] Ma Y Z, Liu K, Zhang Y F et al. Laser radar signal denoising algorithm based on CEEMD combined with improved wavelet threshold[J]. Systems Engineering and Electronics, 45, 93-100(2023).

[18] Nazari M, Sakhaei S M. Successive variational mode decomposition[J]. Signal Processing, 174, 107610(2020).

[19] Bandt C, Pompe B. Permutation entropy: A natural complexity measure for time series[J]. Physical review letters, 88, 174102(2002).

[20] Ferahtia S, Houari A, Rezk H et al. Red-tailed hawk algorithm for numerical optimization and real-world problems[J]. Scientific Reports, 13, 12950(2023).

[21] Chang L K, Wei J X, Yu F et al. A hybrid denoising method for hemispherical resonant gyroscope based on LMD-WSVD[J]. Systems Engineering and Electronics, 45, 497-503(2023).

[22] Dong L L, Jiang R C, Xu N W et al. Research on microseismic signal denoising method based on LMD-SVD[J]. Advanced Engineering Sciences, 51, 126-136(2019).