Time-Frequency Characteristics of Seismic Signals of Second-Sampling Instruments Based on Variational Mode Decomposition Optimized by Sparse Index

Xianxin TU, Pinji LÜ, Cheng WENG, Yifan AN, Zhihui ZENG, Bo KANG

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Journal of Geodesy and Geodynamics ›› 2025, Vol. 45 ›› Issue (11) : 1204-1210. DOI: 10.14075/j.jgg.2024.11.539

Time-Frequency Characteristics of Seismic Signals of Second-Sampling Instruments Based on Variational Mode Decomposition Optimized by Sparse Index

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{{article.zuoZheEn_L}}. {{article.title_en}}[J]. {{journal.qiKanMingCheng_EN}}, 2025, 45(11): 1204-1210 https://doi.org/10.14075/j.jgg.2024.11.539

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