Marine Controlled-Source Electromagnetic Data Denoising Method Using Symplectic Geometry Mode Decomposition

The marine controlled-source electromagnetic (CSEM) method is an efficient tool for hydrocarbon exploration. amplitudes of signals decay rapidly with the increasing offset, so are easily contaminated by various kinds noise. A denoising critical to improve data quality, but diversity noise makes difficult. Specific frequency transmitted exploration requirements, and thus traditional filtering methods not suitable. Symplectic geometry mode decomposition (SGMD), a new decompose signals, has outstanding performance robustness. Furthermore, it can reduce multiple types reconstructing single components. In this study, we introduced SGMD CSEM improved quality significantly. experiments show that better than variational sym4 wavelet method.