Tùng, Lưu, Thanh Trung Thai, and Khanh Duy Phan. “Elimination of PPG Signal Disturbances through Variational Mode Decomposition and Hilbert Transform”. VNUHCM Journal of Engineering and Technology 7, no. 2 (September 30, 2024): 2258-2266. Accessed April 3, 2025. https://stdjet.scienceandtechnology.com.vn/index.php/stdjet/article/view/1346.