A Denoising Method for Cable Partial Discharge Signals Based on Image Information Entropy and Multivariate Variational Mode Decomposition. - Xiaowei Wang 002; Xue Wang; Jie Gao 005; Ying Tian; Qiankun Kang; Fan Zhang 121; Weibo Liu 003 (IEEE Trans. Instrum. Meas., 2024)