Wavefield separation using the f–ξ domain for vertical seismic profiling data Baotong Liu, Qiyuan Liu, Yingshuang Jiang, Donglin Liu and Xuefu Kang MATEC Web Conf., 395 (2024) 01004 Published online: 15 May 2024 DOI: 10.1051/matecconf/202439501004