Nguyen, Van Duc, et al. “Proposal for a Doppler Shift Compensation Method Using Non-Uniform FFT With Pilot Carrier Frequency for OFDM-Based Underwater Acoustic Communication Systems”. JST: Smart Systems and Devices, vol. 33, no. 3, Sept. 2023, pp. 1-7, doi:10.51316/jst.168.ssad.2023.33.3.1.