Guo-Jun Xu

Propagation characteristics of ultra-low-frequency surface-trapped acoustic-gravity waves excited by an underwater point source

At ultra-low frequencies, underwater pressure fields may be influenced by dynamic free-surface motion as well as conventional water-column acoustics. This study investigates whether gravity-restored free-surface coupling creates a surface-trapped acoustic–gravity-wave pathway that is absent from a pressure-release mode...

An accurate ship-radiated noise recognition CNN-Transformer classifier based on multi feature fusion