The paper, titled “Precise analysis of gravitational waves from binary neutron star coalescence using Hilbert–Huang transform based on Akima spline interpolation”, has been published in Progress of Theoretical and Experimental Physics.

Itsuki Yoda, Ken-ichi Oohara, Hirotaka Takahashi, Kazuki Sakai, “Precise analysis of gravitational waves from binary neutron star coalescence using Hilbert–Huang transform based on Akima spline interpolation”, Progress of Theoretical and Experimental Physics, ptad101 (2023).
doi:10.1093/ptep/ptad101