Normal mode solution for low-frequency sound propagation in a downward refracting atmosphere above a complex impedance plane.

@article{Raspet1992NormalMS,
  title={Normal mode solution for low-frequency sound propagation in a downward refracting atmosphere above a complex impedance plane.},
  author={Richard Raspet and Geoff Baird and Wei Wu},
  journal={The Journal of the Acoustical Society of America},
  year={1992},
  volume={91 3},
  pages={1341-52}
}
The development of the fast field and parabolic equation solutions to the wave equation has made it possible to solve for the combined effects of refraction in a layered atmosphere and the interaction of sound with a complex impedance ground surface. In many respects the numerical methods have advanced beyond our understanding of the basic phenomena. In an… CONTINUE READING