资 源 简 介
A function to raytrace through a sound speed profile to a given time.
Raytrace will trace the path sound will travel through a medium with an
isotropic horizontal sound speed profile and a vertical sound speed
profile given by (zz,cc) from a point (xo,zo) and departing at an angle
theta0 for a time of tt seconds. The path is returned in vectors x and z.
The actual time of travel is returned in t, which may be slightly greater
that tt. The sound speed profile should include a measurement at the
surface (zz = 0). If it does not, the profile will be extended to the
surface by replicating the first measurement there.
In addition to the above, raytrace() handles caustics (when rays bend
through horizontal) and reflections off the surface (z=0) and bottom
which is taken to be at the maximum depth measurement in the soun
