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- W310448522 abstract "Abstract : Under the assumption of high frequency, wave propagation can be described by the ray method. Many quantities in wave phenomena are characterized by some ray parameters and their derivatives. For example, the slope of arrival time-offset curve is characterized by the emergence angle of a ray; the curvature is characterized by derivative of that angle, and the amplitude of the signal is characterized by the derivative of the taking-off angle. In this paper, we give a recursive algorithm for ray-parameter derivatives, when the medium is made up of constant-velocity layers separated by arbitrary, smooth interfaces. The algorithm uses derivatives of interfaces, intersection points of rays with the interfaces, and angles of incidence and transmission, all of which are easily computed. A conclusion of these formulas is that no ray caustic exists for transmission or for the reflection from any one of the reflectors when the interfaces are flat." @default.
- W310448522 created "2016-06-24" @default.
- W310448522 creator A5053907293 @default.
- W310448522 date "1991-05-20" @default.
- W310448522 modified "2023-10-16" @default.
- W310448522 title "A Recursive Algorithm for Computing Ray-Parameter Derivatives" @default.
- W310448522 doi "https://doi.org/10.21236/ada241005" @default.
- W310448522 hasPublicationYear "1991" @default.
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