Abstract
Using the path-integral approach various approximate solutions for a high-frequency field propagating in a random medium have been constructed. It has been shown that in order to obtain proper intensity correlation characteristics uncertainty considerations play an important role. One of the proposed approaches allowing us to account for the uncertainty in the spatial location and the slope of geometrical ray trajectories is based on the transfer to a higher-dimensional space by defining a paired field product and its spectral transforms known as Wigner and ambiguity functions. The values of these functions at the source plane and the observation plane are related by mixed space-spectral propagators. Presenting the path integral formulation for these propagators and replacing the multiple trajectories by straight ray trajectories leads to solutions which correctly represent intensity correlation characteristics.
| Original language | English |
|---|---|
| Pages (from-to) | 119-124 |
| Number of pages | 6 |
| Journal | Computers and Structures |
| Volume | 67 |
| Issue number | 1-3 |
| DOIs | |
| State | Published - 1 Apr 1998 |
ASJC Scopus subject areas
- Civil and Structural Engineering
- Modeling and Simulation
- General Materials Science
- Mechanical Engineering
- Computer Science Applications