Low-Frequency Electromagnetic Backscattering from Tunnels
Low-frequency electromagnetic scattering from one or more tunnels in a lossy dielectric half-space is considered. The tunnel radii are assumed small compared to the wavelength of the electromagnetic field in the surrounding medium; a tunnel can thus be modeled as a thin scatterer, described by an equivalent impedance per unit length. We examine the normalized backscattering width for cases in which the air-ground interface is either smooth or rough.
- Research Organization:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 912936
- Report Number(s):
- UCRL-CONF-227353; TRN: US200802%%469
- Resource Relation:
- Conference: Presented at: 2007 IEEE AP-S International Symposium, Honolulu, HI, United States, Jun 10 - Jun 15, 2007
- Country of Publication:
- United States
- Language:
- English
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