Propagation and scattering of spherical wave pulses in vegetation using scalar transport theory

Gerald Whitman, Michael Y.C. Wu, Felix K. Schwering

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

A high frequency theoretical model of propagation and scattering in vegetation is presented which uses scalar radiative transport theory. The specific problem analyzed is that of a periodic sequence of Gaussian pulses incident from free space into a forest region (vegetation). The incident pulse train is taken to be a spherical wave that is restricted to a specified solid angle, which is characteristic of radiation produced by a microwave or mm-wave antenna. The forest is modeled as a half-space of randomly distributed particles that scatter and absorb electromagnetic energy. In the forest, strong forward scattering occurs and the theory allows for a comprehensive characterization of the effect of vegetation on the propagation and scattering of spherical wave pulses: their attenuation, their angular spread, their distortion due to pulse broadening.

Original languageEnglish (US)
Article number5422630
Pages (from-to)1662-1676
Number of pages15
JournalIEEE Transactions on Antennas and Propagation
Volume58
Issue number5
DOIs
StatePublished - May 1 2010

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

Keywords

  • Pulse propagation in vegetation
  • Scattering in random media
  • Spherical waves
  • Transport theory

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