Passive Microwave Remote Sensing of an Anisotropic Random-Medium Layer

Jay Kyoon Lee, Jin Au Kong

Research output: Contribution to journalArticlepeer-review

19 Scopus citations


The principle of reciprocity is invoked to calculate the brightness temperatures for passive microwave remote sensing of a two-layer anisotropic random medium. The bistatic scattering coefficients are first computed with the Born approximation and then integrated over the upper hemisphere to be subtracted from unity, in order to obtain the emissivity for the random-medium layer. The theoretical results are illustrated by plotting the emissivities as functions of viewing angles and polarizations. They are used to interpret remote sensing data obtained from vegetation canopy where the aniostropic random-medium model applies. Field measurements with corn stalks arranged in various configurations with preferred azimuthal directions are successfully interpreted with this model.

Original languageEnglish (US)
Pages (from-to)924-932
Number of pages9
JournalIEEE Transactions on Geoscience and Remote Sensing
Issue number6
StatePublished - Nov 1985

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • General Earth and Planetary Sciences


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