Research Catalog

Backscattering from rough terrain

Title
Backscattering from rough terrain / R.H. Ott, G.A. Schlak.
Author
Ott, R. H.
Publication
Boulder, Colo. : U.S. Department of Commerce, Environmental Science Services Administration, Research Laboratories, Institute for Telecommunication Sciences, 1967.

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Details

Additional Authors
  • Schlak, G. A. (Gerard Alan)
  • United States. Environmental Science Services Administration. Research Laboratories.
  • Institute for Telecommunication Sciences, publisher.
Description
iv, 45 pages : charts; 27 cm
Summary
Existing theoretical models for electromagnetic scattering from randomly rough surfaces having homogenous and isotropic statistics are investigated. A primary objective is to determine the types of surface statistics that produce realistic echo areas. A secondary objective is to outline the range of validity of the existing theory. In particular, the echo areas for surfaces corresponding to various joint probability density functions (JPDF) and correlation functions are compared. For surfaces with the same root mean square slope, the echo area is found to be less dependent on the JPDF than on the correlation function. Special consideration is given to shadowing effects, which are important for large angles of incidence from the vertical. Also, the effect of finite conductivity is considered. The effect of scattering by trees on over-the-horizon radar (OHR) measurements is investigated qualitatively. It is concluded that the echo area of a rough surface alone (i.e., no trees, buildings, vehicles, etc.) at elevation angles used in OHR radar experiments, is extremely small and is not an important factor in analyzing the backscatter data obtained in OHR problems.
Series Statement
ESSA technical report RL ; 60. ITS ; 57
Uniform Title
  • ESSA technical report RL ; 60. ITS ; 57.
  • ESSA technical report ; RL60-ITS 57.
Subject
  • Radar echoes > Effect of terrain on
  • Backscattering > Statistical analysis
Note
  • "September 1967."
Bibliography (note)
  • Bibliography: p. 19.
OCLC
  • ocm17368666
  • 17368666
  • SCSB-243578
Owning Institutions
Princeton University Library