Accession Number:

ADA231897

Title:

Effect of Cell Size on Radar Clutter Statistics

Descriptive Note:

Final rept. Oct 1988-Sep 1989

Corporate Author:

GEORGIA TECH RESEARCH CORP ATLANTA

Personal Author(s):

Report Date:

1990-09-01

Pagination or Media Count:

26.0

Abstract:

The objective of this study is to investigate through computer simulation the effects of a change in cell size on signal statistics in backward, forward and perpendicular directions of observation when a plane wave is incident at 70 degrees from the vertical on a randomly rough surface. It is found that in the backward direction the signal has a Weibull-like distribution and its mean and variance both decrease with an increase in the cell size starting with a cell less than 1.5 of a wavelength in dimension. When the cell size is around 7.3 lambda x 2.5 lambda, lambda is the electric wavelength, the signal distribution approaches Rayleigh. In forward scattering the signal distribution is found to be closely Gaussian, and as cell size increases, the mean increases as expected. Variance increases also, but only slightly. In the perpendicular direction the signal distribution is again closely Weilbull. Its mean and variance did not show any particular trends with a change in cell size. Author

Subject Categories:

  • Cybernetics
  • Active and Passive Radar Detection and Equipment
  • Radiofrequency Wave Propagation

Distribution Statement:

APPROVED FOR PUBLIC RELEASE