Accession Number:

AD0750668

Title:

Point-Scatterer Formulation of Terrain Clutter Statistics

Descriptive Note:

Final rept.

Corporate Author:

NAVAL RESEARCH LAB WASHINGTON DC

Personal Author(s):

Report Date:

1972-09-27

Pagination or Media Count:

48.0

Abstract:

The first-order statistics of terrain clutter are investigated theoretically and experimentally. The return from a point-scatterer a scintillating signal is used as a basis for generating the statistical properties of terrain clutter as observed by side-looking airborne radars. According to the model the limiting distribution of terrain clutter are the Gaussian distribution and the distribution for a scintillating signal specular clutter. An array of point-scatterers within the radar beam produces clutter which has long tails similar to those of a lognormal distribution. The convergence of the first-order statistics of a scintillating signal to the statistics of a sinusoidal signal is demonstrated. Also, the statistics of terrain clutter are inferred from data taken with the Naval Research Laboratorys Four Frequency Radar System by the Kolmogorov--Smirnov test of the cumulative distribution and by the computation of the first five central moments of the normalized radar cross section of terrain in decibels.

Subject Categories:

  • Active and Passive Radar Detection and Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE