Accession Number:

ADA285587

Title:

Scattering of an FM Signal From an Array of Spheres

Descriptive Note:

Final rept.

Corporate Author:

NAVAL UNDERSEA WARFARE CENTER NEWPORT DIV NEW LONDON CT NEW LONDON DETACHMENT

Report Date:

1994-08-15

Pagination or Media Count:

16.0

Abstract:

This document describes the investigation of the dependence of peak target strength on source bandwidth and scatterer spacing using arrays of rigid scatterers and LFM signals at 200-, 400-, and 800-Hz bandwidths. The results demonstrate that, as the bandwidth increases, the average peak target strength increases and shows less aspect dependence except near 90 degrees due to more opportunity for coherent addition of the scattering amplitudes. As the spacing between the scatterers was increased, there were more fluctuations in aspect angle due to the greater directivity of the scattering pattern. Misaligning scatterers in a regularly spaced array smoothed the overall response and increased the average peak target strength. Array of Spheres, Aspect Angle, Peak Target Strength, Scatterer Spacing, Signal Scattering, Scattering Amplitude, Source Bandwidth

Subject Categories:

  • Acoustic Detection and Detectors
  • Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE