Accession Number:

ADA148395

Title:

Second Order Bragg Scattering in a SAR,

Descriptive Note:

Corporate Author:

MITRE CORP MCLEAN VA

Personal Author(s):

Report Date:

1984-08-01

Pagination or Media Count:

13.0

Abstract:

Why might we see narrow lines from second order Bragg scattering If we accept the notion that the short-wave components of the ship wake are slightly distorted versions of the Kelvin wake, then there is the possibility of scattering, at a given place, from a spectrum of waves. The Dabob Bay data indicates that there is little energy in the wake having wave numbers capable of producing first-order Bragg scattering of L-band radar. This could be taken as explaining why even narrower V wakes are not observed. But the observations do show considerable enhancement of waves of twice the Bragg wavelength at the angle where a SAR wake is observed.

Subject Categories:

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

Distribution Statement:

APPROVED FOR PUBLIC RELEASE