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Title: Process for combining multiple passes of interferometric SAR data

Interferometric synthetic aperture radar (IFSAR) is a promising technology for a wide variety of military and civilian elevation modeling requirements. IFSAR extends traditional two dimensional SAR processing to three dimensions by utilizing the phase difference between two SAR images taken from different elevation positions to determine an angle of arrival for each pixel in the scene. This angle, together with the two-dimensional location information in the traditional SAR image, can be transformed into geographic coordinates if the position and motion parameters of the antennas are known accurately.
Authors:
 [1] ;  [1] ;  [1]
  1. (Albuquerque, NM)
Publication Date:
OSTI Identifier:
873396
Report Number(s):
US 6150972
US patent application 09/128371
DOE Contract Number:
AC04-94AL85000
Resource Type:
Patent
Research Org:
SANDIA CORP
Country of Publication:
United States
Language:
English
Subject:
process; combining; multiple; passes; interferometric; data; synthetic; aperture; radar; ifsar; promising; technology; wide; variety; military; civilian; elevation; modeling; requirements; extends; traditional; dimensional; processing; dimensions; utilizing; phase; difference; images; positions; determine; angle; arrival; pixel; scene; two-dimensional; location; information; image; transformed; geographic; coordinates; position; motion; parameters; antennas; accurately; aperture radar; multiple passes; phase difference; wide variety; synthetic aperture; multiple pass; location information; /342/