skip to main content

Title: A null-steering viewpoint of interferometric SAR

Interferometric synthetic aperture radar (IFSAR) extends the two-dimensional imaging capability of traditional synthetic aperture radar to three-dimensions by using an aperture in the elevation plane to estimate the 3-D structure of the target. The operation of this additional aperture can be viewed from a null-steering point of view, rather than the traditional phase determination point of view. Knowing that IFSAR can be viewed from the null-steering perspective allows one to take advantage of the mathematical foundation developed for null-steering arrays. In addition, in some problems of interest in IFSAR the null-steering perspective provides better intuition and suggests alternative solutions. One example is the problem of estimating building height where layover is present.
Authors:
Publication Date:
OSTI Identifier:
755624
Report Number(s):
SAND99-3220C
TRN: AH200021%%59
DOE Contract Number:
AC04-94AL85000
Resource Type:
Conference
Resource Relation:
Conference: IEEE Geoscience and Remote Sensing Symposium 2000, Honolulu, HI (US), 07/24/2000--07/28/2000; Other Information: PBD: 2 May 2000
Research Org:
Sandia National Labs., Albuquerque, NM (US); Sandia National Labs., Livermore, CA (US)
Sponsoring Org:
US Department of Energy (US)
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION; RADAR; INTERFEROMETRY; THREE-DIMENSIONAL CALCULATIONS; DATA ANALYSIS; BUILDINGS; HEIGHT