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Title: Two target height effects on interferometric synthetic aperture radar coherence

Useful products generated from interferometric synthetic aperture radar (IFSAR) complex data include height measurement, coherent change detection, and classification. The IFSAR coherence is a spatial measure of complex correlation between two collects, a product of IFSAR signal processing. A tacit assumption in such IFSAR signal processing is that one height target exists in each range-Doppler cell. This paper presents simulations of IFSAR coherence if two targets with different heights exist in a given range-Doppler cell, a condition in IFSAR collections produced by layover. It also includes airborne IFSAR data confirming the simulation results. The paper concludes by exploring the implications of the results on IFSAR classification and height measurements.
Authors:
;
Publication Date:
OSTI Identifier:
752539
Report Number(s):
SAND2000-0577C
TRN: AH200018%%350
DOE Contract Number:
AC04-94AL85000
Resource Type:
Conference
Resource Relation:
Conference: SPIE's AeroSense 2000, Orlando, FL (US), 04/24/2000--04/28/2000; Other Information: PBD: 7 Mar 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; HEIGHT; DATA ANALYSIS; DATA PROCESSING; TARGETS; IMAGE PROCESSING; CLASSIFICATION; INTERFEROMETRIC: SAR; COHERENCE; LAYOVER