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Title: Height estimation improvement via baseline calibration for a dual-pass, dual-antenna ground mapping IFSAR system.

Abstract

Data collection for interferometric synthetic aperture radar (IFSAR) mapping systems currently utilize two operation modes. A single-antenna, dual-pass IFSAR operation mode is the first mode in which a platform carrying a single antenna traverses a flight path by the scene of interest twice collecting data. A dual-antenna, single-pass IFSAR operation mode is the second mode where a platform possessing two antennas flies past the scene of interest collecting data. There are advantages and disadvantages associated with both of these data collection modes. The single-antenna, dual-pass IFSAR operation mode possesses an imprecise knowledge of the antenna baseline length but allows for large antenna baseline lengths. This imprecise antenna baseline length knowledge lends itself to inaccurate target height scaling. The dual-antenna, one-pass IFSAR operation mode allows for a precise knowledge of the limited antenna baseline length but this limited baseline length leads to increased target height noise. This paper presents a new, innovative dual-antenna, dual-pass IFSAR operation mode which overcomes the disadvantages of the two current IFSAR operation modes. Improved target height information is now obtained with this new mode by accurately estimating the antenna baseline length between the dual flight passes using the data itself. Consequently, this new IFSAR operation modemore » possesses the target height scaling accuracies of the dual-antenna, one-pass operation mode and the height-noise performance of the one-antenna, dual-pass operation mode.« less

Authors:
;  [1]; ;
  1. (University of New Mexico, Albuquerque, NM)
Publication Date:
Research Org.:
Sandia National Laboratories
Sponsoring Org.:
USDOE
OSTI Identifier:
1003930
Report Number(s):
SAND2003-2853C
TRN: US201103%%20
DOE Contract Number:
AC04-94AL85000
Resource Type:
Conference
Resource Relation:
Conference: Proposed for presentation at SPIE Earth Observing Systems VIII held August 3-8, 2003 in San Diego, CA.
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION; OPTICAL RADAR; INTERFEROMETRY; ANTENNAS; CALIBRATION; PERFORMANCE; DATA ACQUISITION SYSTEMS; HEIGHT; TARGETS

Citation Formats

Martinez, Ana, Jamshidi, Mohammad, Bickel, Douglas Lloyd, and Doerry, Armin Walter. Height estimation improvement via baseline calibration for a dual-pass, dual-antenna ground mapping IFSAR system.. United States: N. p., 2003. Web.
Martinez, Ana, Jamshidi, Mohammad, Bickel, Douglas Lloyd, & Doerry, Armin Walter. Height estimation improvement via baseline calibration for a dual-pass, dual-antenna ground mapping IFSAR system.. United States.
Martinez, Ana, Jamshidi, Mohammad, Bickel, Douglas Lloyd, and Doerry, Armin Walter. 2003. "Height estimation improvement via baseline calibration for a dual-pass, dual-antenna ground mapping IFSAR system.". United States. doi:.
@article{osti_1003930,
title = {Height estimation improvement via baseline calibration for a dual-pass, dual-antenna ground mapping IFSAR system.},
author = {Martinez, Ana and Jamshidi, Mohammad and Bickel, Douglas Lloyd and Doerry, Armin Walter},
abstractNote = {Data collection for interferometric synthetic aperture radar (IFSAR) mapping systems currently utilize two operation modes. A single-antenna, dual-pass IFSAR operation mode is the first mode in which a platform carrying a single antenna traverses a flight path by the scene of interest twice collecting data. A dual-antenna, single-pass IFSAR operation mode is the second mode where a platform possessing two antennas flies past the scene of interest collecting data. There are advantages and disadvantages associated with both of these data collection modes. The single-antenna, dual-pass IFSAR operation mode possesses an imprecise knowledge of the antenna baseline length but allows for large antenna baseline lengths. This imprecise antenna baseline length knowledge lends itself to inaccurate target height scaling. The dual-antenna, one-pass IFSAR operation mode allows for a precise knowledge of the limited antenna baseline length but this limited baseline length leads to increased target height noise. This paper presents a new, innovative dual-antenna, dual-pass IFSAR operation mode which overcomes the disadvantages of the two current IFSAR operation modes. Improved target height information is now obtained with this new mode by accurately estimating the antenna baseline length between the dual flight passes using the data itself. Consequently, this new IFSAR operation mode possesses the target height scaling accuracies of the dual-antenna, one-pass operation mode and the height-noise performance of the one-antenna, dual-pass operation mode.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 2003,
month = 7
}

Conference:
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