EMISAR: An Absolutely Calibrated Polarimetric L- and C-band SAR

Erik Lintz Christensen; Niels Skou; Jørgen Dall; Kim Woelders; Jan Hjelm Jørgensen; Johan Granholm; Søren Nørvang Madsen

doi:10.1109/36.729356

EMISAR: An Absolutely Calibrated Polarimetric L- and C-band SAR

Erik Lintz Christensen
, Niels Skou
, Jørgen Dall
, Kim Woelders
, Jan Hjelm Jørgensen
, Johan Granholm
, Søren Nørvang Madsen

Research output: Contribution to journal › Journal article › Research › peer-review

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Abstract

EMISAR is a high-resolution (2×2 m), fully polarimetric, dual-frequency (L- and C-band) synthetic aperture radar (SAR) system designed for remote-sensing applications. The SAR is operated at high altitudes on a Gulfstream G-3 jet aircraft. The system is very well calibrated and has low sidelobes and low cross-polar contamination. Digital technology has been utilized to realize a flexible and highly stable radar with variable resolution, swath width, and imaging geometry. Thermal control and several calibration loops have been built into the system to ensure system stability and absolute calibration. Accurately measured antenna gains and radiation patterns are included in the calibration. The processing system is developed to support data calibration, which is the key to most of the current applications. Recent interferometric enhancements are important for many scientific applications

Original language	English
Journal	I E E E Transactions on Geoscience and Remote Sensing
Volume	36
Issue number	6
Pages (from-to)	1852-1865
ISSN	0196-2892
DOIs	https://doi.org/10.1109/36.729356
Publication status	Published - 1998

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Copyright: 1998 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE

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title = "EMISAR: An Absolutely Calibrated Polarimetric L- and C-band SAR",

abstract = "EMISAR is a high-resolution (2×2 m), fully polarimetric, dual-frequency (L- and C-band) synthetic aperture radar (SAR) system designed for remote-sensing applications. The SAR is operated at high altitudes on a Gulfstream G-3 jet aircraft. The system is very well calibrated and has low sidelobes and low cross-polar contamination. Digital technology has been utilized to realize a flexible and highly stable radar with variable resolution, swath width, and imaging geometry. Thermal control and several calibration loops have been built into the system to ensure system stability and absolute calibration. Accurately measured antenna gains and radiation patterns are included in the calibration. The processing system is developed to support data calibration, which is the key to most of the current applications. Recent interferometric enhancements are important for many scientific applications",

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note = "Copyright: 1998 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE",

year = "1998",

doi = "10.1109/36.729356",

language = "English",

volume = "36",

pages = "1852--1865",

journal = "I E E E Transactions on Geoscience and Remote Sensing",

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T1 - EMISAR: An Absolutely Calibrated Polarimetric L- and C-band SAR

AU - Christensen, Erik Lintz

AU - Skou, Niels

AU - Dall, Jørgen

AU - Woelders, Kim

AU - Jørgensen, Jan Hjelm

AU - Granholm, Johan

AU - Madsen, Søren Nørvang

N1 - Copyright: 1998 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE

PY - 1998

Y1 - 1998

N2 - EMISAR is a high-resolution (2×2 m), fully polarimetric, dual-frequency (L- and C-band) synthetic aperture radar (SAR) system designed for remote-sensing applications. The SAR is operated at high altitudes on a Gulfstream G-3 jet aircraft. The system is very well calibrated and has low sidelobes and low cross-polar contamination. Digital technology has been utilized to realize a flexible and highly stable radar with variable resolution, swath width, and imaging geometry. Thermal control and several calibration loops have been built into the system to ensure system stability and absolute calibration. Accurately measured antenna gains and radiation patterns are included in the calibration. The processing system is developed to support data calibration, which is the key to most of the current applications. Recent interferometric enhancements are important for many scientific applications

AB - EMISAR is a high-resolution (2×2 m), fully polarimetric, dual-frequency (L- and C-band) synthetic aperture radar (SAR) system designed for remote-sensing applications. The SAR is operated at high altitudes on a Gulfstream G-3 jet aircraft. The system is very well calibrated and has low sidelobes and low cross-polar contamination. Digital technology has been utilized to realize a flexible and highly stable radar with variable resolution, swath width, and imaging geometry. Thermal control and several calibration loops have been built into the system to ensure system stability and absolute calibration. Accurately measured antenna gains and radiation patterns are included in the calibration. The processing system is developed to support data calibration, which is the key to most of the current applications. Recent interferometric enhancements are important for many scientific applications

U2 - 10.1109/36.729356

DO - 10.1109/36.729356

M3 - Journal article

SN - 0196-2892

VL - 36

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EP - 1865

JO - I E E E Transactions on Geoscience and Remote Sensing

JF - I E E E Transactions on Geoscience and Remote Sensing

IS - 6

ER -

EMISAR: An Absolutely Calibrated Polarimetric L- and C-band SAR

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