Polarimetric calibration for a ground-based synthetic aperture radar system

Suyun Wang; Weike Feng; Motoyuki Sato

doi:10.1109/PIERS-Fall48861.2019.9021317

Polarimetric calibration for a ground-based synthetic aperture radar system

Suyun Wang, Weike Feng, Motoyuki Sato

Department of Basic Studies

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

We propose a polarimetric calibration procedure required to produce accurate polarimetric characteristic of the illuminating scene by GB-SAR. The correction for polarimetric distortions of the GB-SAR system employs only three types of calibration targets, i.e., trihedral, dihedral and 22.5°-rotated dihedral corner reflectors. Azimuth and frequency dependencies on polarimetric responses of a trihedral corner reflector were evaluated by numerical simulation, and we found little difference within 300 MHz bandwidth and of 2 m synthetic aperture length. The proposed polarimetric calibration method was verified by experiment. An amplitude error as low as 0.5 dB and phase error within 3° was achieved by the GB-SAR system at 17 GHz, showing excellent agreement between the theoretical and calibrated polarimetric signatures for a trihedral corner reflector. Finally, we investigate the effects of polarimetric calibration by Pauli decomposition, which indicates desirable polarimetric performance after polarimetric calibration.

Original language	English
Title of host publication	2019 Photonics and Electromagnetics Research Symposium - Fall, PIERS - Fall 2019 - Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	632-639
Number of pages	8
ISBN (Electronic)	9781728153049
DOIs	https://doi.org/10.1109/PIERS-Fall48861.2019.9021317
Publication status	Published - 2019 Dec
Event	2019 Photonics and Electromagnetics Research Symposium - Fall, PIERS - Fall 2019 - Xiamen, China Duration: 2019 Dec 17 → 2019 Dec 20

Publication series

Name	2019 Photonics and Electromagnetics Research Symposium - Fall, PIERS - Fall 2019 - Proceedings

Conference

Conference	2019 Photonics and Electromagnetics Research Symposium - Fall, PIERS - Fall 2019
Country	China
City	Xiamen
Period	19/12/17 → 19/12/20

ASJC Scopus subject areas

Electrical and Electronic Engineering
Atomic and Molecular Physics, and Optics
Electronic, Optical and Magnetic Materials
Mathematical Physics

Access to Document

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Cite this

Wang, S., Feng, W., & Sato, M. (2019). Polarimetric calibration for a ground-based synthetic aperture radar system. In 2019 Photonics and Electromagnetics Research Symposium - Fall, PIERS - Fall 2019 - Proceedings (pp. 632-639). [9021317] (2019 Photonics and Electromagnetics Research Symposium - Fall, PIERS - Fall 2019 - Proceedings). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/PIERS-Fall48861.2019.9021317

Polarimetric calibration for a ground-based synthetic aperture radar system. / Wang, Suyun; Feng, Weike; Sato, Motoyuki.

2019 Photonics and Electromagnetics Research Symposium - Fall, PIERS - Fall 2019 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2019. p. 632-639 9021317 (2019 Photonics and Electromagnetics Research Symposium - Fall, PIERS - Fall 2019 - Proceedings).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Wang, S, Feng, W & Sato, M 2019, Polarimetric calibration for a ground-based synthetic aperture radar system. in 2019 Photonics and Electromagnetics Research Symposium - Fall, PIERS - Fall 2019 - Proceedings., 9021317, 2019 Photonics and Electromagnetics Research Symposium - Fall, PIERS - Fall 2019 - Proceedings, Institute of Electrical and Electronics Engineers Inc., pp. 632-639, 2019 Photonics and Electromagnetics Research Symposium - Fall, PIERS - Fall 2019, Xiamen, China, 19/12/17. https://doi.org/10.1109/PIERS-Fall48861.2019.9021317

Wang S, Feng W, Sato M. Polarimetric calibration for a ground-based synthetic aperture radar system. In 2019 Photonics and Electromagnetics Research Symposium - Fall, PIERS - Fall 2019 - Proceedings. Institute of Electrical and Electronics Engineers Inc. 2019. p. 632-639. 9021317. (2019 Photonics and Electromagnetics Research Symposium - Fall, PIERS - Fall 2019 - Proceedings). https://doi.org/10.1109/PIERS-Fall48861.2019.9021317

Wang, Suyun ; Feng, Weike ; Sato, Motoyuki. / Polarimetric calibration for a ground-based synthetic aperture radar system. 2019 Photonics and Electromagnetics Research Symposium - Fall, PIERS - Fall 2019 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2019. pp. 632-639 (2019 Photonics and Electromagnetics Research Symposium - Fall, PIERS - Fall 2019 - Proceedings).

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