An airborne P-band synthetic aperture radar system and its application in the southwest China

Xueya Yang; Xuelian Zhong

doi:10.1117/12.3019932

23 January 2024 An airborne P-band synthetic aperture radar system and its application in the southwest China

Xueya Yang, Xuelian Zhong

Proceedings Volume 12978, Fourth International Conference on Geology, Mapping, and Remote Sensing (ICGMRS 2023); 129780Y (2024) https://doi.org/10.1117/12.3019932
Event: 2023 4th International Conference on Geology, Mapping and Remote Sensing (ICGMRS 2023), 2023, wuhan, China

Abstract

Mapping, monitoring and parameter inversion in the mountain areas covered with dense vegetation as well as cloud and mist is always a complicated subject. Synthetic aperture radar (SAR) is an effective sensor of great potential to solve this problem. In this paper, a high resolution P-band airborne SAR system is developed, which is the first quantitative airborne P-band SAR system for business operation in China. The inherent signal ambiguity phenomenon for wide beam radar system is discussed, and the solution is suggested and validated with this radar system. Then a flight campaign is launched with this P-band SAR system in the Southwest China. The defocusing introduced by the dramatic terrain undulations is analysed detailedly. By co-registering the external digital elevation model (DEM) to the SAR image and motion compensation, the refocused quality of the polarimetric SAR images satisfies the user’s requirement. After polarimetric and radiometric calibration, the polarized composite and geocoded image products are obtained for further studies. With this P-band airborne SAR system, the repeat-pass interferometric data are expected to be collected in the future for the vegetated mountainous area, and it will play more important role in the fields of topographic mapping and deformation monitoring.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Xueya Yang and Xuelian Zhong "An airborne P-band synthetic aperture radar system and its application in the southwest China", Proc. SPIE 12978, Fourth International Conference on Geology, Mapping, and Remote Sensing (ICGMRS 2023), 129780Y (23 January 2024); https://doi.org/10.1117/12.3019932

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KEYWORDS

Synthetic aperture radar

Polarimetry

Radiometric calibration

Antennas

Image quality

Image processing

Polarization

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