Error Analysis and Processing Method of Non-stationary Airborne Fully Polarimetric SAR Quantitative Measurement

LIU Yabo; ZHOU Xiaojie; LU Min; YU Zhongjun

doi:10.11999/JEIT220475

Volume 45 Issue 5

May 2023

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Article Navigation > Journal of Electronics & Information Technology > 2023 > 45(5): 1611-1618

LIU Yabo, ZHOU Xiaojie, LU Min, YU Zhongjun. Error Analysis and Processing Method of Non-stationary Airborne Fully Polarimetric SAR Quantitative Measurement[J]. Journal of Electronics & Information Technology, 2023, 45(5): 1611-1618. doi: 10.11999/JEIT220475

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LIU Yabo, ZHOU Xiaojie, LU Min, YU Zhongjun. Error Analysis and Processing Method of Non-stationary Airborne Fully Polarimetric SAR Quantitative Measurement[J]. Journal of Electronics & Information Technology, 2023, 45(5): 1611-1618. doi: 10.11999/JEIT220475

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Error Analysis and Processing Method of Non-stationary Airborne Fully Polarimetric SAR Quantitative Measurement

doi: 10.11999/JEIT220475

LIU Yabo^{1
,
,},
ZHOU Xiaojie^{1, 2},
LU Min¹,
YU Zhongjun^{1, 2}

1.
Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100094, China
2.
School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, China

Received Date: 2022-04-19
Rev Recd Date: 2022-07-07

Available Online: 2022-07-11

Publish Date: 2023-05-10

Abstract

Abstract

Even though the internal and external SAR system calibration is very accurate, the accuracy of airborne fully polarimetric SAR measurement still changes to some extent under different flight conditions. In the condition of non-stationary and high frequency, the accuracy deteriorates seriously. In order to solve this problem, an error model of fully polarimetric SAR in non-stationary environment is proposed, and then the influence of the slight variation of trajectory between channels on the polarization phase imbalance degree in time-sharing transceiver system is analyzed. It is pointed out that the same motion error will aggravate the phase imbalance with the increase of the band. The corresponding processing method is proposed accordingly. Finally, the effectiveness of this method is verified by simulation and S-band SAR data. The effectiveness and stability of this method are also verified by several application demonstrations.
- Synthetic Aperture Radar(SAR),
- Quantitative measurement,
- Error analysis,
- Phase imbalance

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References(35)

References

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