L-band Airborne Repeat-pass Interferometric SAR System and Its Experimental Study

LU Jiaguo; TAO Li; ZHONG Xuelian; ZHANG Jiajia; SHEN Mingxing; LIU Zhikun

doi:10.12000/JR19078

Volume 8 Issue 6

Dec. 2019

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LU Jiaguo, TAO Li, ZHONG Xuelian, et al. The L-band airborne repeat-pass interferometric SAR system and its experimental study[J]. Journal of Radars, 2019, 8(6): 804–819. doi: 10.12000/JR19078

Citation:

LU Jiaguo, TAO Li, ZHONG Xuelian, et al. The L-band airborne repeat-pass interferometric SAR system and its experimental study[J]. Journal of Radars, 2019, 8(6): 804–819. doi: 10.12000/JR19078

LU Jiaguo, TAO Li, ZHONG Xuelian, et al. The L-band airborne repeat-pass interferometric SAR system and its experimental study[J]. Journal of Radars, 2019, 8(6): 804–819. doi: 10.12000/JR19078

Citation:

LU Jiaguo, TAO Li, ZHONG Xuelian, et al. The L-band airborne repeat-pass interferometric SAR system and its experimental study[J]. Journal of Radars, 2019, 8(6): 804–819. doi: 10.12000/JR19078

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L-band Airborne Repeat-pass Interferometric SAR System and Its Experimental Study

DOI: 10.12000/JR19078

China Electronics Technology Group Corporation No.38 Research Institute, Hefei 230088, China

Funds: The Special Foundation for International Cooperation of the Ministry of Science and Technology of China (2015DFA10270)

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Corresponding author: ZHONG Xuelian, sherryzxl@163.com
Received Date: 2019-09-02
Rev Recd Date: 2019-11-19

Available Online: 2019-12-20

Publish Date: 2019-12-01

Abstract

Abstract

This paper describes the L-band airborne Synthetic Aperture Radar (SAR) system and an experimental study of repeat-pass SAR interferometry. The discussions mainly focus on the internal calibration method, the imaging method based on Differential Global Positioning System/Inertial Measurement Unit (DGPS/IMU) data, Residual Motion Error (RME) estimation and compensation, and the Digital Elevation Model (DEM) inversion method with Interferometric SAR (InSAR). Two typical test areas were chosen from the acquired SAR data for detailed analyses. The DEMs in these two areas were inversed with repeat-pass InSAR, and comparisons with the measured ground points show errors in these two areas with a standard deviation 3.40 m and 2.85 m, respectively. This demonstrates the good performance of this L-band repeat-pass interferometric SAR system. These results have important significance for the design of airborne repeat-pass InSAR systems and typical terrain mapping. When the flight tracks are under good control, this L-band SAR system is applicable in the fields of differential InSAR, polarimetric InSAR, and tomographic SAR.
- Repeat-pass SAR interferometry,
- Residual motion error,
- L-band,
- Airborne SAR

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References(32)

References

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