Spaceborne Interrupted Frequency Modulation Continuous Wave SAR Imaging Based on Accumulated Aperture Interpolation Technique

MIN Lin; LIU Xiangqian; LI Ning

doi:10.11999/JEIT210140

Volume 44 Issue 7

Jul. 2022

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Article Navigation > Journal of Electronics & Information Technology > 2022 > 44(7): 2461-2468

MIN Lin, LIU Xiangqian, LI Ning. Spaceborne Interrupted Frequency Modulation Continuous Wave SAR Imaging Based on Accumulated Aperture Interpolation Technique[J]. Journal of Electronics & Information Technology, 2022, 44(7): 2461-2468. doi: 10.11999/JEIT210140

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MIN Lin, LIU Xiangqian, LI Ning. Spaceborne Interrupted Frequency Modulation Continuous Wave SAR Imaging Based on Accumulated Aperture Interpolation Technique[J]. Journal of Electronics & Information Technology, 2022, 44(7): 2461-2468. doi: 10.11999/JEIT210140

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Spaceborne Interrupted Frequency Modulation Continuous Wave SAR Imaging Based on Accumulated Aperture Interpolation Technique

doi: 10.11999/JEIT210140

MIN Lin^{1, 2, 3},
LIU Xiangqian^{1, 2, 4},
LI Ning^{1, 2, 4
,
,}

1.
Henan Engineering Research Center of Intelligent Technology and Application, Henan University, Kaifeng 475004, China
2.
Henan Key Laboratory of Big Data Analysis and Processing, Henan University, Kaifeng 475004, China
3.
Network Information Center Office, Henan University, Kaifeng 475004, China
4.
College of Computer and Information Engineering, Henan University, Kaifeng 475004, China

Funds: The National Natural Science Foundation of China (61871175), The College Key Research Project of Henan Province (19A420005, 21A520004), The Plan of Science and Technology of Henan Province (192102210082, 212102210093, 212102210101), The Youth Talent Lifting Project of Henan Province (2019HYTP006)

Received Date: 2021-02-07
Rev Recd Date: 2021-03-26

Available Online: 2021-04-15

Publish Date: 2022-07-25

Abstract

Abstract

The Intermittent Frequency Modulation Continuous Wave (IFMCW) Synthetic Aperture Radar (SAR) mode solves the problem that the spaceborne Frequency Modulation Continuous Wave (FMCW) SAR must be bistatic by alternately transmitting and receiving signals in different time intervals. However, in this mode, the radar antenna will work intermittently in the transmitting and receiving state, resulting in periodical gaps in the echo data. In order to solve the above problems, a Missing-data Iterative Adaptive imaging processing Approach (MIAA) is proposed, based on Accumulated Aperture Interpolation Technique (AAIT) to recover the data gaps. Experimental results show that the proposed method can effectively recover missing data, thus improving significantly imaging quality and suppressing greatly the artifacts energy caused by the periodical data gaps.
- Synthetic Aperture Radar (SAR),
- Interrupted Frequency Modulation Continuous Wave (IFMCW),
- Artifacts,
- Iterative Adaptive Approach (IAA)

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References(20)

References

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