A Channel Phase Error Compensation Method for Space Borne Array SAR Based on Antenna Pattern and Doppler Correlation Coefficient

Jie PAN; Shuai WANG; Daojing LI; Xiaochun LU

doi:10.11999/JEIT181061

Volume 41 Issue 7

Jul. 2019

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Article Navigation > Journal of Electronics & Information Technology > 2019 > 41(7): 1758-1765

Jie PAN, Shuai WANG, Daojing LI, Xiaochun LU. A Channel Phase Error Compensation Method for Space Borne Array SAR Based on Antenna Pattern and Doppler Correlation Coefficient[J]. Journal of Electronics & Information Technology, 2019, 41(7): 1758-1765. doi: 10.11999/JEIT181061

Citation:

Jie PAN, Shuai WANG, Daojing LI, Xiaochun LU. A Channel Phase Error Compensation Method for Space Borne Array SAR Based on Antenna Pattern and Doppler Correlation Coefficient[J]. Journal of Electronics & Information Technology, 2019, 41(7): 1758-1765. doi: 10.11999/JEIT181061

Citation:

Jie PAN, Shuai WANG, Daojing LI, Xiaochun LU. A Channel Phase Error Compensation Method for Space Borne Array SAR Based on Antenna Pattern and Doppler Correlation Coefficient[J]. Journal of Electronics & Information Technology, 2019, 41(7): 1758-1765. doi: 10.11999/JEIT181061

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A Channel Phase Error Compensation Method for Space Borne Array SAR Based on Antenna Pattern and Doppler Correlation Coefficient

doi: 10.11999/JEIT181061

Jie PAN^{1, 3
,
,},
Shuai WANG^{1, 2, 3},
Daojing LI^{1, 2},
Xiaochun LU⁴

1.
Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China
2.
National Key Laboratory of Microwave Imaging Technology, Beijing 100190, China
3.
University of Chinese Academy of Sciences, Beijing 100049, China
4.
National Time Service Center, Chinese Academy of Sciences, Xi’an 710600, China

Received Date: 2018-11-20
Rev Recd Date: 2019-04-20

Available Online: 2019-05-20

Publish Date: 2019-07-01

Abstract

Abstract

With the development of earth remote sensing technology, SAR system is required to obtain high resolution and wide swath simultaneously, the space borne array SAR combined with Digital Beam Forming (DBF) technology provides a good solution to solve the problem. However, the phase error between channels will degrade the quality of DBF, and the traditional compensation methods suffer from large error or limite application. In this paper, a compensation method based on antenna pattern and Doppler correlation coefficient is proposed, using the antenna pattern and meanwhile utilizing the Doppler correlation coefficient. By minimizing the combined cost function, the phase error between channels are estimated. Simulation results using RADAR-SAT data validate the effectiveness of the proposed method.
- SAR,
- Multi-channel,
- Channel phase error,
- Antenna pattern,
- Doppler correlation coefficient

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References(16)

References

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