Bistatic Forward-Looking SAR Motion Error Compensation Method Based on Keystone Transform and Modified Autofocus Back-Projection

Qing Yang; Deming Guo; Zhongyu Li; Junjie Wu; Yulin Huang; Haiguang Yang; Jianyu Yang

doi:10.1109/IGARSS.2019.8898219

Bistatic Forward-Looking SAR Motion Error Compensation Method Based on Keystone Transform and Modified Autofocus Back-Projection

Qing Yang
, Deming Guo
, Zhongyu Li
, Junjie Wu
, Yulin Huang
, Haiguang Yang
, Jianyu Yang

University of Electronic Science and Technology of China
Nanjing Research Institute of Electronics Technology

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

5 Scopus citations

Abstract

With appropriate geometry configurations, bistatic synthetic aperture radar (SAR) can break through the limitations of monostatic SAR on forward-looking imaging. Thanks to such a capability, bistatic forward-looking SAR (BFSAR) has extensive potential applications. In BFSAR, the compensation of the spatially variant motion errors is of great significance to get a well-focused image. In this paper, a motion compensation method based on keystone transform and modified autofocus back-projection is presented to deal with this problem. Keystone transform is applied to remove the spatial variation of range cell migration (RCM) and the first-order term of RCM errors simultaneously, prepares for the following modified autofocus back-projection, which can eliminate the high-order term of azimuth phase errors. Simulation results verify the validity and efficiency of the presented method.

Original language	English
Title of host publication	2019 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2019 - Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	827-830
Number of pages	4
ISBN (Electronic)	9781538691540
DOIs	https://doi.org/10.1109/IGARSS.2019.8898219
State	Published - Jul 2019
Externally published	Yes
Event	39th IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2019 - Yokohama, Japan Duration: 28 Jul 2019 → 2 Aug 2019

Publication series

Name	International Geoscience and Remote Sensing Symposium (IGARSS)

Conference

Conference	39th IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2019
Country/Territory	Japan
City	Yokohama
Period	28/07/19 → 2/08/19

Keywords

autofocus back-projection
bistatic forward-looking synthetic aperture radar
keystone transform
motion compensation

Access to Document

10.1109/IGARSS.2019.8898219

Cite this

Yang, Q., Guo, D., Li, Z., Wu, J., Huang, Y., Yang, H., & Yang, J. (2019). Bistatic Forward-Looking SAR Motion Error Compensation Method Based on Keystone Transform and Modified Autofocus Back-Projection. In 2019 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2019 - Proceedings (pp. 827-830). Article 8898219 (International Geoscience and Remote Sensing Symposium (IGARSS)). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/IGARSS.2019.8898219

Yang, Qing ; Guo, Deming ; Li, Zhongyu et al. / Bistatic Forward-Looking SAR Motion Error Compensation Method Based on Keystone Transform and Modified Autofocus Back-Projection. 2019 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2019 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2019. pp. 827-830 (International Geoscience and Remote Sensing Symposium (IGARSS)).

@inproceedings{862b5bcbe54441baba687e958d9de0ff,

title = "Bistatic Forward-Looking SAR Motion Error Compensation Method Based on Keystone Transform and Modified Autofocus Back-Projection",

abstract = "With appropriate geometry configurations, bistatic synthetic aperture radar (SAR) can break through the limitations of monostatic SAR on forward-looking imaging. Thanks to such a capability, bistatic forward-looking SAR (BFSAR) has extensive potential applications. In BFSAR, the compensation of the spatially variant motion errors is of great significance to get a well-focused image. In this paper, a motion compensation method based on keystone transform and modified autofocus back-projection is presented to deal with this problem. Keystone transform is applied to remove the spatial variation of range cell migration (RCM) and the first-order term of RCM errors simultaneously, prepares for the following modified autofocus back-projection, which can eliminate the high-order term of azimuth phase errors. Simulation results verify the validity and efficiency of the presented method.",

keywords = "autofocus back-projection, bistatic forward-looking synthetic aperture radar, keystone transform, motion compensation",

author = "Qing Yang and Deming Guo and Zhongyu Li and Junjie Wu and Yulin Huang and Haiguang Yang and Jianyu Yang",

note = "Publisher Copyright: {\textcopyright} 2019 IEEE.; 39th IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2019 ; Conference date: 28-07-2019 Through 02-08-2019",

year = "2019",

month = jul,

doi = "10.1109/IGARSS.2019.8898219",

language = "英语",

series = "International Geoscience and Remote Sensing Symposium (IGARSS)",

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Yang, Q, Guo, D, Li, Z, Wu, J, Huang, Y, Yang, H & Yang, J 2019, Bistatic Forward-Looking SAR Motion Error Compensation Method Based on Keystone Transform and Modified Autofocus Back-Projection. in 2019 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2019 - Proceedings., 8898219, International Geoscience and Remote Sensing Symposium (IGARSS), Institute of Electrical and Electronics Engineers Inc., pp. 827-830, 39th IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2019, Yokohama, Japan, 28/07/19. https://doi.org/10.1109/IGARSS.2019.8898219

Bistatic Forward-Looking SAR Motion Error Compensation Method Based on Keystone Transform and Modified Autofocus Back-Projection. / Yang, Qing; Guo, Deming; Li, Zhongyu et al.
2019 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2019 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2019. p. 827-830 8898219 (International Geoscience and Remote Sensing Symposium (IGARSS)).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Bistatic Forward-Looking SAR Motion Error Compensation Method Based on Keystone Transform and Modified Autofocus Back-Projection

AU - Yang, Qing

AU - Guo, Deming

AU - Li, Zhongyu

AU - Wu, Junjie

AU - Huang, Yulin

AU - Yang, Haiguang

AU - Yang, Jianyu

PY - 2019/7

Y1 - 2019/7

N2 - With appropriate geometry configurations, bistatic synthetic aperture radar (SAR) can break through the limitations of monostatic SAR on forward-looking imaging. Thanks to such a capability, bistatic forward-looking SAR (BFSAR) has extensive potential applications. In BFSAR, the compensation of the spatially variant motion errors is of great significance to get a well-focused image. In this paper, a motion compensation method based on keystone transform and modified autofocus back-projection is presented to deal with this problem. Keystone transform is applied to remove the spatial variation of range cell migration (RCM) and the first-order term of RCM errors simultaneously, prepares for the following modified autofocus back-projection, which can eliminate the high-order term of azimuth phase errors. Simulation results verify the validity and efficiency of the presented method.

AB - With appropriate geometry configurations, bistatic synthetic aperture radar (SAR) can break through the limitations of monostatic SAR on forward-looking imaging. Thanks to such a capability, bistatic forward-looking SAR (BFSAR) has extensive potential applications. In BFSAR, the compensation of the spatially variant motion errors is of great significance to get a well-focused image. In this paper, a motion compensation method based on keystone transform and modified autofocus back-projection is presented to deal with this problem. Keystone transform is applied to remove the spatial variation of range cell migration (RCM) and the first-order term of RCM errors simultaneously, prepares for the following modified autofocus back-projection, which can eliminate the high-order term of azimuth phase errors. Simulation results verify the validity and efficiency of the presented method.

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KW - bistatic forward-looking synthetic aperture radar

KW - keystone transform

KW - motion compensation

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ER -

Yang Q, Guo D, Li Z, Wu J, Huang Y, Yang H et al. Bistatic Forward-Looking SAR Motion Error Compensation Method Based on Keystone Transform and Modified Autofocus Back-Projection. In 2019 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2019 - Proceedings. Institute of Electrical and Electronics Engineers Inc. 2019. p. 827-830. 8898219. (International Geoscience and Remote Sensing Symposium (IGARSS)). doi: 10.1109/IGARSS.2019.8898219

Bistatic Forward-Looking SAR Motion Error Compensation Method Based on Keystone Transform and Modified Autofocus Back-Projection

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Keywords

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