New Back-filtering PFA Imaging Algorithm and Distortion Correction Method for Missile-borne Bistatic SAR with Curved Track

Huan DENG; Yachao LI; Haiwen MEI; Yinghui QUAN; Mengdao XING

doi:10.11999/JEIT170994

Volume 40 Issue 11

Oct. 2018

Turn off MathJax

Article Contents

Article Navigation > Journal of Electronics & Information Technology > 2018 > 40(11): 2638-2644

Huan DENG, Yachao LI, Haiwen MEI, Yinghui QUAN, Mengdao XING. New Back-filtering PFA Imaging Algorithm and Distortion Correction Method for Missile-borne Bistatic SAR with Curved Track[J]. Journal of Electronics & Information Technology, 2018, 40(11): 2638-2644. doi: 10.11999/JEIT170994

Citation:

Huan DENG, Yachao LI, Haiwen MEI, Yinghui QUAN, Mengdao XING. New Back-filtering PFA Imaging Algorithm and Distortion Correction Method for Missile-borne Bistatic SAR with Curved Track[J]. Journal of Electronics & Information Technology, 2018, 40(11): 2638-2644. doi: 10.11999/JEIT170994

Citation:

Huan DENG, Yachao LI, Haiwen MEI, Yinghui QUAN, Mengdao XING. New Back-filtering PFA Imaging Algorithm and Distortion Correction Method for Missile-borne Bistatic SAR with Curved Track[J]. Journal of Electronics & Information Technology, 2018, 40(11): 2638-2644. doi: 10.11999/JEIT170994

PDF( 2131 KB)

New Back-filtering PFA Imaging Algorithm and Distortion Correction Method for Missile-borne Bistatic SAR with Curved Track

doi: 10.11999/JEIT170994

National Key Laboratory of Radar Signal Processing, Xidian University, Xi’an 710071, China

Funds: The National Natural Science Foundation of China (61001211, 61303035, 61471283)

Received Date: 2017-10-24
Rev Recd Date: 2018-08-13

Available Online: 2018-08-20

Publish Date: 2018-11-01

Abstract

Abstract

The traditional bistatic equivalent range model has low accuracy and make the traditional Polar Format Algorithm (PFA) are inapplicable in missile-borne bistatic Synthetic Aperture Radar (SAR) imaging with curved track due to the existing of three-axis velocity and acceleration. In addition, due to the existing of space-variant motion error introduced by acceleration, the traditional 2-D sub-block compensation method will cause the discontinuities between the image sub-blocks, thus affecting the subsequent image matching application. In view of these problems, this paper proposes a Back-Filtering PFA algorithm (BFPFA) which is based on the Improved Generalized Bistatic Equivalent Range Model (IGBERM). Constructing the combined compensating filter of space-variant phase error and geometric distortion, as well as reverse mapping interpolation, can realize the combined compensation of motion error, wavefront bending and geometric distortion in the process of oblique conversion, and obtain the SAR distance map without distortion, which is more conducive to the subsequent image matching applications. Finally, the simulations validate the effectiveness of the proposed algorithm.
- Missile-borne bistatic SAR,
- Equivalent slanting distance model,
- Bistatic Polar Format Algorithm (PFA),
- Space-variant motion error,
- Distortion correction

FullText(HTML)

References(16)

References

PU Wei, LI Wenchao, and LÜ Youxin, et al. An extended omega-K algorithm with integrated motion compensation for bistatic forward-looking SAR[C]. IEEE Radar Conference, Arlington, USA, 2015: 1291–1295.

孟自强, 李亚超, 邢孟道, 等. 基于斜距等效的弹载双基前视SAR相位空变校正方法[J]. 电子与信息学报, 2016, 38(3): 613–621 doi: 10.11999/JEIT150782

MENG Ziqiang, LI Yachao, XING Mengdao, et al. Phase space-variance correction method for missile-borne bistatic forward-looking SAR based on equivalent range equation[J]. Journal of Electronics&Information Technology, 2016, 38(3): 613–621 doi: 10.11999/JEIT150782

LI Zhenyu, XING Mengdao, LIANG Yi, et al. A frequency-domain imaging algorithm for highly squinted SAR mounted on maneuvering platforms with nonlinear trajectory[J]. IEEE Transactions on Geoscience&Remote Sensing, 2016, 54(7): 4023–4038 doi: 10.1109/TGRS.2016.2535391

ZHANG Lei, QIAO Zhijun, XING Mengdao, et al. A robust motion compensation approach for UAV SAR imagery[J]. IEEE Transactions on Geoscience&Remote Sensing, 2012, 50(8): 3202–3218 doi: 10.1109/TGRS.2011.2180392

ZENG Letian, LIANG Yi, XING Mengdao, et al. A novel motion compensation approach for airborne spotlight SAR of high-resolution and high-squint mode[J]. IEEE Geoscience&Remote Sensing Letters, 2016, 13(3): 429–433 doi: 10.1109/LGRS.2016.2517099

丁金闪, OTMAR L, HOLGER N, 等. 双基SAR成像的点目标解析频谱研究[J]. 电子与信息学报, 2009, 31(4): 763–767

DING Jinshan, OTMAR L, HOLGER N, et al. Study of point target spectrum for bistatic SAR imaging[J]. Journal of Electronics&Information Technology, 2009, 31(4): 763–767

孟自强, 李亚超, 邢孟道, 等. 弹载双基前视SAR扩展场景成像算法设计[J]. 西安电子科技大学学报(自然科学版), 2016, 43(3): 31–37 doi: 10.3969/j.issn.1001-2400.2016.03.006

MENG Ziqiang, LI Yachao , XING Mengdao, et al. Imaging method for the extended scene of missile-borne bistatic forward-looking SAR[J]. Journal of Xidian University, 2016, 43(3): 31–37 doi: 10.3969/j.issn.1001-2400.2016.03.006

CHEN Si, YUAN Yue, ZHANG Shuning, et al. A new imaging algorithm for forward-looking missile-borne bistatic SAR[J]. IEEE Journal of Selected Topics in Applied Earth Observations&Remote Sensing, 2016, 9(4): 1543–1552 doi: 10.1109/JSTARS.2015.2507260

ZENG Hongcheng, WANG Pengbo, CHEN Jie, et al. A novel general imaging formation algorithm for GNSS-based bistatic SAR[J]. Sensors, 2016, 16(3): 294–308 doi: 10.3390/s16030294

LI Dong, WANG Wei, LIU Hongqing, et al. Focusing highly squinted azimuth variant bistatic SAR[J]. IEEE Transactions on Aerospace and Electronic Systems, 2017, 52(6): 2715–2730 doi: 10.1109/TAES.2016.150491

LI Yanping, ZHANG Zhenhua, XING Mengdao, et al. Bistatic spotlight SAR processing using the frequency-scaling algorithm[J]. IEEE Geoscience&Remote Sensing Letters, 2008, 5(1): 48–52 doi: 10.1109/LGRS.2007.907306

WANG R, LOFFELD O, NIES H, et al. Focusing spaceborne/airborne hybrid bistatic SAR data using wavenumber-domain algorithm[J]. IEEE Transactions on Geoscience&Remote Sensing, 2009, 47(7): 2275–2283 doi: 10.1109/TGRS.2008.2010852

LIU Baochang, WANG Tong, WU Qisong, et al. Bistatic SAR data focusing using an omega-K algorithm based on method of series reversion[J]. IEEE Transactions on Geoscience&Remote Sensing, 2009, 47(8): 2899–2912 doi: 10.1109/TGRS.2009.2017522

RIGLING B D and MOSES R L. Polar format algorithm for bistatic SAR[J]. IEEE Transactions on Aerospace Electronic Systems, 2004, 40(4): 1147–1159 doi: 10.1109/TAES.2004.1386870

WANG Xin, ZHU Daiyin, MAO Xinhua, et al. Space-variant filtering for wavefront curvature correction in polar formatted bistatic SAR image[J]. IEEE Transactions on Aerospace and Electronic Systems, 2012, 48(2): 940–950 doi: 10.1109/TAES.2012.6178040

唐世阳. 曲线运动轨迹SAR成像方法研究[D]. [博士论文], 西安电子科技大学, 2016: 93–120.

TANG Shiyang. Study on imaging methods for SAR on curved-path platforms[D]. [Ph.D. dissertation], Xidian University, 2016: 93–120.

Relative Articles

Supplements(0)

Cited By

Proportional views