Multi-channel Synthetic Aperture Radar-Ground Moving Target Indication High-accuracy Focusing and Positioning Using Instantaneous Interferometry

Zhang Sheng; Sun Guang-cai; Li Xue-shi; Xing Meng-dao

doi:10.11999/JEIT141245

Volume 37 Issue 7

Jul. 2015

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Article Navigation > Journal of Electronics & Information Technology > 2015 > 37(7): 1729-1735

Zhang Sheng, Sun Guang-cai, Li Xue-shi, Xing Meng-dao. Multi-channel Synthetic Aperture Radar-Ground Moving Target Indication High-accuracy Focusing and Positioning Using Instantaneous Interferometry[J]. Journal of Electronics & Information Technology, 2015, 37(7): 1729-1735. doi: 10.11999/JEIT141245

Citation:

Zhang Sheng, Sun Guang-cai, Li Xue-shi, Xing Meng-dao. Multi-channel Synthetic Aperture Radar-Ground Moving Target Indication High-accuracy Focusing and Positioning Using Instantaneous Interferometry[J]. Journal of Electronics & Information Technology, 2015, 37(7): 1729-1735. doi: 10.11999/JEIT141245

Citation:

Zhang Sheng, Sun Guang-cai, Li Xue-shi, Xing Meng-dao. Multi-channel Synthetic Aperture Radar-Ground Moving Target Indication High-accuracy Focusing and Positioning Using Instantaneous Interferometry[J]. Journal of Electronics & Information Technology, 2015, 37(7): 1729-1735. doi: 10.11999/JEIT141245

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Multi-channel Synthetic Aperture Radar-Ground Moving Target Indication High-accuracy Focusing and Positioning Using Instantaneous Interferometry

doi: 10.11999/JEIT141245

Received Date: 2014-09-23
Rev Recd Date: 2015-01-15
Publish Date: 2015-07-19

Abstract

Abstract

In Synthetic Aperture Radar-Ground Moving Target Indication (SAR-GMTI) processing, it is difficult to solve the Range Cell Migration (RCM) and azimuth defocusing problems simultaneously since the motion parameters of each moving target is different, which makes the high-accuracy focusing of moving target unattainable, thus affects the accuracy of positioning. A high-accuracy focusing and positioning of moving-targets method based on instantaneous interferometry is proposed in this paper. Firstly, single moving target can be extracted. After that, by iteratively extracting the high-accuracy Instantaneous Interferometric Phase (IIP) of moving target and solving the across-track velocity ambiguity, accurate across-track velocity can be obtained and utilized in RCM removing. After all, high-accuracy focusing of moving target can be achieved, which improves the accuracy of positioning. The processing results of measured data illustrate the effectiveness of the proposed method in this paper.
- Synthetic Aperture Radar (SAR),
- Ground Moving Target Indication (GMTI),
- Instantaneous interferometry,
- Across-track velocity ambiguity

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References(24)

References

Charles E L and Alan A T. The moving object detection experiment on RADARSAT-2[J]. Canadian Journal of Remote Sensing, 2004, 20(3): 355-368.

Kirscht M. Detection and imaging of arbitrarily moving targets with single-channel SAR[J]. IEE Proceedings- Radar, Sonar and Navigation, 2003, 150(1): 7-11.

Ouchi K. On the multilook images of moving targets by synthetic aperture radars[J]. IEEE Transactions on Antennas and Propagation, 1985, 33(8): 823-827.

Maori D C and Sikaneta I. A generalization of DPCA processing for multichannel SAR/GMTI radars[J]. IEEE Transactions on Geoscience and Remote Sensing, 2013, 51(1): 560-572.

Zhu S Q, Liao G S, Qu Y, et al.. Performance improvement for monostatic clutter rejection using space-time-range three-dimensional processing[J]. Digital Signal Processing, 2011, 21(2): 248-261.

钱江, 苏军海, 李凉海, 等. 利用KWT 进行动目标成像的三通道SAR-GMTI 快速目标运动参数估计[J]. 电子与信息学报, 2010, 32(7): 1661-1667.

Qian Jiang, Su Jun-hai, Li Liang-hai, et al.. Tri-channel SAR-GMTI high-speed target imaging and motion parameter estimation using KWT[J]. Journal of Electronics Information Technology, 2010, 32(7): 1661-1667.

吕孝雷. 机载多通道SAR-GMTI处理方法的研究[D]. [博士论文], 西安电子科技大学, 2008.

L Xiao-lei. Study on new methods for airborne multichannel SAR-GMTI processing[D]. [Ph.D. dissertation], Xidian University, 2008.

Yang Jian, Liu Chang, and Wang Yan-fei. Detection and imaging of ground moving targets with real SAR data[J]. IEEE Transactions on Geoscience and Remote Sensing, 2015, 53(2): 920-932.

Li Gang, Xia Xiang-gen, and Peng Ying-ning. Doppler keystone transform: an approach suitable for parallel implementation of SAR moving target imaging[J]. IEEE Geoscience and Remote Sensing Letters, 2008, 5(4): 573-577.

钱江. SAR-GMTI处理方法研究[D]. [博士论文], 西安电子科技大学, 2011.

Qian Jiang. Study on methods for SAR-GMTI[D]. [Ph.D. dissertation], Xidian University, 2001.

杨垒. 多通道SAR-GMTI方法研究[D]. [博士论文], 西安电子科技大学, 2009.

Yang Lei. Study of GMTI methods for multichannel SAR- GMTI system[D]. [Ph.D. dissertation], Xidian University, 2009.

Zhu Sheng-qi, Liao Gui-sheng, Tao Hai-hong, et al.. Estimating ambiguity-free motion parameters of ground moving targets from dual-channel SAR sensors[J]. Journal of Selected Tops in Applied Earth Observation and Remote Sensing, 2014, 7(8): 3328-3349.

王肖洋, 高贵, 周石琳, 等. 一种基于双通道DPCA的SAR- GMTI杂波抑制方法[J]. 雷达学报, 2014, 3(2): 242-248.

Wang Xiao-yang, Gao Gui, Zhou Shi-lin, et al.. A clutter suppression approach for SAR-GMTI based on dual-channel DPCA[J]. Journal of Radars, 2014, 3(2): 242-248.

Sun Guang-cai, Xing Meng-dao, Xia Xiang-gen, et al.. Robust ground moving-target imaging using deramp- keystone processing[J]. IEEE Transactions on Geoscience and Remote Sensing, 2013, 51(2): 966-982.

吕孝雷, 邢孟道, 潘月娥, 等. 基于联合像素干涉统计特性的三通道动目标检测方法[J]. 电子学报, 2008, 36(12): 2319-2323.

L Xiao-lei, Xing Meng-dao, Pan Yue-e, et al.. Detection of three-channel ground moving targets using statistical properties of joint pixel pairs interferograms[J]. Acta Electronica Sinica, 2008, 36(12): 2319-2323.

魏中平. 基于CFAR 的SAR目标检测[J]. 电子科技, 2013, 26(3): 26-29.

Wei Zhong-ping. Detection of SAR target based on CFAR[J]. Electronic Science Technology, 2013, 26(3): 26-29.

Zhang Xue-pan, Liao Gui-sheng, Zhu Sheng-qi, et al.. Geometry-information-aided efficient motion parameter estimation for moving-target imaging and location[J]. IEEE Geoscience and Remote Sensing Letters, 2015, 12(1): 155-159.

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