Research on SAR/GMTI Using-Beams Based on Signal Subspace Processing

Shen  Ming-wei; Zhu  Dai-yin; Zhu  Zhao-da; Ye  Shao-hua

doi:10.3724/SP.J.1146.2005.00269

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Shen Ming-wei, Zhu Dai-yin, Zhu Zhao-da, Ye Shao-hua. Research on SAR/GMTI Using-Beams Based on Signal Subspace Processing[J]. Journal of Electronics & Information Technology, 2007, 29(1): 19-22. doi: 10.3724/SP.J.1146.2005.00269

Citation:

Shen Ming-wei, Zhu Dai-yin, Zhu Zhao-da, Ye Shao-hua. Research on SAR/GMTI Using-Beams Based on Signal Subspace Processing[J]. Journal of Electronics & Information Technology, 2007, 29(1): 19-22. doi: 10.3724/SP.J.1146.2005.00269

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Research on SAR/GMTI Using-Beams Based on Signal Subspace Processing

doi: 10.3724/SP.J.1146.2005.00269

Received Date: 2005-03-11
Rev Recd Date: 2005-09-09
Publish Date: 2007-01-19

Abstract

Abstract

In this paper, a GMTI method for -beams is investigated, which is achieved by incorporating the along-track interferometric SAR/ GMTI technique with signal subspace processing. The principle of along-track interferometric SAR/ GMTI is analyzed, and the spatial cancellation matrix used to preprocess the image is derived. In practice, because of the channel errors (gain and phase error), a two-dimensional signal subspace processing method is used, which can blindly calibrate the sensors error and achieve the moving targets detection. The simulation results are presented to demonstrate the validity of this scheme.

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References(1)

References

[1] Tobin M. Real time simulations SAR/GMTI in a tactical airborne environment. Proc. of EUSAR, Koenigswinter, Germany, 1996: 63-66. [2] 朱岱寅, 朱兆达. 机载干涉SAR/ISAR对地慢速目标成像研究.电子与信息学报, 2003, 25(5): 586-590. Zhu Dai-yin and Zhu Zhao-da. Studies of ground slow-moving target imaging by airborne interferometric. Journal of Electronics Information Technology, 2003, 25(5): 586-590. [3] 叶少华. 机载SAR原始成像处理和干涉SAR/GMTI技术研究.[博士论文], 南京: 南京航空航天大学, 2002. [4] 朱岱寅, 朱兆达. 机载SAR斜视区域成像研究.电子学报, 2002, 30(9): 1387-1389. Zhu Dai-yin and Zhu Zhao-da. Studies on airborne squint-looking SAR patch-mapping. Acta Electronica Sinica, 2002, 30(9): 1387-1389. [5] Soumekh M. Moving targets detection and imaging using an X band-track monopulse SAR. IEEE Trans. on AES, 2002, 38(1): 315-333. [6] Soumekh M. Signal subspace fusion of uncalibrated sensors with application in SAR and diagnostic medicine[J].IEEE Trans. on Image Processing.1999, 8(1):127-137

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