天线斜置情况下三通道SAR-GMTI技术研究

李亚超; 李晓明; 邢孟道; 保铮

doi:10.3724/SP.J.1146.2007.01771

天线斜置情况下三通道SAR-GMTI技术研究

doi: 10.3724/SP.J.1146.2007.01771

基金项目:

国家自然科学青年基金(60502044)和新世纪优秀人才支持计划项目(66ZY0706)资助课题

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出版历程
- 收稿日期: 2007-11-12
- 修回日期: 2008-07-08
- 刊出日期: 2009-03-19

Study on the Three Channels SAR-GMTI System with the Slant-Placed Antennae

摘要

摘要: 该文提出了一种新的基于DPCA(相位中心偏置天线)技术的动目标检测体制，即天线沿载机飞行方向按一定倾斜角度放置。利用等效相位中心原理建立了天线斜置情况下三通道运动目标回波信号模型，给出了天线倾斜角对动目标检测、最小可检测速度和盲速的影响。通过改进的DPCA技术实现运动目标的检测、测速和定位。最后，仿真数据验证了该新体制和改进DPCA技术对运动目标检测的可行性。
- SAR;运动目标检测;相位中心偏置天线;最小可检测速度
Abstract: This paper proposes a new system based on DPCA technology for the detection and position of moving target, namely three antennae are placed at a slant angle along airplane flying detection. The echo model of moving target is established based on three channels with the slant-placed antennae in terms of the equivalent phase center principle. The analysis of the detection of moving target, MVD and blind velocity relative to the slant-placed antenna is given and the improved DPCA technology is presented for the detection, velocity meansure and position. Finally, the simulated data confirm this new system and the improved DPCA technology.

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Damini A, Balaji B, Haslam G, and Goulding M. X-bandexperimental airborne radar-Phase II: synthetic apertureradar and ground moving target indication [J].IEEProc.-Radar Sonar Navig.2006, 153(2):144-151[2]Sharma J J, Gierull C H, and Collins M J. The influence oftarget acceleration on velocity estimation in dual-channelSAR-GMTI [J]. IEEE Trans. on GRS, 2006, 44(1): 134-147.[3]Bamler R and Hartl P. Synthetic aperture radarinterferometry [J]. Inverse Problem, 1998, 14(3): R1-R54.[4]Rosen P A, Hensley S, Joughin I R, Li F K, Madsen S N,Rodriguez E, and Goldstein R M. Synthetic aperture radarinterferometry [C][J].Proc. IEEE.2000, 88(3):333-382[5]孙娜, 周荫清, 李景文. 基于DPCA 技术的星载SAR/GMTI处理方法[J].电子与信息学报.2005, 27(10):1564-1568浏览[6]张英, 李景文. 基于DPCA的机载SAR-MTI 系统误差分析及补偿方法研究[J]. 电子学报, 2003, 31(12): 2031-2034.Zhang Ying and Li Jing-wen. System error analysis andcalibration method for airborne SAR-MTI system based onDPCA Technique [J]. Acta Electronica Sinica, 2003, 31(12):2031-2034.[7]王永良, 陈建文, 吴志文. 现代DPCA 技术研究[J]. 电子学报,2000, 28(6): 118-121.Wang Yong-liang, Chen Jian-wen, and Wu Zhi-wen. Researchon modern DPCA techniques [J]. Acta Electronica Sinica,2000, 28(6): 118-121.[8]郑明洁. 合成孔径雷达动目标检测和成像研究[D]. [博士论文],北京: 中国科学院电子研究所, 2003, 6.Zheng Ming-jie. Study on SAR-GMTI and imaging[D]. [Ph.D.dissertation], Beijing: Institute of Electronics of ChineseAcademy of Sciences, 2003, 6.[9]王琦. 基于频域分析和DPCA 的SAR 运动目标检测方法研究[D]. [博士论文], 北京: 中国科学院电子研究所, 2005, 9.Wang Qi. SAR-GMTI based on frequency analysis andDPCA[D]. [Ph.D. dissertation], Beijing: Institute ofElectronics of Chinese Academy of Sciences, 2005, 9.[10]李杰, 向敬成, 黄顺吉. 合成孔径雷达慢运动目标成像处理的研究[J]. 电子科技大学学报, 1995, 24(2): 119-125.Li Jie, Xiang Jing-cheng, and Huang Shun-ji. On study ofslowly moving target imaging using SAR [J]. Journal ofUniversity of Electronic Science and Technology of China,1995, 24(2): 119-125.[11]Qu Changwen, He You, Su Feng, and Huang Yong. SARmoving targets detection based on the chirp-fouriertra-nsform [C]. International Radar Conference, Yantai,China, IEEE, 9-12 May 2005: 802-805.[12]邢孟道, 李真芳, 保铮, 王彤. 分布式小卫星雷达空时频成像方法研究[J]. 宇航学报, 2005, 26(增刊): 70-82.Xing Meng-dao, Li Zhen-fang, Bao Zheng, and Wang Tong.Study of distributed microsatellites radar space-timefrequencyimaging method [J]. Journal of Astronautics, 2005,26(Supplement): 70-82.[13]李真芳. 分布式小卫星SAR-InSAR-GMTI 的处理方法[D].[博士论文], 西安: 西安电子科技大学, 2006, 4.Ling Zhen-fang. Approaches to SAR-InSAR-GMTI fordistributed small satellite SAR systems [D]. [Ph.D.dissertation], Xian: Xidian University, 2006, 4.[14]Hovanessian S A, Jocic L B, and Lopez J M. Spaceborneradar design equations and concepts [C]. Proc. IEEE, 1997,1(1): 125-136.

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