全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...
电子学报  2014 

一种波束域的高速空中动目标检测及参数估计方法

DOI: 10.3969/j.issn.0372-2112.2014.01.003, PP. 14-19

Keywords: 机载雷达,空时自适应处理,动目标检测,Keystone变换,压缩感知

Full-Text   Cite this paper   Add to My Lib

Abstract:

Keystone变换所需的插值运算存在计算量大的问题,尤其是用于空时自适应处理(Space-TimeAdaptiveProcessing,STAP)时需要对每个阵元接收的数据分别进行Keystone变换,给工程实现带来了困难.为了解决这一问题,提出了一种在波束域进行Keystone变换校正目标距离走动的新方法,该方法将传统的对每个阵元数据的Keystone变换转换为在波束域进行Keystone变换,从而将N个阵元对应的N次Keystone变换转换为只在主波束内进行一次Keystone变换,这样做使算法的主要运算量降低为原来的1/N.然后将压缩感知(CompressedSensing,CS)理论用于空时自适应处理的目标参数估计,取得了良好的估计性能.最后通过仿真实验验证了本文方法的有效性.

References

[1]  Perry R P,Dipietro R C,Fante R L.SAR imaging of moving targets[J].IEEE Transactions on Aerospace and Electronics Systems,1999,35(1):188-200.
[2]  Lü Xiao-lei,Xing Meng-dao,et al.ISAR imaging of maneuvering targets based on the range centroid Doppler technique[J].IEEE Transactions on Image Processing,2010,19(1):141-153.
[3]  Zhu Dai-yin,Mao Xin-hua,Li Yong,et al.Far-field limit of PFA for SAR moving target imaging[J].IEEE Transactions on Aerospace and Electronic Systems,2010,46(2):917-929.
[4]  Sun Guang-cai,Guo Rui,et al.Comparison of several methods for high speed detection target with narrow bandwidth [A].Proceedings of the 2nd Asian-Pacific Conference on Synthetic Aperture Radar [C].Xi''an,China:[s.n.],2009.767-770.
[5]  苏军海,等.宽带机动目标检测[J].电子与信息学报,2009,31(6):1283-1287. Su Jun-hai,et al.Wideband radar detection for maneuvering target[J].Journal of Electronics and Information Technology,2009,31(6):1283-1287.(in Chinese)
[6]  Zhang S,Zeng T,Long T,et al.Dim target detection based on keystone transformation [A].Proceedings of IEEE 2005 International Radar Conference [C].USA:IEEE,2005.889-894.
[7]  Wu Zhao-ping,He Xue-hui,Su Tao.Coherent integration detection of multiple high speed targets with range migration and Doppler spread [A].Proceedings of 2009 IET International Radar Conference [C].Guillin,China:[s.n.],2009.1-5.
[8]  Su J,Xing M,Wang G,et al.High-speed multi-target detection with narrowband radar[J].IET Radar,Sonar & Navigation,2010,4(4):595-603.
[9]  吴仁彪,贾琼琼,李海.机载雷达高速空中微弱动目标检测新方法[J].电子与信息学报,2011,33(6):1459-1463. Wu Ren-biao,Jia Qiong-qiong,Li Hai.Detection of fast moving dim targets on airborne radar via STAP[J].Journal of Electronics & Information Technology,2011,33(6):1459-1463.(in Chinese)
[10]  Klemm R K.Principles of Space-Time Adaptive Processing[M].London:The Institution of Electrical Engineers,2002.87-100.
[11]  吴仁彪.机载相控阵雷达空时二维自适应滤波的理论与实现 [D].西安电子科技大学,1993.
[12]  Brennan L E,Reed I S.Theory of adaptive radar[J].IEEE Transaction on Aerospace Electron System,1973,9(2):237-252.
[13]  保铮,廖桂生,等.相控阵机载雷达杂波抑制的时-空二维自适应滤波[J].电子学报,1993,2(1):1-7. Bao Zheng,Liao Gui-sheng,et al.2-D temporal-spatial adaptive clutter suppression for phased array airborne radars[J].Acta Electronica Sinica,1993,2(1):1-7.(in Chinese)
[14]  张顺生,曾涛,邢孟道.基于Keystone变换的微弱目标检测[J].电子学报,2005,33(9):1675-1678. Zhang Shun-sheng,Zeng Tao,Xing Meng-dao.Weak target detection based on keystone transform[J].Acta Electronica Sinica,2005,33(9):1675-1678.(in Chinese)
[15]  余吉,许稼,等.基于Keystone变换的改进雷达目标长时间积累[J].雷达科学与技术,2008,6(11):454-458. Yu Ji,Xu Jia,et al.An improved keystone-transform based method for long-time coherent integration of radar target[J].Radar Science and Technology,2008,6(11):454-458.(in Chinese)
[16]  Zhou Zhi,Su Zhi-gang,Wu Ren-biao.Method for detecting ground moving target with range migration [A].Proceedings of the IET International Radar Conference [C].Guillin,China:[s.n.],2009.1-4.
[17]  Wu R B,Jia Q Q,Li H.A novel STAP method for the detection of fast dim air moving targets [A].Proceedings of IEEE International Conference on Signal Processing (ICSP 2010) [C].Beijing:IEEE,2010.2160-2163.
[18]  吴仁彪,贾琼琼,李海.机载雷达高速空中机动目标检测新方法[J].电子学报,2013,41(1):86-90. Wu Ren-biao,Jia Qiong-qiong,Li Hai.Detection of fast air maneuvering targets via STAP[J].Acta Electronica Sinica,2013,41(1):86-90.(in Chinese)
[19]  Klemm R K.Cramer-Rao analysis of reduced order STAP processors [A].The Record of the IEEE 2000 International Radar Conference [C].Alexandria:IEEE,2000.584-589.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133