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高速旋转目标旋转速度估计方法 被引量：6

Spinning-Rate Estimate of Rapidly Spinning Target
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摘要 旋转速度估计是高速旋转目标成像的基础,论文提出一种新的旋转速度估计方法,该算法基于旋转目标在距离时间域所具有的特性,在利用傅里叶变换粗略估计旋转速度的基础上,利用计算图像熵的方法在特定范围内对角速度估计值进行调整,以获得很高的估计精度。该方法直接计算整幅图像的熵值,从而不依赖单个的散射点。使用仿真数据演示了算法的性能,证明了算法的有效性。 Spinning-rate estimate is the base of rapidly spinning target imaging. A new spinning-rate estimating method is proposed in this paper. Base on the characteristic of rapidly spinning target in the range-time image, a primary estimate using Fourier transform is put forward. And it is refined in specified range by calculating the entropy of the whole image, which is independent of single scatter point. Simulations with synthetic data demonstrate the performance of the new method. The results confirm its effectiveness.
作者 胡杰民 付耀文 胡志刚 黎湘
机构地区 国防科技大学空间电子信息技术研究所
出处 《电子与信息学报》 EI CSCD 北大核心 2009年第9期2069-2073,共5页 Journal of Electronics & Information Technology
基金 国家安全重大基础研究项目资助课题
关键词 逆合成孔径雷达 转动目标 旋转速度估计 离散傅里叶变换 ISAR（Inverse Synthetic Aperture Radar） Spinning target Estimation of spinning-rate Discrete Fourier transform
分类号 TN957.52 [电子电信—信号与信息处理]
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参考文献10

  • 1Rihaczek A W and Hershkowitz S J. Radar Resolution and Complex-Image Analysis[M]. Boston: Artech House, 1996: 280-293.
  • 2Liu A F, Zhu X H, and Lu J H. The ISAR range profile compensation of fast-moving target using the dechirp method[C]. Proceedings of International Conference on Neural Networks & Signal Processing, Nanjing, China, Dec. 2003: 1619-1623.
  • 3Xiao H and Qiu Y Z. Maximum likelihood based range alignment for ISAR imaging[C]. IEEE Antennas and Propagation Society Symposium, Monterey, CA, USA, Jun. 2004.2: 2013-2016.
  • 4Luigi C D and Jauffret C. Estimation and classification of FM signals using time frequency transforms[J]. IEEE Transactions on Aerospace and Electronic Systems, 2005, 41(2): 421-437.
  • 5Xu R Q, Cao Z D, and Liu Y T. Motion compensation for ISAR and noise effect[J]. IEEE Aerospace and Electronic Systems Magazine, 1990, 5(6): 20-22.
  • 6Yau D, Berry P E, and Haywood B. Eigenspace-based motion compensation for ISAR Target Imaging. EURASIP Journal on Applied Signal Processing, Volume 2006, Article ID: 90716.
  • 7Berizzi F, Mese E D, and Martorella M. Performance analysis of a contrast-based ISAR autofocusing algorithm, Proceedings of the 2002 IEEE Radar Conference, LongBeach,CA. April. 2002: 200-205.
  • 8Ferreras J M M and Martinez F P. Non-uniform rotation rate estimation for ISAR in case of slant range migration induced by angular motion. Radar, Sonar & Navigation, IET. 2007, 1(4): 251-260.
  • 9Wang Qi, Xing Meng-dao, Lu Guang-yue, and Bao Zheng. High-resolution three-dimensional radar imaging for rapidly spinning targets. IEEE Transactions on Geoscience and Remote Sensing, 2008, 46(1): 22-30.
  • 10陈行勇,姜卫东,刘永祥,黎湘,郭桂蓉.相位匹配处理微动目标ISAR成像[J].电子学报,2007,35(3):435-440. 被引量：10

二级参考文献13

  • 1Chen V C,Li F Y,Ho S S.Micro-Doppler effect in radar-phenomenon,model and simulation study[J].IEEE Transactions on Aerospace and Electronic Systems,2006,42(1):2-21.
  • 2Chen V C.Micro-Doppler effect of micro-motion dynamics:A review[A].Proceedings of SPIE on Independent Component Analyses,Wavelets,and Neural Networks[C].Orlando,UAS:SPIE,2003.240-249.
  • 3Chen V C,Li F.Analysis of micro-Doppler signatures[J].IEE Proceedings on Radar,Sonar and Navigation,2003,150(4):271-276.
  • 4Chen V C,Ling H.Time-Frequency Transforms for Radar Imaging and Signal Analysis[M].Boston:Artech House,2002,93-104.
  • 5Thayaparan T,Lampropoulos G,Wong S K,et al.Applications of adaptive joint time-frequency algorithm for focusing distorted ISAR images from simulated and measured radar data[J].IEE Proceedings on Radar,Sonar and Navigation,2003,150(4):213-220.
  • 6hayaparan T,Lampropoulos G,Wong S K.Distortion in the inverse Synthetic Aperture Radar (ISAR) images of a target with time-varying perturbed motion[J].IEE Proceedings on Radar,Sonar and Navigation,2003,150(4):221-227.
  • 7Wong S,Riseborough E,Duff G.Experimental Investigations on the Distortion of ISAR Images Using Different Radar Waveforms[R].Ottawa,Canada:Defence R&D Canada,2004.
  • 8Yamamoto K,Iwamoto M,Fujisaka T,et al.An ISAR imaging algorithm for multiple targets of different radial velocity[J].Electronics and Communications in Japan,Part 1,2003,86(7):1-10.
  • 9Iwamoto M,Fujisaka T.Autofocus algorithm of inverse synthetic aperture radar using entropy[J].Electronics and Communications in Japan,Part 1,2000,83(2):97-106.
  • 10Alexander E,Poularikas D.The Handbook of Formulas and Tables for Signal Processing[M].Boca Raton,FL,USA:CRC Press,1998,73-79.

共引文献9

同被引文献46

引证文献6

二级引证文献13

电子与信息学报
2009年 第9期

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