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Volume 27 Issue 2
Feb.  2001
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Journal of Beijing University of Aeronautics and Astronautics  > 2001  >  27(2): 150-152.
LI Yu-xing, WANG Zhen-rong, LU Xu-dong, et al. Curve Simulation for Nonlinearity in Frequency Sweep in ISAR Imaging[J]. Journal of Beijing University of Aeronautics and Astronautics, 2001, 27(2): 150-152. (in Chinese)
Citation: LI Yu-xing, WANG Zhen-rong, LU Xu-dong, et al. Curve Simulation for Nonlinearity in Frequency Sweep in ISAR Imaging[J]. Journal of Beijing University of Aeronautics and Astronautics, 2001, 27(2): 150-152. (in Chinese)
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Curve Simulation for Nonlinearity in Frequency Sweep in ISAR Imaging

  • Beijing University of Aeronautics and Astronautics, Dept. of Electronic Engineering

  • Received Date: 03 Dec 1999
  • Publish Date: 28 Feb 2001
    Abstract
  • LFM is one of widely used methods of ISAR. Nonlinearity in frequency sweep has some effects on the quality of imaging. Especially in the high-frequency, broad-band and short-tune frequency sweep, frequency swept nonlineatity of LFM curve can hardly distribute it. Based on the theory of ISAR, using simple maths methods, the method of using arbitrary times polynomial simulation for the nonlinearity testing of LFM signal is studied for the first time. Finally, the correctness of this method is approved by one experiment.

     

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    • References(1)
  • [1] 张直中. 微波成像术[M]. 北京:科学出版社, 1990. [2] Dupas J. ISAR polarimetric aircraft images . In:International Conference on Radar . Paris:, 1994. 576~581. [3] Charles K Chui. An introduction to wavelets[M]. New York:Academic Press, 1992. [4] Ausherman D A, Kozma A, Walker J L. Developments in radar imaging[J]. IEEE Trans on AES, 1984, 20(4):363~398. [5] 黄培康. 雷达目标特性信号[M]. 北京:宇航出版社, 1993.
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