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Volume 26 Issue 4
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SHI Li, SUN Hui-feng, DENG Yun-kai, AI Jia-qiu, LIU Fan. A fast beam optimization algorithm of spaceborne SAR[J]. CHINESE JOURNAL OF RADIO SCIENCE, 2011, 26(4): 796-801.
Reference format: SHI Li, SUN Hui-feng, DENG Yun-kai, AI Jia-qiu, LIU Fan. A fast beam optimization algorithm of spaceborne SAR[J]. CHINESE JOURNAL OF RADIO SCIENCE, 2011, 26(4): 796-801.
shu

A fast beam optimization algorithm of spaceborne SAR

  • 1.

    Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China

  • 2. Graduate University, Chinese Academy of Sciences, Beijing 100039, China

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  • Received Date: October 21, 2010
  • Available Online: December 30, 2020
  • Published Date: August 30, 2011
    Graphical Abstract
    • Abstract
  • In this paper,a fast beam optimization algorithm for spaceborne Synthetic Aperture Radar(SAR)is proposed.By using this algorithm, the beam of spaceborne SAR antenna is optimized, and the ambiguity areas are depressed.Firstly, the complex value of the array pattern is obtained by using an inverse Fast Fourier transform(IFFT).Then compared to the desired pattern,all the values of the pattern exceeding the desired pattern are replaced by the values of the desired pattern.Repeat the above operation until the array pattern satisfies the pattern requirements.Compared with the conventional methods, the proposed algorithm needs no complicated operation.Therefore, it provides significant improvements in terms of computational speed and optimization time.Two examples are presented to demonstrate the high efficiency and practicality of the method.
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    • References (10)
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