Volume 7 Issue 2
May  2018
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Xiang Zhe, Chen Baixiao. Range-angle Decoupled Transmit Beamforming with Frequency Diverse Array (in English)[J]. Journal of Radars, 2018, 7(2): 212-219. doi: 10.12000/JR16113
Citation: Xiang Zhe, Chen Baixiao. Range-angle Decoupled Transmit Beamforming with Frequency Diverse Array (in English)[J]. Journal of Radars, 2018, 7(2): 212-219. doi: 10.12000/JR16113

Range-angle Decoupled Transmit Beamforming with Frequency Diverse Array (in English)

doi: 10.12000/JR16113
Funds:  The National Natural Science Foundation of China (61571344), Shanghai Academy of Spaceflight Technology (SAST2015064, SAST2015071)
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  • Author Bio:

    Xiang Zhe was born in Anhui, China in 1992. He received the Bachelor Degree in 2009 from Xidian University. He is currently working toward his Ph.D. degree in Signal Processing at National Laboratory for Radar Signal Processing of Xidian University. His major interests are frequency diverse radar, polarimetric radar, and interference suppression. E-mail: xzysn152@163.com

    Chen Baixiao was born in Anhui, China in 1966. He received the Master degree and the Ph.D. degree in 1994 and 1997, respectively, from Xidian University. He is a professor with National Laboratory for Radar Signal Processing of Xidian University. His research interests include array signal processing and polarimetric radar. E-mail: bxchen@xidian.edu.cn

  • Corresponding author: Chen Baixiao. E-mail: bxchen@xidian.edu.cn
  • Received Date: 2016-10-08
  • Rev Recd Date: 2017-01-20
  • Publish Date: 2018-04-28
  • It has been shown that Frequency Diverse Arrays (FDA) exhibit a range-angle dependent beam steering feature by employing a uniform frequency increment across the array elements. However, this beam pattern generates maxima at multiple range values, possibly leading to loss of signal-to-interference-plus-noise ratio when the interferences are located at any of the maxima. Herein, we prove that the beam pattern of FDA is range-periodic and propose the basic criteria for the FDA configuration to decouple the range and angle. In an illuminated space, a single-maximum beam pattern can be obtained by configuring the frequency increment between the elements. Specific examples have been discussed herein, and the simulation results verify the proposed theory.

     

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