Volume 8 Issue 4
Aug.  2019
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Article Navigation >  Journal of Radars  > 2019  >  8(4): 510-518
ZHANG Xinxun, ZHOU Shenghua, and LIU Hongwei. Influence of target polarization scattering characteristics on the detection performance of polarization diversity radar[J]. Journal of Radars, 2019, 8(4): 510–518. doi: 10.12000/JR18112
Citation: ZHANG Xinxun, ZHOU Shenghua, and LIU Hongwei. Influence of target polarization scattering characteristics on the detection performance of polarization diversity radar[J]. Journal of Radars, 2019, 8(4): 510–518. doi: 10.12000/JR18112
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Influence of Target Polarization Scattering Characteristics on the Detection Performance of Polarization Diversity Radar

DOI: 10.12000/JR18112
  • ①.

    National Laboratory of Radar Signal Processing, Xidian University, Xi’an 710071, China

  • ②.

    Collaborative Innovation Center of Information Sensing and Understanding at Xidian University, Xi’an 710071, China

  • ③.

    Air Force Early Warning Academy, Wuhan 430019, China

Funds:  The National Natural Science Foundation of China (61401329, 61372134, 61372136), The National Science Fund for Distinguished Young Scholars (61525105)
More Information
  • Corresponding author: ZHANG Xinxun, zxx819@sina.com
  • Received Date: 2018-12-13
  • Rev Recd Date: 2019-01-06
  • Publish Date: 2019-08-28
    Abstract
  • This study investigates the influence of the target polarization scattering characteristics on the detection performance of Polarization Diversity Radar (PDR) system with three typical working modes: full polarization mode, mixed polarization mode, and single polarization mode. The statistical properties of target echo signal corresponding to the three modes are separately deduced based on the statistical model of target polarization scattering and the receiving voltage equations. Furthermore, the optimal polarization diversity multi-channel fusion detection algorithm is designed under the Neyman-Pearson criterion in the background of Gaussian distribution, and closed-form expressions of probability of false alarm and detection are derived. The simulation results show that the correlations between the polarization scattering components of the target, particularly the correlations between the matched and cross polarization scattering components of the target, have greater effect on the detection performance of PDR for a given system Signal-to-Noise Ratio (SNR). In addition, the detection performance of the full and single polarization modes is more robust than that of the mixed polarization mode.

     

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