Journal of Systems Engineering and Electronics ›› 2011, Vol. 33 ›› Issue (12): 2643-2648.doi: 10.3969/j.issn.1001-506X.2011.12.14

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Extraction of 2D scattering centers of radar targets based on full polarization GTD model

WANG Jing1, ZHOU Jian-jiang-2, LIAO Qi-xin3   

  1. 1. Science and Technology on Information System Engineering laboratory of the 28th Institute, China Electronics Technology Group Corporation, Nanjing 210007, China; 2. College of Information Science and Technology; Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China; 3. College of Sciences,University of Science and Technology of the PLA, Nanjing 211101, China
  • Online:2011-12-19 Published:2010-01-03

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Abstract:

To extract the radar target scattering centers, a novel twodimensional polarization linear variation ESPRIT (2D-PL-ESPRIT) method based on fullpolarization 2D-GTD model is proposed. Meanwhile, theoretical analysis shows the feasibility of the 2D-PL-ESPRIT method to extract the scattering centers. However, the estimation accuracy is improved and the computational load is greatly decreased compared with the method for extracting the parameters from multiple single polarization channels. Compared with the parallel polarization MUSIC method (2D-PP-MUSIC), the new method avoids the searching of the spatial spectrum and getting scattering types from the orthogonal method. The complex multiplication computational complexity of three methods shows that the 2D-PL-ESPRIT owns the high operation efficiency. Finally, simulations show the validity of 2D-PL-ESPRIT method on fullpolarization 2D-GTD model to extract the scattering centers.

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