G. Q. Ji

Nanjing University of Posts and Telecommunications, Nan-ching, Jiangsu Sheng, China

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Publications (2)3.28 Total impact

  • You-Bao Wang · Y.M. Bo · G.Q. Ji · D. Ben · G.X. Jiang · W. Cao
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    ABSTRACT: The technique to integrate the characteristic modes (CMs) with the asymptotic waveform evaluation (AWE) is proposed for computing the radar cross section (RCS) of an arbitrarily shaped three-dimensional perfect electric conductor (PEC). In the analysis, a few CMs with smaller eigenvalues are chosen to construct the subspace of the solution of a matrix equation. Hence, the solution of the equation can be obtained by combining the based-vectors of the subspace with a set of coefficients, which can be determined by the AWE technique at a given frequency. In addition, the criterion of the spectral radius is found in order that the subspace can be adaptively constructed. Finally, the results of numerical examples prove that the novel technique with CMs and AWE (CMAWE) is effective in widening the extrapolation range.
    No preview · Article · Feb 2007 · IEEE Antennas and Wireless Propagation Letters
  • Guang Xing Jiang · H. B. Zhu · G. Q. Ji · W. Cao
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    ABSTRACT: An equivalent expressions for the structures singular value is proposed, leading to an alternative algorithm for its computation. The approach is based to the geometric properties of the m-form numerical range of certain tuples of matrices. Similar to previously considered schemes, the algorithm proposed is proved to give the correct value for block structures of size up to three. For larger sizes, insight is gained into the question of the possible gap between the structured singular value and its known upper bound
    No preview · Article · Feb 2007 · IEEE Microwave and Wireless Components Letters

Publication Stats

11 Citations
3.28 Total Impact Points


  • 2007
    • Nanjing University of Posts and Telecommunications
      Nan-ching, Jiangsu Sheng, China