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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2026-08-31
Fast Monostatic Scattering Analysis of Large-Scale Periodic Arrays Using an MMV-CS-CM-SED Method
By
Yukun Ding,

    Dr. Yukun Ding

    School of Electrical and Information Engineering

    Anhui University of Science and Technology

    China

    Homepage

Zhonggen Wang,

    Professor Zhonggen Wang

    College of Electrical and Information Engineering

    Anhui University of Science and Technology

    China

    Homepage

Wenyan Nie,

    Professor Wenyan Nie

    College of Mechanical Electrical Engineering

    Huainan Normal University

    China

    Homepage

Quan Sun

    Dr. Quan Sun

    School of Automation

    Nanjing Institute of Technology

    China

    Homepage

Progress In Electromagnetics Research C, Vol. 173, 83-91, 2026
doi:10.2528/PIERC26070202 | Google Scholar

Abstract
Conventional methods face prohibitive computational overhead for multi-aspect monostatic scattering analysis of large-scale finite periodic arrays (LFPAs) due to repetitive preprocessing and full-matrix inversion under wide-angle multiple-incidence scenarios. To meet this challenge, this paper proposes an efficient multi-measurement vector compressive sensing framework combined with characteristic mode subdomain extraction (MMV-CS-CM-SED). It extracts excitation-independent CM-SED basis functions from a coupled subarray, forming a reusable sparse dictionary. Furthermore, we introduce a uniform spatial sampling strategy based on golden-section low-discrepancy sequences, which drastically reduces matrix filling by extracting only a small portion of impedance matrix rows. Finally, the method leverages the joint sparsity of multi-angle coefficients through an MMV model to accelerate the solution process. Numerical results demonstrate that, compared to the accurate subdomain entire-domain (ASED) and method of moments (MoM), the proposed method achieves high radar cross section (RCS) accuracy while reducing total matrix filling and computational time by over 70%, validating its efficiency and accuracy for large-scale array electromagnetic analyses.
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Citation
Yukun Ding, Zhonggen Wang, Wenyan Nie, and Quan Sun, "Fast Monostatic Scattering Analysis of Large-Scale Periodic Arrays Using an MMV-CS-CM-SED Method," Progress In Electromagnetics Research C, Vol. 173, 83-91, 2026.
doi:10.2528/PIERC26070202
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