Reduced-dimensional Coarray-based Decomposition for Efficient Direction-of-arrival Estimation

Xiang Li

doi:10.1016/j.sigpro.2026.110517

Reduced-dimensional Coarray-based Decomposition for Efficient Direction-of-arrival Estimation

2026-02-04

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DOI：10.1016/j.sigpro.2026.110517

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• An adapted reduced-dimensional framework for covariance matrix of large-aperture spare arrays based on the number of sources; • An equivalent low-dimensional decomposition scheme and a half-spectrum search function for efficient DOA estimation; • Reduced computational complexity and superior estimation performance demonstrated through numerical simulations;

Reduced-dimensional Coarray-based Decomposition for Efficient Direction-of-arrival Estimation

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