Journal
IEEE TRANSACTIONS ON SIGNAL PROCESSING
Volume 48, Issue 8, Pages 2205-2210Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/78.852001
Keywords
antenna arrays; array signal processing; direction-of-arrival estimation; electromagnetic wave polarization; intelligent sensors; land mobile radio diversity systems; radar signal processing; radio direction finding.
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A sparse uniform Cartesian-grid array suffers cyclic ambiguity in its Cartesian direction-cosine estimates due to the spatial Nyquist sampling theorem. The proposed MUSIC-based or MODE-based algorithm improves and generalizes previous disambiguation schemes that populate the thin array grid with identical subarrays-such as electromagnetic vector sensors, under water acoustic vector hydrophones, or half-wavelength spaced subarrays.
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