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, underwater acoustic vector hydrophones, or half-wavelength spaced subarrays.
ASJC Scopus subject areas
- Signal Processing
- Electrical and Electronic Engineering