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Alias-Free Arrays
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DOI：10.1109/LSP.2022.3224834.png)
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Abstract
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Nonuniform array geometries provide freedom for increased aperture and reduced mutual coupling. A necessary and sufficient condition is given for an array of isotropic sensor elements to be unambiguous for any specified set of directions of arrival. The set of unambiguous spatial frequencies is shown to be a parallelepiped, admitting simple geometrical interpretation. Results are used in design of linear, planar, and 3D arrays.
Keywords:
Phased arrays
Array signal processing
Phase unwrapping
direction of arrival
planar array
nonuniform linear array
array design
Journal
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9.6
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1.1W
Citations:
1.7W
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