ArticleSensors (Basel, Switzerland)2017
A Direct Coarray Interpolation Approach for Direction Finding.
Article in Sensors (Basel, Switzerland), 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Joint Estimation Method of DOD and DOA of Bistatic Coprime Array MIMO Radar for Coherent Targets Based on Low-Rank Matrix Reconstruction.Sensors (Basel, Switzerland) · 2022Article
- Multi-Frequency Based Direction-of-Arrival Estimation forSensors (Basel, Switzerland) · 2018Article
- DOA Estimation for Coprime Linear Array Based on MI-ESPRIT and Lookup Table.Sensors (Basel, Switzerland) · 2018Article
- Two-Dimensional DOA Estimation for Three-Parallel Nested Subarrays via Sparse Representation.Sensors (Basel, Switzerland) · 2018Article
- Two-Dimensional Direction-of-Arrival Fast Estimation of Multiple Signals with Matrix Completion Theory in Coprime Planar Array.Sensors (Basel, Switzerland) · 2018Article
- Improved Coarray Interpolation Algorithms with Additional Orthogonal Constraint for Cyclostationary Signals.Sensors (Basel, Switzerland) · 2018Article
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Authors and funding
3 authors.
Funding
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Abstract
Sparse arrays have gained considerable attention in recent years because they can resolve more sources than the number of sensors. The coprime array can resolve O ( M N ) sources with only O ( M + N ) sensors, and is a popular sparse array structure due to its closed-form expressions for array configuration and the reduction of the mutual coupling effect. However, because of the existence of holes in its coarray, the performance of subspace-based direction of arrival (DOA) estimation algorithms such as MUSIC and ESPRIT is limited. Several coarray interpolation approaches have been proposed to address this issue. In this paper, a novel DOA estimation approach via direct coarray interpolation is proposed. By using the direct coarray interpolation, the reshaping and spatial smoothing operations in coarray-based DOA estimation are not needed. Compared with existing approaches, the proposed approach can achieve a better accuracy with lower complexity. In addition, an improved angular resolution capability is obtained by using the proposed approach. Numerical simulations are conducted to validate the effectiveness of the proposed approach.
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