Underdetermined Direction-of-Arrival Estimation Using Difference Coarray in the Presence of Unknown Nonuniform Noise
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Access"
DOI: 10.1109/access.2019.2949920
Abstract: The coarray techniques, e.g., nested and coprime arrays, can significantly improve degrees of freedom (DOFs) via constructing a so-called difference coarray, which enables underdetermined direction-of-arrival (DOA) estimation within reach in the presence of unknown nonuniform… read more here.
Keywords: nonuniform noise; difference coarray; unknown nonuniform; coarray ... See more keywords
Noniterative DOA Estimation Algorithms of Noncircular Signals in Nonuniform Noise Environment
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DOI: 10.1109/access.2020.3031213
Abstract: In this paper, two noniterative direction-of-arrival (DOA) estimation algorithms of noncircular signals in nonuniform noise environment are proposed. Different from the mainstream nonuniform iterative algorithm, the algorithms we proposed in this paper could attain DOA… read more here.
Keywords: nonuniform noise; noise; noise environment; doa estimation ... See more keywords
DOA Estimations With Limited Snapshots Based on Improved Rank-One Correlation Model in Unknown Nonuniform Noise
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Transactions on Vehicular Technology"
DOI: 10.1109/tvt.2021.3105673
Abstract: It is well known that classic direction-of-arrival (DOA) estimation techniques yield unsatisfactory performance with limited snapshots in unknown nonuniform noise. In this article, a sparse reconstruction (SR) DOA estimation method combining vectorized and reduced signal… read more here.
Keywords: limited snapshots; nonuniform noise; doa; based improved ... See more keywords
Direction-of-Arrival Estimation of Coherent Signals for Uniform Linear Antenna Arrays With Mutual Coupling in Unknown Nonuniform Noise
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Vehicular Technology"
DOI: 10.1109/tvt.2021.3132673
Abstract: We recently proposed a direction-of-arrival (DOA) estimation method for the coexistence of uncorrelated and coherent signals, which is related to the uniform linear antenna arrays with mutual coupling (MC) in the presence of unknown nonuniform… read more here.
Keywords: nonuniform noise; antenna; estimation; direction arrival ... See more keywords
Gridless DOA Estimation for Minimum-Redundancy Linear Array in Nonuniform Noise
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DOI: 10.1155/2020/1580391
Abstract: A gridless direction-of-arrival (DOA) estimation method to improve the estimation accuracy and resolution in nonuniform noise is proposed in this paper. This algorithm adopts the structure of minimum-redundancy linear array (MRA) and can be composed… read more here.
Keywords: estimation; nonuniform noise; minimum redundancy; doa estimation ... See more keywords