Robust Off-Grid DOA Estimation for Noncircular Signals With Virtual SDCA

In this letter, a robust off-grid direction of arrival estimation algorithm based on sum-difference co-array (SDCA) under nonuniform noise environment is proposed for noncircular signals. The proposed method combines the coprime array (CA)'s features with those of noncircular signals, and it is...

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Bibliographic Details
Published in:IEEE sensors letters 2022-12, Vol.6 (12), p.1-4
Main Authors: Jian, Linlu, Wang, Xianpeng, Lan, Xiang
Format: Article
Language:English
Subjects:
Algorithms
Apertures
Arrays
Bayes methods
Covariance
Direction of arrival
Direction-of-arrival estimation
Estimation
noncircular signal
nonuniform noise
Robustness
sensor applications
Sensor signal processing
Sensors
sparse Bayesian learning
Sparse matrices
virtual sum-diff coarray
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