ArticleSensors (Basel, Switzerland)2018
A Novel Noncircular MUSIC Algorithm Based on the Concept of the Difference and Sum Coarray.
Article in Sensors (Basel, Switzerland), 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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10 citing papers in PubMed.
- Coherent Signal DOA Estimation for MIMO Radar under Composite Background of Strong Interference and Non-Uniform Noise.Sensors (Basel, Switzerland) · 2022Article
- The DOA Estimation Method for Low-Altitude Targets under the Background of Impulse Noise.Sensors (Basel, Switzerland) · 2022Article
- A Vital Signs Fast Detection and Extraction Method of UWB Impulse Radar Based on SVD.Sensors (Basel, Switzerland) · 2022Article
- A-CRNN-Based Method for Coherent DOA Estimation with Unknown Source Number.Sensors (Basel, Switzerland) · 2020Article
- Efficient Two-Dimensional Direction Finding Algorithm for Rectilinear Sources Under Unknown Mutual Coupling.Sensors (Basel, Switzerland) · 2020Article
- Cumulant-based DOA Estimation of Noncircular Signals Against Unknown Mutual Coupling.Sensors (Basel, Switzerland) · 2020Article
- A Novel Real-Valued DOA Algorithm Based on Eigenvalue.Sensors (Basel, Switzerland) · 2019Article
- Estimation of Interference Arrival Direction Based on a Novel Space-Time Conversion MUSIC Algorithm for GNSS Receivers.Sensors (Basel, Switzerland) · 2019Article
- Two-Dimensional Angle Estimation of Two-Parallel Nested Arrays Based on Sparse Bayesian Estimation.Sensors (Basel, Switzerland) · 2018Article
- A Novel Nested Configuration Based on the Difference and Sum Co-Array Concept.Sensors (Basel, Switzerland) · 2018Article
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4 authors.
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Abstract
In this paper, we propose a vectorized noncircular MUSIC (VNCM) algorithm based on the concept of the coarray, which can construct the difference and sum (diff-sum) coarray, for direction finding of the noncircular (NC) quasi-stationary sources. Utilizing both the NC property and the concept of the Khatri-Rao product, the proposed method can be applied to not only the ULA but also sparse arrays. In addition, we utilize the quasi-stationary characteristic instead of the spatial smoothing method to solve the coherent issue generated by the Khatri-Rao product operation so that the available degree of freedom (DOF) of the constructed virtual array will not be reduced by half. Compared with the traditional NC virtual array obtained in the NC MUSIC method, the diff-sum coarray achieves a higher number of DOFs as it comprises both the difference set and the sum set. Due to the complementarity between the difference set and the sum set for the coprime array, we choose the coprime array with multiperiod subarrays (CAMpS) as the array model and summarize the properties of the corresponding diff-sum coarray. Furthermore, we develop a diff-sum coprime array with multiperiod subarrays (DsCAMpS) whose diff-sum coarray has a higher DOF. Simulation results validate the effectiveness of the proposed method and the high DOF of the diff-sum coarray.
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