Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4973873 | Digital Signal Processing | 2017 | 9 Pages |
Abstract
We propose a new scheme to estimate the directions-of-arrival (DOAs) of mixed coherent and uncorrelated targets exploiting a collocated multiple-input multiple-output (MIMO) radar with transmit/receive coprime arrays. In the proposed scheme, the DOAs of the uncorrelated targets are first estimated using subspace-based methods, whereas those of the coherent targets are resolved using Bayesian compressive sensing. Compared with the previous works, the proposed approach achieves improved DOA estimation accuracy with a flexible coprime array configuration and may resolve more targets than the number of coarray elements. Theoretical analysis and simulation results validate the effectiveness of the proposed technique.
Related Topics
Physical Sciences and Engineering
Computer Science
Signal Processing
Authors
Si Qin, Yimin D. Zhang, Moeness G. Amin,