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In this paper, we propose a new Direction-of-Arrival (DOA) estimator called Conjugate Augmented MUSIC (CAM). The basic idea of CAM is to use the second-order statistics of the received signals to get the conjugate steering matrix. This, together with the steering matrix, is used to find the fourth-order cumulants. From that the source directions are obtained using the MUSIC-like algorithm. CAM can resolve two times the number of directions when compared to MUSIC-like estimator. Moreover, simulation results show that the estimation capacity, angle resolution, immunity to noise, and the number of required snapshots are all better than MUSIC-like algorithm.
Published in:
Signal Processing, IEEE Transactions on
(Volume:53
,
Issue:
11
)
Date of Publication: Nov. 2005
- Page(s):
- 4104 - 4109
- ISSN :
- 1053-587X
- INSPEC Accession Number:
- 8631089
- Digital Object Identifier :
- 10.1109/TSP.2005.857012
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 17 October 2005
- Issue Date :
- Nov. 2005
- Sponsored by :
- IEEE Signal Processing Society
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