Name
Title | ||
|---|---|---|
Positive-definite Toeplitz completion in DOA estimation for fully-augmentable nonuniform linear antenna arrays. |
Abstract | ||
|---|---|---|
This paper considers the problem of DOA (direction-of-arrival) estimation for multiple uncorrelated plane waves incident upon so-called "fully-augmentable" sparse linear arrays. When the number of waves, m, is less than the number of antenna sensors, M, a new approach is presented which constructs a full-sized positive definite (p.d.) Toeplitz matrix from the M/spl times/M direct data covariance matrix R/spl circ/. Alternating projections are then applied to find a p.d. Toeplitz matrix with truncated signal subspace. When m/spl ges/M, direct augmentation is used to form an initial Toeplitz estimate which is then treated as in the previous case. Results on simulated data demonstrate that this new approach has superior DOA-estimation performance compared with existing methods. |
Year | DOI | Venue |
|---|---|---|
1996 | 10.1109/ICASSP.1996.547984 | ICASSP |
Keywords | Field | DocType |
fully-augmentable nonuniform linear antenna,toeplitz matrix,spl ge,initial toeplitz estimate,doa estimation,simulated data,positive-definite toeplitz completion,matrix r,spl circ,new approach,m direct data,spl time,direct augmentation,geometry,statistical distributions,direction of arrival,sparse matrices,covariance matrix,information processing,signal processing,antenna array,plane waves,positive definite | Signal processing,Mathematical optimization,Direction of arrival,Positive-definite matrix,Toeplitz matrix,Probability distribution,Covariance matrix,Signal subspace,Sparse matrix,Mathematics | Conference |
ISBN | Citations | PageRank |
0-7803-3192-3 | 3 | 0.85 |
References | Authors | |
3 | 4 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Y. I. Abramovich | 1 | 87 | 11.18 |
| D. A. Gray | 2 | 3 | 0.85 |
| A. Y. Gorokhov | 3 | 209 | 23.37 |
| N. K. Spencer | 4 | 104 | 12.20 |