ESTIMATING DIRECTIONS-OF-ARRIVAL OF COHERENT SIGNALS IN UNKNOWN CORRELATED NOISE VIA SPATIAL SMOOTHING

Authors
TAN KC OH GL
Citation
Kc. Tan et Gl. Oh, ESTIMATING DIRECTIONS-OF-ARRIVAL OF COHERENT SIGNALS IN UNKNOWN CORRELATED NOISE VIA SPATIAL SMOOTHING, IEEE transactions on signal processing, 45(4), 1997, pp. 1087-1091
Citations number
10
Categorie Soggetti
Engineering, Eletrical & Electronic
Journal title
IEEE transactions on signal processing → ACNP
ISSN journal
1053587X
Volume
45
Issue
4
Year of publication
1997
Pages
1087 - 1091
Database
ISI
SICI code
1053-587X(1997)45:4<1087:EDOCSI>2.0.ZU;2-8
Abstract
We show that any weighted spatial smoothing (WSS) of subarray covarian ce matrices with nonzero weights will lead to a decorrelation of signa ls, and we discuss the consequences of using negative weights. We next propose a WSS that will eliminate correlated noise and establish a re lationship between the WSS and covariance differencing. Finally, we pr esent numerical results to demonstrate the effectiveness of the propos ed WSS.