DocumentCode
1268726
Title
Stochastic Cramer-Rao bound for direction estimation in unknown noise fields
Author
Gershman, A.B. ; Stoica, P. ; Pesavento, M. ; Larsson, E.G.
Author_Institution
Commun. Res. Lab., McMaster Univ., Hamilton, Ont., Canada
Volume
149
Issue
1
fYear
2002
fDate
2/1/2002 12:00:00 AM
Firstpage
2
Lastpage
8
Abstract
The stochastic Cramer-Rao bound (CRB) plays an important role in array processing because several advanced high-resolution direction-of-arrival (DOA) estimation methods are known to achieve this bound asymptotically. In the paper, the stochastic CRB on the DOA estimation accuracy is studied in the general case of an arbitrary unknown noise field parameterised by a vector of unknowns. Explicit closed-form expressions for the CRB are derived and its properties are examined theoretically and by practically relevant numerical examples
Keywords
array signal processing; direction-of-arrival estimation; DOA; advanced high-resolution direction-of-arrival estimation methods; array signal processing; direction estimation; explicit closed-form expressions; stochastic Cramer-Rao bound; unknown noise fields;
fLanguage
English
Journal_Title
Radar, Sonar and Navigation, IEE Proceedings -
Publisher
iet
ISSN
1350-2395
Type
jour
DOI
10.1049/ip-rsn:20020124
Filename
993565
Link To Document