NARROW-BAND LINE-ARRAY BEAMFORMING - PRACTICALLY ACHIEVABLE RESOLUTION LIMIT OF UNBIASED ESTIMATORS

Authors
SWINGLER DN
Citation
Dn. Swingler, NARROW-BAND LINE-ARRAY BEAMFORMING - PRACTICALLY ACHIEVABLE RESOLUTION LIMIT OF UNBIASED ESTIMATORS, IEEE journal of oceanic engineering, 19(2), 1994, pp. 225-226
Citations number
1
Categorie Soggetti
Oceanografhy,"Engineering, Civil","Engineering, Eletrical & Electronic","Engineering, Marine
Journal title
IEEE journal of oceanic engineering → ACNP
ISSN journal
03649059
Volume
19
Issue
2
Year of publication
1994
Pages
225 - 226
Database
ISI
SICI code
0364-9059(1994)19:2<225:NLB-PA>2.0.ZU;2-L
Abstract
Based on an approximation to the Cramer-Rao lower bound, it is demonst rated that meaningful resolution with an unbiased narrowband estimator requires a source separation of at least about 1/10 of a Rayleigh bea mwidth, even under ideal circumstances, with 1/4 beamwidth being a mor e practically achievable figure.