NDLI: Evaluation of beamforming and direction finding for a phased array HF ocean current radar

Content Provider	IEEE Xplore Digital Library
Author	Wei Wang Gill, E.W.
Copyright Year	2013
Description	Author affiliation: Memorial Univ. of Newfoundland, St. John's, NL, Canada (Wei Wang; Gill, E.W.)
Abstract	This paper presents a simulation-based study of the effects of beamforming (BF) and direction finding (DF) algorithms on the errors in ocean surface radial currents measurements by High Frequency Surface Wave Radar (HFSWR). They are adopted usually for phased arrays and compact arrays, respectively. In this study, both BF and DF are investigated for phased arrays. Particularly, using MUltiple Signal Classification (MUSIC) for direction finding in phased arrays is a subject which has received little attention. Through simulations of the first order sea clutter under various current scenarios, the mean RMS errors between radar-derived and simulated reference current profiles are examined extensively. A combination of using Barlett beamforming before and after Doppler processing is introduced to effectively increase the number of current estimates. The MUSIC algorithm has shown promising performance in target detection and current measurements when BF is used to first establish the maximum current velocity.
Sponsorship	IEEE Aerosp. Electron. Syst. Soc.
Starting Page	417
Ending Page	422
File Size	238222
Page Count	6
File Format	PDF
ISBN	9781467348218
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-06-19
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	German Inst of Navigation
Subject Keyword	Sea surface Current measurement Radar Multiple signal classification Arrays Signal to noise ratio
Content Type	Text
Resource Type	Article

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