HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Figures Only Full Text Full Text (PDF) Citation Map Services Email this article to a friend Similar articles in this journal Alert me to new issues of the journal Download to citation manager Google Scholar Articles by McLaughlin, K. L. Articles by Kohl, B. C. GeoRef GeoRef Citation

Evaluation of a Time-Domain Adaptive Beamformer for Regional Phase Detection

Science Applications International Corporation, 8301 Greensboro Drive, McLean, Virginia 22102-3600 keith.l.mclaughlin{at}saic.com

We evaluate the output from the time-domain adaptive beamformer (ABF) developed by Shen (1979) coupled to both incoherent (short-term average/long-term average [STA/LTA]) and coherent F-statistic (FSTAT) detectors. Detection test results on regional phases are compared to the baseline conventional beamformer output coupled to both STA/LTA and FSTAT detectors. Examples and test results are presented that demonstrate reduced detection thresholds, improved clutter rejection, and lower false-alarm rates with a time-domain ABF coupled to either STA/LTA or FSTAT detectors with significant reductions in the false-alarm rate observed for the ABF coupled to the FSTAT detector.