%0 Report %D 1998 %T Direction of Arrival and the Rank-Revealing URV Decomposition %A Boman,E. C %A Griffen,M. F %A Stewart, G.W. %K Technical Report %X In many practical direction-of-arrival (DOA) problems the numberof sources and their directions from an antenna array do not remain stationary. Hence a practical DOA algorithm must be able to track changes with a minimal number of snapshots. In this paper we describe DOA algorithms, based on a new decomposition, that are not expensive to compute or difficult to update. The algorithms are compared with algorithms based on the singular value decomposition (SVD). (Also cross-referenced as UMIACS-TR-91-166) %I Instititue for Advanced Computer Studies, Univ of Maryland, College Park %V UMIACS-TR-91-166 %8 1998/10/15/ %G eng %U http://drum.lib.umd.edu/handle/1903/561