In many practical direction-of-arrival (DOA) problems the number of 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 di cult to update. The algorithms are compared with algorithms based on the singular value decomposition (SVD). This report is available by anonymous ftp from thales.cs.umd.edu in the directory pub/reports.
received his Ph.D. from the University of Connecticut in 1993. While in graduate school he began collecting antique slide rules, a hobby which he continued to pursue after he was hired at Penn State's DuBois campus in 1996 and continues today at Penn State's Harrisburg campus which he joined in 2006. He hopes someday to own enough slide rules to require adding a room to his home in which to store his collection. His wife and two daughters are very patient. It is a true saying that "One falsehood leads easily to another." Cicero (106 BC-43 BC) I'm not the greatest; I'm the double greatest. Not only do I knock 'em out, I pick the round.
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