Title :
Cross-coupled DOA trackers
Author :
Pérez-Neira, Ana ; Lagunas, Miguel A. ; Kirlin, R. Lynn
Author_Institution :
Dept. of Signal Theory & Commun., Univ. Politecnica de Catalunya, Barcelona, Spain
fDate :
10/1/1997 12:00:00 AM
Abstract :
A new robust, low complexity algorithm for multiuser tracking is proposed, modifying the two-stage parallel architecture of the estimate-maximize (EM) algorithm. The algorithm copes with spatially colored noise, large differences in source powers, multipath, and crossing trajectories. Following a discussion on stability, the simulations demonstrate an asymptotic and tracking behavior that neither the EM nor a nonparallelized tracker can emulate
Keywords :
array signal processing; asymptotic stability; computational complexity; digital radio; direction-of-arrival estimation; land mobile radio; optimisation; parallel algorithms; radio direction-finding; tracking; asymptotic behavior; cross-coupled DOA trackers; crossing trajectories; estimate-maximize algorithm; multipath; multiuser tracking; robust low complexity algorithm; source powers; spatially colored noise; stability; tracking behavior; two-stage parallel architecture; Adaptive arrays; Array signal processing; Direction of arrival estimation; Maximum likelihood estimation; Parallel architectures; Sensor arrays; Signal processing; Signal processing algorithms; Transmission line matrix methods; Vectors;
Journal_Title :
Signal Processing, IEEE Transactions on
