Title :
Joint estimation of time delays and directions of arrival of multiple reflections of a known signal
Author :
Wax, Mati ; Leshem, Amir
Author_Institution :
RAFAEL, Haifa, Israel
fDate :
10/1/1997 12:00:00 AM
Abstract :
We present an efficient algorithm for estimating the time delays and the directions-of-arrival (DOAs) of multiple reflections of a known signal. The algorithm is based on an iterative scheme that transforms the multidimensional maximum likelihood criterion into two sets of simple one-dimensional (1-D) maximization problems. Simulation results illustrating the performance of the algorithm in comparison with the Cramer-Rao bound are included
Keywords :
array signal processing; delays; direction-of-arrival estimation; iterative methods; maximum likelihood estimation; 1D maximization problems; Cramer-Rao bound; DOA estimation; algorithm performance; direction of arrival estimation; iterative scheme; joint estimation; multidimensional maximum likelihood criterion; multiple signal reflections; simulation results; time delay estimation; Delay effects; Delay estimation; Direction of arrival estimation; Iterative algorithms; Maximum likelihood estimation; Multipath channels; Phased arrays; Reflection; Sensor arrays; Sensor phenomena and characterization;
Journal_Title :
Signal Processing, IEEE Transactions on
