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

Volume

45

Issue

10

fYear

1997

fDate

10/1/1997 12:00:00 AM

Firstpage

2477

Lastpage

2484

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;

fLanguage

English

Journal_Title

Signal Processing, IEEE Transactions on

Publisher

ieee

ISSN

1053-587X

Type

jour

DOI

10.1109/78.640713

Filename

640713