Direction of arrival tracking below the ambiguity threshold

Author

Wax, Mati ; Tweg, Ruby

Author_Institution

RAFAEL, Haifa, Israel

Volume

36

Issue

2

fYear

2000

fDate

4/1/2000 12:00:00 AM

Firstpage

354

Lastpage

363

Abstract

We present an algorithm for direction-of-arrival (DOA) tracking that allows operation below the ambiguity threshold of the direction-finding (DF) system. Using multiple target tracking techniques, the algorithm turns the most likely DOAs of each measurement into multiple potential tracks and then selects the true track as that with the maximum cumulative likelihood. The improvement offered by the algorithm, namely the extension of the ambiguity-free signal-to-noise ratio (SNR) domain, is demonstrated in several simulated experiments using several array structures, including a sparse array and a uniform linear array

Keywords

direction-of-arrival estimation; linear antenna arrays; maximum likelihood estimation; target tracking; DOAs; ambiguity threshold; ambiguity-free signal-to-noise ratio domain; array structures; direction of arrival tracking; maximum cumulative likelihood; multiple potential tracks; multiple target tracking techniques; sparse array; uniform linear array; Apertures; Delay effects; Delay estimation; Direction of arrival estimation; Histograms; Maximum likelihood estimation; Navigation; Sensor arrays; Signal to noise ratio; Target tracking;

fLanguage

English

Journal_Title

Aerospace and Electronic Systems, IEEE Transactions on

Publisher

ieee

ISSN

0018-9251

Type

jour

DOI

10.1109/7.845213

Filename

845213