Simultaneous frequency and direction estimation from parallel-array data

Author

Lijia, Ge ; TIanQi, Chen ; Xiangfu, HUANG

Author_Institution

Dept. of Electron. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu, China

Volume

142

Issue

1

fYear

1995

fDate

2/1/1995 12:00:00 AM

Firstpage

6

Lastpage

10

Abstract

A new method is proposed which provides the simultaneous estimation of both the centre frequency and the direction of arrival of multiple narrowband sources. Based on rotational-invariance techniques, the joint estimates are computed directly by appropriate processing of data from particular types of array instead of searching in a two-dimensional space. As a result, the computational efficiency is improved significantly. Some important scenarios are considered such as signals arriving from the same direction but having different centre frequencies distributed in a broadband frequency range. The potential capability are demonstrated by simulations

Keywords

covariance matrices; direction-of-arrival estimation; frequency estimation; ESPRIT; array processing; broadband frequency range; centre frequency estimation; computational efficiency; direction of arrival estimation; multiple narrowband sources; rotational-invariance techniques; sensor array; simulations; simultaneous estimation; two-dimensional space;

fLanguage

English

Journal_Title

Radar, Sonar and Navigation, IEE Proceedings -

Publisher

iet

ISSN

1350-2395

Type

jour

DOI

10.1049/ip-rsn:19951510

Filename

370788