Performance of DF techniques with a VHF antenna array

Author

Wang, Fengzhen ; Lo, Titus ; Litva, John ; Read, William

Author_Institution

Commun. Res. Lab., McMaster Univ., Hamilton, Ont., Canada

Volume

31

Issue

2

fYear

1995

fDate

4/1/1995 12:00:00 AM

Firstpage

685

Lastpage

694

Abstract

A description of practical data processing techniques that have been used for direction finding (DF) with a real array is presented. The measured data were collected using a DF trial "test bed", which was developed at the Defence Research Establishment Ottawa (DREO) and is based on digital beamforming (DBF) technology. The system transmitters are used to simulate a complex signal environment and can be operated in a continuum of frequencies in the VHF band. In the paper, we present (1) a signal model, (2) multipath analysis, (3) array error calibration, (4) spatio-temporal estimation using multiple snapshots, (5) multiple snapshot forward backward two-step prediction DF, and (6) performance evaluation of DF algorithm. The DF results for a wideband radio source are also included.<>

Keywords

VHF devices; antenna arrays; performance evaluation; radio direction-finding; signal detection; signal processing; DF techniques; Defence Research Establishment Ottawa; VHF antenna array; VHF band; complex signal environment; data processing; digital beamforming; direction finding; multipath analysis; signal model; Antenna arrays; Antenna measurements; Array signal processing; Data processing; Error analysis; Frequency; Predictive models; Radio transmitters; Signal analysis; Testing;

fLanguage

English

Journal_Title

Aerospace and Electronic Systems, IEEE Transactions on

Publisher

ieee

ISSN

0018-9251

Type

jour

DOI

10.1109/7.381916

Filename

381916