Blind beamforming/geolocation for wideband-FFHs with unknown hop-sequences

Author

Wong, Kainam Thomas

Author_Institution

Chinese Univ. of Hong Kong, Shatin, China

Volume

37

Issue

1

fYear

2001

fDate

1/1/2001 12:00:00 AM

Firstpage

65

Lastpage

76

Abstract

An ESPRIT based adaptive geolocation and blind interference rejection scheme is herein proposed for multiple noncooperative wideband fast frequency-hop (FFH) signals of unknown hop sequences and unknown arrival angles using one electromagnetic vector-sensor. Beamforming weights need no adjustments to accommodate the frequency hops. The sources´ polarizational diversity, angular spatial diversity, and temporal characteristics are all exploited. Applications include electronic surveillance and direction finding of noncooperative sources, plus blind cochannel interference rejection in frequency-hop code-division multiple-access (FH-CDMA) wireless communications

Keywords

array signal processing; cochannel interference; code division multiple access; covariance matrices; direction-of-arrival estimation; diversity reception; eigenvalues and eigenfunctions; frequency hop communication; interference suppression; radio direction-finding; ESPRIT based scheme; FH-CDMA wireless communication; adaptive geolocation; angular spatial diversity; blind beamforming; blind interference rejection; cochannel signals; direction finding; electromagnetic vector-sensor; electronic surveillance; multiple noncooperative wideband FFH signals; noncooperative sources; polarizational diversity; temporal characteristics; unknown arrival angles; unknown hop sequences; Array signal processing; Electromagnetic interference; Electromagnetic wave polarization; Frequency; Jamming; Multiple access interference; Navigation; Sensor arrays; Wideband; Wireless communication;

fLanguage

English

Journal_Title

Aerospace and Electronic Systems, IEEE Transactions on

Publisher

ieee

ISSN

0018-9251

Type

jour

DOI

10.1109/7.913668

Filename

913668