A portable smart antenna system

Author

Loy Kai Soon ; Liew Yew Pheng ; Fu, J.S. ; Cai Chengjie

Author_Institution

Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore, Singapore

Volume

1

fYear

2004

Firstpage

200

Abstract

We have developed a new system to determine the direction of arrival (DOA) of a signal and provide digital beamforming (DBF). The conventional method uses IF signal combiners to perform DOA algorithms and phase shifters to perform beamforming. This method relies on a very complicated RF design which causes the system to be expensive. The paper looks into the use of a general purpose digital signal processor (DSP) and common receivers to perform both the DOA estimation and the DBF algorithms. This is especially useful in enhancing the performance of communication systems which have demodulated in-phase and quadrature signals.

Keywords

adaptive antenna arrays; array signal processing; direction-of-arrival estimation; mobile antennas; radio receivers; DOA algorithms; DOA estimation; IF signal combiners; RF design; common receivers; demodulated in-phase signals; demodulated quadrature signals; digital beamforming; direction of arrival estimation; general purpose DSP; general purpose digital signal processor; phase shifters; portable smart antenna system; Array signal processing; Baseband; Digital signal processing; Direction of arrival estimation; Directive antennas; Interference; Oscillators; Radio frequency; Signal processing algorithms; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, Circuits and Systems, 2004. ICCCAS 2004. 2004 International Conference on

Conference_Location

Chengdu

Print_ISBN

0-7803-8647-7

Type

conf

DOI

10.1109/ICCCAS.2004.1346015

Filename

1346015