Title :
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
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;
Conference_Titel :
Communications, Circuits and Systems, 2004. ICCCAS 2004. 2004 International Conference on
Conference_Location :
Chengdu
Print_ISBN :
0-7803-8647-7
DOI :
10.1109/ICCCAS.2004.1346015
