Title :
A study on the experimental sector switched antenna by DOA estimation for mobile video transmission
Author :
Ktshigami, T. ; Fukagawa, Takashi ; Hasegawa, Makoto ; Asanuma, Tsutomu ; Ikeda, Hikaru
Author_Institution :
Matsushita Res. Inst. Tokyo Inc., Kawasaki, Japan
Abstract :
In the application of a simplified adaptive antenna system in the mobile transmission of wideband digital signal that enables the transmission of MPEG-2 quality video, we have developed a sector switched antenna in which sector selection is based on the result of direction of arrival (DOA) estimation. We show the configuration of our developed experimental antenna and the results of performance testing of DOA estimation in an anechoic chamber and outdoor environments. In the anechoic chamber, DOA estimation error was less than a few degrees and that the minimum resolution angle between two incident waves was about 20° at an S/N=20 dB using an experimental 4-element array. In outdoor environments, DOA tracking performance was good in a line-of-sight (LOS) environment
Keywords :
adaptive antenna arrays; direction-of-arrival estimation; land mobile radio; microstrip antenna arrays; radio tracking; visual communication; 4-element array; DOA estimation; DOA tracking performance; LOS; MPEG-2 quality video; direction of arrival; experimental sector switched antenna; line-of-sight environment; mobile video transmission; outdoor environments; performance testing; simplified adaptive antenna system; Adaptive arrays; Adaptive systems; Anechoic chambers; Broadband antennas; Direction of arrival estimation; Directive antennas; Estimation error; Mobile antennas; Testing; Transmitting antennas;
Conference_Titel :
Vehicular Technology Conference Proceedings, 2000. VTC 2000-Spring Tokyo. 2000 IEEE 51st
Conference_Location :
Tokyo
Print_ISBN :
0-7803-5718-3
DOI :
10.1109/VETECS.2000.851283
