Title :
An Improved Fast Approach for DOA Tracking Estimation
Author :
Wei, Cheng ; Rui-juan, Yang ; Mei-rong, Huang ; Zhao-yong, Fan
Author_Institution :
Air Force Radar Acad., Wuhan, China
fDate :
March 31 2009-April 2 2009
Abstract :
Smart antenna can improve the capacity and anti-jamming performance of DS/CDMA system, but some approach of DOA estimation canpsilat be calculated in real time because of complexity of calculation. Two low complexity approach of DOA tracking estimation are studied in this paper, a new improved fast approach of DOA tracking estimation is presented based on double beam and changeable step, the simulation results reveal that the resolution of DOA estimation is higher than the other two approaches in evidence, furthermore, its computation complexity donpsilat increase significantly.
Keywords :
adaptive antenna arrays; code division multiple access; computational complexity; direction-of-arrival estimation; spread spectrum communication; DOA tracking estimation; DS-CDMA system; calculation complexity; computation complexity; direct sequence code division multiple access; direction-of-arrival estimation; smart antenna; Computational modeling; Computer science; Direction of arrival estimation; Mobile antennas; Mobile communication; Multiaccess communication; Radar antennas; Radar tracking; Real time systems; Sampling methods;
Conference_Titel :
Computer Science and Information Engineering, 2009 WRI World Congress on
Conference_Location :
Los Angeles, CA
Print_ISBN :
978-0-7695-3507-4
DOI :
10.1109/CSIE.2009.195
