Title :
Effect of mixer phase distortions on the DOA tracking algorithm for an adaptive antenna array
Author :
Hou, Weiguang ; Kwon, Hyuck M.
Author_Institution :
Dept. of Electr. & Comput. Eng., Wichita State Univ., KS, USA
Abstract :
The effect of the mixer phase distortions on the adaptive direction-of-arrival (DOA) tracking algorithm is investigated. The study shows that the DOA tracking algorithm is not sensitive to the mixer phase distortions. Hence the mixer phase calibration is not required for a system applying the DOA tracking algorithm. The equivalent DOA tracking error due to the mixer phase distortions is derived. Also the performance of the system applying the DOA tracking algorithm is compared with that of the system applying other algorithms in terms of the bit error rate (BER) under additive white Gaussian noise (AWGN) and Rayleigh fading environments. Simulation results are given to support the conclusions
Keywords :
AWGN; Rayleigh channels; adaptive antenna arrays; array signal processing; code division multiple access; direction-of-arrival estimation; error statistics; interference suppression; mixers (circuits); multiuser channels; radio tracking; radiofrequency interference; spread spectrum communication; AWGN; BER; DOA tracking algorithm; DOA tracking error; DS/CDMA system; Rayleigh fading; adaptive antenna array; additive white Gaussian noise; bit error rate; direction-of-arrival tracking; interference suppression; mixer phase distortions; multiple access interference; simulation results; system performance; Adaptive arrays; Antenna arrays; Frequency; Interference suppression; Multiaccess communication; Multiple access interference; Phase distortion; Phased arrays; Receiving antennas; System performance;
Conference_Titel :
Vehicular Technology Conference, 2001. VTC 2001 Spring. IEEE VTS 53rd
Conference_Location :
Rhodes
Print_ISBN :
0-7803-6728-6
DOI :
10.1109/VETECS.2001.944841
