Title :
An improved DOA estimation with sensor gain and phase perturbations for CDMA system
Author :
Yang, Wei ; Li, Shiming ; Tan, Zhenhui
Author_Institution :
Sch. of Electron. & Inf. Eng., Northern Jiaotong Univ., Beijing, China
Abstract :
An improved direction of arrival (DOA) estimation algorithm with sensor gains and phase uncertainties for synchronous CDMA system with decorrelator is presented. Through decorrelating processing DOAs of the desired users can be estimated independently and all other resolved signal interferences are eliminated. Emphasis is directed to applications in which sensor gain and phrase are perturbed that are often happened actually. It is shown that improved DOA estimation can be achieved for decoupled signals by gain and phase pre-estimation procedures.
Keywords :
antenna arrays; array signal processing; code division multiple access; decorrelation; direction-of-arrival estimation; interference (signal); DOA; decorrelator; direction of arrival estimation; phase perturbations; phase uncertainties; sensor gain; signal interference; synchronous CDMA system; Code division multiplexing; Decorrelation; Direction of arrival estimation; Interference elimination; Multiaccess communication; Phase estimation; Sensor systems; Signal processing; Signal resolution; Uncertainty;
Conference_Titel :
Communication Technology Proceedings, 2003. ICCT 2003. International Conference on
Print_ISBN :
7-5635-0686-1
DOI :
10.1109/ICCT.2003.1209882
