Title :
UCA gain/phase calibration in the presence of multipath based on weighted subspace fitting
Author :
Deli, Chen ; Cong, Zhang ; Huamin, Tao ; Huanzhang, Lu
Author_Institution :
Dept. of Electron. Sci. & Eng., Nat. Univ. of Defense Technol., Changsha
Abstract :
In array signal processing, high-resolution direction-of-arrival (DOA) estimation algorithms are known to be sensitive to system errors. In practice, the system should be properly calibrated before DOA estimation. In this paper, a multidimensional calibration method of gain and phase errors of uniform circular array (UCA) based on the weighted subspace fitting (WSF) scheme is proposed in the presence of multipath propagation. Simulation results are provided to demonstrate the performance of proposed algorithm.
Keywords :
array signal processing; direction-of-arrival estimation; array signal processing; gain calibration; gain error; high-resolution direction-of-arrival estimation; multidimensional calibration method; multipath propagation; phase calibration; phase error; uniform circular array; weighted subspace fitting; Array signal processing; Automation; Calibration; Degradation; Direction of arrival estimation; Multidimensional systems; Phase estimation; Phased arrays; Sensor arrays; Signal processing algorithms;
Conference_Titel :
Information and Automation, 2008. ICIA 2008. International Conference on
Conference_Location :
Changsha
Print_ISBN :
978-1-4244-2183-1
Electronic_ISBN :
978-1-4244-2184-8
DOI :
10.1109/ICINFA.2008.4608214
