Title :
DOA ambiguity vs. array configuration for supbspace-based DF methods
Author :
Qi, Ding ; Xianci, Xiao
Author_Institution :
Dept. of Electron. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
In this paper, we investigated the DOA (direction-of-arrival) ambiguity of an arbitrary array for subspace-based DF (direction finding) methods in a wide frequency band. The ambiguities are divided into different orders. First order ambiguity is intensively discussed. A general conclusion on first-order ambiguity vs. array configuration is reached. Especially, the ULA (uniform linear array) and UCA (uniform circular array) are examined. Simulation results are also presented
Keywords :
array signal processing; direction-of-arrival estimation; linear antenna arrays; radio direction-finding; DOA estimation; arbitrary array; array configuration; direction-of-arrival; first-order ambiguity; subspace-based direction finding methods; uniform circular array; uniform linear array; Apertures; Computational modeling; Computer simulation; Covariance matrix; Direction of arrival estimation; Frequency; Narrowband; Signal processing; Space technology; Vectors;
Conference_Titel :
Radar, 1996. Proceedings., CIE International Conference of
Conference_Location :
Beijing
Print_ISBN :
0-7803-2914-7
DOI :
10.1109/ICR.1996.574507
