Title :
An analysis of direction-of-arrival estimation for closely spaced wideband sources in direction finding smart antennas
Author :
Do-Hong, Tuan ; Russer, Peter
Author_Institution :
Inst. for High-Frequency Eng., Munich Univ. of Technol., Germany
Abstract :
This paper presents an analysis of direction-of-arrival estimation for closely spaced wideband sources in direction finding smart antennas. The relation between array manifold and source separation is derived. The analysis is applied for wideband farfield sources received by an arbitrary array of omnidirectional antenna elements. This analysis can also be applied for both one-dimensional (1D) estimation and two-dimensional (2D) estimation. Simulation is performed for comparison to analysis results, and it is shown that the analysis and simulation results are similar for the spectra of signals, the resolution threshold and minimum separation of sources.
Keywords :
adaptive antenna arrays; array signal processing; direction-of-arrival estimation; mobile radio; radio direction-finding; DOA estimation; array manifold; direction finding smart antennas; direction-of-arrival estimation; farfield sources; future generation wireless communication; minimum source separation; mobile communication; omnidirectional antenna elements; resolution threshold; signal spectra; wideband sources; Analytical models; Antenna arrays; Broadband antennas; Direction of arrival estimation; Directive antennas; Performance analysis; Receiving antennas; Signal analysis; Signal resolution; Source separation;
Conference_Titel :
Radio and Wireless Conference, 2002. RAWCON 2002. IEEE
Print_ISBN :
0-7803-7458-4
DOI :
10.1109/RAWCON.2002.1030114
