Title :
Wideband direction-of-arrival estimation using frequency-domain frequency-invariant beamformers: an analysis of performance
Author :
Do-Hong, Tuan ; Demmel, Franz ; Russer, Peter
Author_Institution :
Inst. for High-Frequency Eng., Munich Univ. of Technol., Germany
Abstract :
This paper presents an extension of the wideband direction-of-arrival estimation method using frequency-domain frequency-invariant beamformers (Do-Hong et al., 2003) with an analysis of performance. An asymptotic expression for the root-mean-square error and a resolution threshold of signal-to-noise-ratio for resolving directions of sources are shown. A comparison of analysis and simulation as well as numerical results are also presented.
Keywords :
adaptive antenna arrays; antenna theory; array signal processing; direction-of-arrival estimation; frequency-domain analysis; radio direction-finding; direction-of-arrival; frequency-domain beamformers; frequency-invariant beamformers; resolution threshold; root-mean-square error; signal-to-noise-ratio; smart antennas; wideband DOA estimation; Analytical models; Bandwidth; Broadband antennas; Direction of arrival estimation; Frequency domain analysis; Frequency estimation; Multiple signal classification; Performance analysis; Signal resolution; Wideband; Beamforming; DOA; direction-of-arrival; estimation; smart antennas;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2004.832633
