Title :
A novel signal converter assisted simple DOA estimation method for uniform circular smart antenna
Author :
Lihua, Li ; Jing, Wu ; Ping, Zhang
Author_Institution :
Wireless Tech. Innovation Lab., Beijing Univ. of Posts & Telecommun., China
Abstract :
The practical DOA estimation method for uniform circular smart antenna (UCSA) is considered. DOA estimation with unitary root-MUSIC algorithm, which exploits a real-valued eigendecomposition, greatly reduces its computational complexity. However, its application is limited to the uniform linear smart antenna (ULSA). In this contribution, we propose a novel signal converter through which the low cost unitary root-MUSIC algorithm can be exploited for uniform circular smart antenna. The converter is easy to implement by IFFT transformation and real-valued weighting. Simulation results show this method is feasible to provide high resolution and high capacity.
Keywords :
Monte Carlo methods; adaptive antenna arrays; computational complexity; direction-of-arrival estimation; linear antenna arrays; DOA estimation method; IFFT transformation; computational complexity reduction; direction of arrival; real-valued eigendecomposition; real-valued weighting; signal converter; uniform circular smart antenna; uniform linear smart antenna; unitary root-MUSIC algorithm; Costs; Direction of arrival estimation; Geometry; Interference; Performance gain; Receiving antennas; Signal resolution; Smoothing methods; Spatial resolution; Telecommunications;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2003. PIMRC 2003. 14th IEEE Proceedings on
Print_ISBN :
0-7803-7822-9
DOI :
10.1109/PIMRC.2003.1259189
