Title :
Algorithm of Two-Dimensional DOA Estimation for Correlative Signals
Author :
Su-ling, Wang ; Ran, Li
Author_Institution :
Sch. of Electr. Eng. & Autom., Henan Polytech. Univ., Jiaozuo, China
Abstract :
Estimation of Direction of Arrival (DOA) signal is one important function of adoptive antenna. The fuzzy angle in correlative signal environment of DOA estimation could seriously affect the estimation precision. Based on 1-D spatial smoothing theory the paper analyzes the algorithm for 2-D angle estimation in correlative source environment of hexagonal array and simulations were carried out. A method transforming the hexagonal array to two mutual-vertical sub arrays successfully applied spatial smoothing technique to 2-D angle estimation of hexagonal array. Simulation results shows that the transforming method can eliminate the fuzzy angle in coherent signal environment.
Keywords :
antenna arrays; array signal processing; direction-of-arrival estimation; fuzzy set theory; signal classification; smoothing methods; 1D spatial smoothing theory; antenna array; correlative signals; direction of arrival; fuzzy angle; hexagonal array; multisignal classification; mutual-vertical sub arrays; two-dimensional DOA estimation; Antennas; Arrays; Covariance matrix; Estimation; Matrix decomposition; Smoothing methods; Transmission line matrix methods; Antenna array; MUSIC algorithm; Spatial Spectrum; spatial smoothing;
Conference_Titel :
Intelligent System Design and Engineering Application (ISDEA), 2010 International Conference on
Conference_Location :
Changsha
Print_ISBN :
978-1-4244-8333-4
DOI :
10.1109/ISDEA.2010.100
