Title :
2-D angle estimation with a uniform circular array via RELAX
Author :
Ye, X.D. ; Fang, D.G. ; Sheng, W.X. ; Shahid, N.
Author_Institution :
Dept. of Electr. Eng., Nanjing Univ. of Sci. & Technol., China
fDate :
6/21/1905 12:00:00 AM
Abstract :
A uniform circular array (UCA) is known as a kind of curvilinear array. It uses much fewer elements to estimate two-dimensional (2-D) azimuth-elevation angles than a rectangular array and provides more freedom of resolvable angle dimensions than a uniform linear array (ULA). In this paper, we present a high resolution direction finding method for a UCA. It transforms the UCA from element space to mode space and then incorporates the RELAX algorithm into 2-D angle estimation. Computer simulations show its effectiveness.
Keywords :
antenna arrays; direction-of-arrival estimation; relaxation; 2-D angle estimation; 2-D azimuth-elevation angles; RELAX algorithm; computer simulations; curvilinear array; direction of arrival; high resolution direction finding method; mode space; relaxation algorithm; resolvable angle dimensions; uniform circular array; Application software; Azimuth; Computer simulation; Direction of arrival estimation; Iterative algorithms; Maximum likelihood estimation; Mobile communication; Parameter estimation; Phased arrays; Two dimensional displays;
Conference_Titel :
Computational Electromagnetics and Its Applications, 1999. Proceedings. (ICCEA '99) 1999 International Conference on
Print_ISBN :
0-7803-5802-3
DOI :
10.1109/ICCEA.1999.825098
