Title :
Azimuth and elevation estimation for multipath signals exploiting cyclostationarity and temporal smoothing technology
Author :
Jiang, Hong ; Wang, Shu-xun
Author_Institution :
Coll. of Commun. Eng., Jilin Univ., Changchun, China
Abstract :
The two-dimensional (2-D) multipath direction of arrival (DOA) estimation algorithm using a planar array is provided exploiting higher order cyclostationarity (HOCS) and temporal smoothing technology. Based on real mobile communication channel characteristics, in which the multipath reflection coefficient changes more rapidly than their DOAs, the temporal smoothing is applied to resolve 2-D DOAs of coherent signals. Compared with all the previous multipath azimuth/elevation angle estimation methods, the proposed method achieves further array aperture extension, as well as its powerful capability of noise-suppression and signal-selectivity due to the use of HOCS.
Keywords :
aperture antennas; array signal processing; direction-of-arrival estimation; interference suppression; mobile communication; multipath channels; planar antenna arrays; smoothing methods; 2-D DOA algorithm; HOCS exploitation; array aperture extension; azimuth angle estimation; coherent signal-selectivity; elevation angle estimation; higher order cyclostationarity; mobile communication channel; multipath reflection coefficient; noise-suppression; planar array; temporal smoothing technology; two-dimensional direction-of-arrival estimation; Acoustic reflection; Apertures; Azimuth; Direction of arrival estimation; Mobile communication; Sensor arrays; Signal resolution; Smoothing methods; Spatial resolution; Two dimensional displays; 2-D DOA estimation; array; cyclostationarity; signal processing for communication; temporal smoothing;
Conference_Titel :
Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications, 2005. MAPE 2005. IEEE International Symposium on
Print_ISBN :
0-7803-9128-4
DOI :
10.1109/MAPE.2005.1618104
