naa a22 4500 510792103 CHVBK 20180411083323.0 cr unu---uuuuu 180411e20130801xx s 000 0 eng 10.1007/s11277-012-0909-7 doi (NATIONALLICENCE)springer-10.1007/s11277-012-0909-7 Low-Complexity Estimation of the Nominal Azimuth and Elevation for Incoherently Distributed Sources [Elektronische Daten] [Jie Zhou, Zhi Zheng, Guangjun Li] This paper develops a new technique for estimating the two-dimensional direction-of-arrivals (DOAs) of incoherently distributed (ID) sources, which can estimate effectively the nominal azimuth and nominal elevation of multiple ID sources at the cost of less computational complexity. Using a pair of parallel uniform linear arrays (ULAs), a new approach for 2D DOA estimation of multiple ID sources is proposed. The proposed method firstly estimates the nominal elevation by the modified TLS-ESPRIT method, which is based on the approximate rotational invariance property with respect to the nominal elevation between two closely parallel ULAs. And then with the help of the nominal elevation estimates, the nominal azimuth is estimated by one-dimensional searching. Without multi-dimensional searching, the proposed method has significantly reduced the computational cost compared with the existing methods. Simulation results indicate that the proposed method can exhibit a good performance and be applied to the multisource scenario where different sources may have different angular distribution shapes. Springer Science+Business Media New York, 2012 Incoherently distributed sources nationallicence Nominal azimuth nationallicence Nominal elevation nationallicence Uniform linear array (ULA) nationallicence Modified TLS-ESPRIT nationallicence Zhou Jie School of Communication and Information Engineering, University of Electronic Science and Technology of China, 610054, Chengdu, China aut Zheng Zhi School of Communication and Information Engineering, University of Electronic Science and Technology of China, 610054, Chengdu, China aut Li Guangjun School of Communication and Information Engineering, University of Electronic Science and Technology of China, 610054, Chengdu, China aut Wireless Personal Communications Springer US; http://www.springer-ny.com 71/3(2013-08-01), 1777-1793 0929-6212 71:3<1777 2013 71 11277 https://doi.org/10.1007/s11277-012-0909-7 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11277-012-0909-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Zhou Jie School of Communication and Information Engineering, University of Electronic Science and Technology of China, 610054, Chengdu, China aut NATIONALLICENCE 700 1- Zheng Zhi School of Communication and Information Engineering, University of Electronic Science and Technology of China, 610054, Chengdu, China aut NATIONALLICENCE 700 1- Li Guangjun School of Communication and Information Engineering, University of Electronic Science and Technology of China, 610054, Chengdu, China aut NATIONALLICENCE 773 0- Wireless Personal Communications Springer US; http://www.springer-ny.com 71/3(2013-08-01), 1777-1793 0929-6212 71:3<1777 2013 71 11277 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer