naa a22 4500 510796060 CHVBK 20180411083337.0 cr unu---uuuuu 180411e20130201xx s 000 0 eng 10.1007/s11277-012-0544-3 doi (NATIONALLICENCE)springer-10.1007/s11277-012-0544-3 CRLB for DOA Estimation in Gaussian and Non-Gaussian Mixed Environments [Elektronische Daten] [Jiyan Huang, Qun Wan] The determination of Cramer-Rao lower bound (CRLB) as an optimality criterion for the problem of Direction-of-arrival (DOA) estimation is a very important issue. Several CRLBs on DOA estimation have been derived for Gaussian noise. However, a practical channel is affected by not only Gaussian background noise but also non-Gaussian noise such as impulsive interference. This paper derives the deterministic CRLB for Gaussian and non-Gaussian mixed environments. Since non-parametric kernel method is used to build the probability density function (PDF) of non-Gaussian noise, the CRLB derived is suitable for various noise distributions with or without symmetric PDF. The relationship between the CRLB for Gaussian noise and the proposed CRLB is also investigated. Theoretical analysis shows that the proposed CRLB provides a unified representation for both the cases of Gaussian and mixed environments. Computer simulations are included to verify the derived CRLB in different noise environments. Springer Science+Business Media, LLC., 2012 Direction-of-arrival nationallicence Cramer-Rao lower bound nationallicence Non-Gaussian noise nationallicence Non-parametric kernel method nationallicence Huang Jiyan Department of Electronic Engineering, University of Electronic Science and Technology of China, 610054, Chengdu, China aut Wan Qun Department of Electronic Engineering, University of Electronic Science and Technology of China, 610054, Chengdu, China aut Wireless Personal Communications Springer US; http://www.springer-ny.com 68/4(2013-02-01), 1673-1688 0929-6212 68:4<1673 2013 68 11277 https://doi.org/10.1007/s11277-012-0544-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11277-012-0544-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Huang Jiyan Department of Electronic Engineering, University of Electronic Science and Technology of China, 610054, Chengdu, China aut NATIONALLICENCE 700 1- Wan Qun Department of Electronic 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 68/4(2013-02-01), 1673-1688 0929-6212 68:4<1673 2013 68 11277 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer