DOA Estimation of Noncircular Signals Using Quaternions

Autor:	Tianzhen Meng, Minjie Wu, Naichang Yuan
Jazyk:	angličtina
Rok vydání:	2017
Předmět:	Electrical engineering. Electronics. Nuclear engineering TK1-9971 Cellular telephone services industry. Wireless telephone industry HE9713-9715
Zdroj:	International Journal of Antennas and Propagation, Vol 2017 (2017)
Druh dokumentu:	article
ISSN:	1687-5869 1687-5877
DOI:	10.1155/2017/9848169
Popis:	The two-dimensional (2D) direction-of-arrival (DOA) estimation problem for noncircular signals using quaternions is considered in this paper. In the framework of quaternions, we reconstruct the conjugate augmented output vector which reduces the dimension of covariance matrix. Compared with existing methods, the proposed one has two main advantages. Firstly, the estimation accuracy is higher since quaternions have stronger orthogonality. Secondly, the dimension of covariance matrix is reduced by half which decreases the computational complexity. Simulation results are presented verifying the efficacy of the algorithm.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/e6dbd1bdbd214d89abd2f85a723ff185 Zobrazit plný text záznamu Plný text View record in DOAJ