Publications [#283502] of Qing H. Liu

Papers Published

1. Liu, Y; Xiong, X; Chen, S; Liu, QH; Liao, K; Zhu, J, Direction-of-arrival estimation for closely coupled dipoles using embedded pattern diversity, Isap 2013 Proceedings of the 2013 International Symposium on Antennas and Propagation, vol. 1 (December, 2013), pp. 467-469
   (last updated on 2023/08/08)

   Abstract:
   Direction-of-arrival (DOA) estimation for very closely spaced dipoles (no larger than 0.1 wavelength) is considered. In contrast to reducing the mutual coupling effect in conventional DOA methods, we demonstrate in this work that the mutual coupling can produce amplitude and phase difference of embedded element patterns, which can be utilized to greatly improve DOA estimation performance by incorporating the pattern diversity into the estimation algorithm. Simulation results show that two coupled dipoles achieve much higher DOA estimation accuracy than the ones without mutual coupling (for example, with the basic multiple signal classification (MUSIC) algorithm, the two coupled dipoles can achieve the root-mean-squared error (RMSE) of 1° within 120° arriving angle range for the spacing of 0.1 wavelength and RMSE of 2° within 90° range for only 0.02 wavelength, at moderately high SNR and sampling condition) © 2013 Antenna Society of the Chinese Institute of Electronics.