@inproceedings{b23423940ce147e29c3fdfc12fedce76,
title = "2-D Wideband DOA Estimation with Circular Arrays Based on the Difference Co-Array Concept",
abstract = "Two-dimensional (2-D) direction of arrival (DOA) estimation with a circular array based on the difference co-array has attracted considerable attention in past years. In this paper, the difference co-array position set of a circular array with arbitrary sensor arrangement is derived, and condition under which the maximum number of virtual co-array sensors can be provided by a circular array is presented. Then, an augmented uniform circular array (AUCA) is proposed, providing the maximum number of DOFs for arbitrary number of physical sensors. Compressive sensing based focusing method for the one-dimensional case is extend to 2-D wideband DOA estimation, where focusing on the difference co-array is adopted for performance improvement. Simulations show that better performance can be achieved by our proposed AUCA.",
keywords = "2-D DOA estimation, circular array, difference co-array, non-uniform, wideband",
author = "Hantian Wu and Qing Shen and Wei Liu and Zheng Fu and Chenxi Liao",
note = "Publisher Copyright: {\textcopyright} 2024 IEEE.; 2024 IEEE International Symposium on Circuits and Systems, ISCAS 2024 ; Conference date: 19-05-2024 Through 22-05-2024",
year = "2024",
month = may,
doi = "10.1109/ISCAS58744.2024.10558313",
language = "English",
series = "Proceedings - IEEE International Symposium on Circuits and Systems",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
booktitle = "ISCAS 2024 - IEEE International Symposium on Circuits and Systems",
}