Abstract
In this paper, the closed-form Cramér-Rao bound (CRB) is derived for direction-of-arrival (DOA) estimation under the unconditional model assumption (UMA) for uncorrelated wideband sources. The existence of the CRB is proved based on the rank condition of the introduced augmented co-array manifold (ACM) matrix. The resolution capacity is then investigated and it is found that the number of resolvable sources for the wideband model can exceed the limitation in the narrowband case without requirement of any special array structure.
Original language | English |
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Title of host publication | GlobalSIP 2019 - 7th IEEE Global Conference on Signal and Information Processing, Proceedings |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
ISBN (Electronic) | 9781728127231 |
DOIs | |
Publication status | Published - Nov 2019 |
Event | 7th IEEE Global Conference on Signal and Information Processing, GlobalSIP 2019 - Ottawa, Canada Duration: 11 Nov 2019 → 14 Nov 2019 |
Publication series
Name | GlobalSIP 2019 - 7th IEEE Global Conference on Signal and Information Processing, Proceedings |
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Conference
Conference | 7th IEEE Global Conference on Signal and Information Processing, GlobalSIP 2019 |
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Country/Territory | Canada |
City | Ottawa |
Period | 11/11/19 → 14/11/19 |
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Liang, Y., Shen, Q., Cui, W., & Liu, W. (2019). Cramér-rao bound for wideband DOA estimation with uncorrelated sources. In GlobalSIP 2019 - 7th IEEE Global Conference on Signal and Information Processing, Proceedings Article 8969279 (GlobalSIP 2019 - 7th IEEE Global Conference on Signal and Information Processing, Proceedings). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/GlobalSIP45357.2019.8969279