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Spatial Limits on the Performance of Direction of Arrival Estimation

Williams, Mick; Dickins, Glenn; Kennedy, Rodney; Abhayapala, Thushara


In this paper, we demonstrate that the performance of a direction of arrival (DOA) estimator is fundamentally limited by the size of the region over which we measure a wavefield. That is, even assuming continuous field measurements across the region, we still cannot achieve perfect performance. We use an approach based on modal decomposition of a spatially truncated field, and completely independent of sensor geometry, to derive the Cramér-Rao Bound (CRB) for spatially-limited DOA estimators....[Show more]

CollectionsANU Research Publications
Date published: 2005
Type: Conference paper
Source: Proceedings of the 6th Australian Communications Theory Workshop 2005
DOI: 10.1109/AUSCTW.2005.1624250


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