Two sensor direction of arrival estimation for complex scattering objects

Dumidu Talagala (ANU)

APPLIED SIGNAL PROCESSING SERIES

DATE: 2012-06-28
TIME: 11:00:00 - 12:00:00
LOCATION: RSISE Seminar Room, ground floor, building 115, cnr. North and Daley Roads, ANU
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ABSTRACT:
Two sensor broadband direction of arrival (DOA) estimation suffers from an inherent lack of dimensionality due to having just two sensors, yet complex scattering objects (e.g. the human auditory system) introduce diversity in the frequency domain which can be used to overcome this problem. Existing non-statistical DOA estimation techniques are not readily applicable to complex scattering systems or are unable to exploit these forms of diversity. We propose a DOA estimation technique based on signal subspace decomposition, where the broadband signals are split into multiple subband signals and combined to form produce a DOA estimate. The constraints are discussed and performance is compared with existing techniques using the head related transfer function (HRTF) data of a human subject.
BIO:
Dumidu is a PhD student in the ASP group.