DOA Estimation for a Multi-Frequency Signal Using widely-spaced Sensors

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Title: DOA Estimation for a Multi-Frequency Signal Using widely-spaced Sensors
Authors: Ballal, Tarig
Bleakley, Chris J.
Permanent link: http://hdl.handle.net/10197/7035
Date: 27-Aug-2010
Abstract: The estimation of sub-sample time-delay from the phase of the cross-power spectrum (CPS) of signals received by widely-spaced receivers requires unwrapped phase. Conventional phase unwrapping methods require a continuous CPS that starts at zero frequency or at a frequency with a known unwrapped phase. A novel phase unwrapping method is proposed herein that is capable of carrying out the task without these requirements. The proposed method is applied to direction-of-arrival (DOA) estimation for a bandpass signal—a case that conventional methods are unable to handle. Analytical performance and experimental results confirm the effectiveness of the proposed method.
Funding Details: Science Foundation Ireland
Type of material: Conference Publication
Publisher: IEEE
Copyright (published version): 2010 EURASIP
Keywords: Direction-of-arrival;Phase unwrapping;Cross-power spectrum (CPS)
Language: en
Status of Item: Peer reviewed
Conference Details: 18th European Signal Processing Conference (EUSIPCO-2010), Aalborg, Denmark, 23 - 27 August, 2010
Appears in Collections:Computer Science Research Collection
CASL Research Collection

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