Phase-Difference Ambiguity Resolution for a Single-Frequency Signal
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|Title:||Phase-Difference Ambiguity Resolution for a Single-Frequency Signal||Authors:||Ballal, Tarig
Bleakley, Chris J.
|Permanent link:||http://hdl.handle.net/10197/7127||Date:||Dec-2008||Abstract:||In this letter, we propose a novel method to disambiguate the phase-difference of a single-frequency signal observed between a pair of spatially separated sensors, with inter-sensor spacing exceeding half the wavelength of the signal, lambda over two. We mathematically prove that, in a noiseless case, the true phase-difference can unambiguously be estimated utilizing a third collinear sensor, provided that the absolute difference between the two smaller inter-sensor spacings does not exceed lambda over two. The performance of the method is characterized by estimating the probability of failure in noisy cases.||Type of material:||Journal Article||Publisher:||IEEE||Copyright (published version):||2008 IEEE||Keywords:||Phase-difference unwrapping; Sensor arrays; Time-delay estimation||DOI:||10.1109/LSP.2008.2005439||Language:||en||Status of Item:||Peer reviewed|
|Appears in Collections:||Computer Science Research Collection|
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