Phase-Difference Ambiguity Resolution for a Single-Frequency Signal in the Near-Field Using a Receiver Triplet

Files in This Item:
File Description SizeFormat 
Phase-Difference_Ambiguity_Resolution_for_a_Single-Frequency_Signal.pdf238.49 kBAdobe PDFDownload
Title: Phase-Difference Ambiguity Resolution for a Single-Frequency Signal in the Near-Field Using a Receiver Triplet
Authors: Ballal, Tarig
Bleakley, Chris J.
Permanent link: http://hdl.handle.net/10197/7061
Date: Nov-2010
Abstract: The problem of ambiguity in the phase-difference of a signal received by widely-spaced receivers is considered. It is shown that a collinear receiver triplet with a specific configuration combined with a proposed algorithm can be utilized for phase-difference disambiguation. The identifiability condition is that the difference of the two smaller inter-receiver spacings is not greater than a half-wavelength of the impinging signal and is greater than zero. The effect of the emitter location relative to the receiver array and the effect of noise are studied. Analytic formulae for the MSE (mean squared error) under Gaussian white noise are obtained and are used to directly determine performance versus SNR (signal-to-noise ratio) given the emitter location and the receiver configuration. Performance is found to exhibit an SNR threshold effect that depends on the emitter location and the sensor configuration. The analytic performance predictions are found to be close to the performance obtained in simulation.
Type of material: Journal Article
Publisher: IEEE
Copyright (published version): 2010 IEEE
Keywords: Direction-of-arrival;DOA;Phase-difference ambiguity;TDOA;Time-delay estimation
DOI: 10.1109/TSP.2010.2062180
Language: en
Status of Item: Peer reviewed
Appears in Collections:Computer Science Research Collection

Show full item record

SCOPUSTM   
Citations 50

5
Last Week
0
Last month
checked on Jun 22, 2018

Download(s) 50

52
checked on May 25, 2018

Google ScholarTM

Check

Altmetric


This item is available under the Attribution-NonCommercial-NoDerivs 3.0 Ireland. No item may be reproduced for commercial purposes. For other possible restrictions on use please refer to the publisher's URL where this is made available, or to notes contained in the item itself. Other terms may apply.