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dc.contributor.authorGodbaz, John Peter
dc.contributor.authorCree, Michael J.
dc.contributor.authorDorrington, Adrian A.
dc.date.accessioned2012-10-04T20:58:22Z
dc.date.available2012-10-04T20:58:22Z
dc.date.copyright2012-01-23
dc.date.issued2012
dc.identifier.citationGodbaz, J. P., Cree, M. J., & Dorrington, A. A. (2012).Understanding and ameliorating non-linear phase and amplitude responses in AMCW Lidar. Remote Sensing, 4(1), 21-42.en_NZ
dc.identifier.issn2072-4292
dc.identifier.urihttp://hdl.handle.net/10289/6683
dc.description.abstractAmplitude modulated continuous wave (AMCW) lidar systems commonly suffer from non-linear phase and amplitude responses due to a number of known factors such as aliasing and multipath inteference. In order to produce useful range and intensity information it is necessary to remove these perturbations from the measurements. We review the known causes of non-linearity, namely aliasing, temporal variation in correlation waveform shape and mixed pixels/multipath inteference. We also introduce other sources of non-linearity, including crosstalk, modulation waveform envelope decay and non-circularly symmetric noise statistics, that have been ignored in the literature. An experimental study is conducted to evaluate techniques for mitigation of non-linearity, and it is found that harmonic cancellation provides a significant improvement in phase and amplitude linearity.en_NZ
dc.format.mimetypeapplication/pdf
dc.language.isoen
dc.publisherMDPIen_NZ
dc.relation.ispartofRemote Sensing
dc.rights© 2012 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/.)en_NZ
dc.subjectphase linearityen_NZ
dc.subjectAMCWen_NZ
dc.subjectLidaren_NZ
dc.subjectHarmonic cancelationen_NZ
dc.subjectHeterodyningen_NZ
dc.subjectIrregular phase stepsen_NZ
dc.subjectCrosstalken_NZ
dc.subjectMultipathen_NZ
dc.subjectNon-circularly-symmetric noiseen_NZ
dc.titleUnderstanding and ameliorating non-linear phase and amplitude responses in AMCW Lidaren_NZ
dc.typeJournal Articleen_NZ
dc.identifier.doi10.3390/rs4010021en_NZ
dc.relation.isPartOfRemote Sensingen_NZ
pubs.begin-page21en_NZ
pubs.elements-id37159
pubs.end-page42en_NZ
pubs.issue1en_NZ
pubs.volume4en_NZ


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