Show simple item record

dc.contributor.advisorMarcellin, Michaelen_US
dc.contributor.authorDowd, Andrew Vernon, 1962-
dc.creatorDowd, Andrew Vernon, 1962-en_US
dc.date.accessioned2013-04-03T13:03:19Z
dc.date.available2013-04-03T13:03:19Z
dc.date.issued1991en_US
dc.identifier.urihttp://hdl.handle.net/10150/277840
dc.description.abstractWhen applied to radio astronomy instrumentation, practical limitations on circuitry restrict digital correlators to extremely coarse quantization. This paper examines non-linear effects of modified two-bit quantization on astronomical correlators. Equations are presented to correct quantization bias in estimates. The degradation due to quantization is given and plotted. The necessary tolerance in threshold levels is established to avoid systematic errors in power spectrum measurement. An alternative method of measuring power is derived that reduces parameter sensitivity.
dc.language.isoen_USen_US
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.subjectEngineering, Electronics and Electrical.en_US
dc.subjectPhysics, Astronomy and Astrophysics.en_US
dc.titleStatistical considerations of modified two bit sampling for astronomical correlatorsen_US
dc.typetexten_US
dc.typeThesis-Reproduction (electronic)en_US
thesis.degree.grantorUniversity of Arizonaen_US
thesis.degree.levelmastersen_US
dc.identifier.proquest1343593en_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.disciplineElectrical and Computer Engineeringen_US
thesis.degree.nameM.S.en_US
dc.identifier.bibrecord.b2679424xen_US
refterms.dateFOA2018-06-15T21:48:02Z
html.description.abstractWhen applied to radio astronomy instrumentation, practical limitations on circuitry restrict digital correlators to extremely coarse quantization. This paper examines non-linear effects of modified two-bit quantization on astronomical correlators. Equations are presented to correct quantization bias in estimates. The degradation due to quantization is given and plotted. The necessary tolerance in threshold levels is established to avoid systematic errors in power spectrum measurement. An alternative method of measuring power is derived that reduces parameter sensitivity.


Files in this item

Thumbnail
Name:
azu_td_1343593_sip1_m.pdf
Size:
2.566Mb
Format:
PDF

This item appears in the following Collection(s)

Show simple item record