Persistent Link:
http://hdl.handle.net/10150/609820
Title:
Correlation Tracking for a Planetary Pointing and Tracking System
Author:
Assefi, Touraj
Affiliation:
California Institute of Technology
Issue Date:
1978-11
Rights:
Copyright © International Foundation for Telemetering
Collection Information:
Proceedings from the International Telemetering Conference are made available by the International Foundation for Telemetering and the University of Arizona Libraries. Visit http://www.telemetry.org/index.php/contact-us if you have questions about items in this collection.
Publisher:
International Foundation for Telemetering
Journal:
International Telemetering Conference Proceedings
Abstract:
The Planetary Pointing and Tracking System (PPTS) being developed at Jet Propulsion Laboratory is intended to provide precision pointing for science platforms on future autonomous planetary spacecraft. Future missions will impose very stringent platform pointing requirements due to low light levels and very high ground tracking rates. An integral part of PPTS is the correlation tracker, which has the potential to revolutionize autonomous guidance. The tracker provides two-axis pointing information concerning the position of the target body. It consists of a large-area charge-coupled device (CCD) imager and a microprocessor to control the CCD scanning function and data processing. The correlation tracker has three modes of operation: track, acquire and map. The track mode performs precision tracking of a target object. This is initiated after a target has been acquired. The map mode determes the centroidal coordinates, magnitude and size of bodies within the optical field of view. To improve precision pointing, various power spectra, such as shot noise and dark current, are derived. The probability of acquiring a target body is a function of signal-to-noise ratio and the noise equivalent angle. Derivations illustrating the application of these concepts are given. A discussion of mission analysis with the Uranian system as a representative example is provided.
Sponsors:
International Foundation for Telemetering
ISSN:
0884-5123; 0074-9079
Additional Links:
http://www.telemetry.org/

Full metadata record

DC FieldValue Language
dc.language.isoen_USen
dc.titleCorrelation Tracking for a Planetary Pointing and Tracking Systemen_US
dc.contributor.authorAssefi, Tourajen
dc.contributor.departmentCalifornia Institute of Technologyen
dc.date.issued1978-11-
dc.rightsCopyright © International Foundation for Telemeteringen
dc.description.collectioninformationProceedings from the International Telemetering Conference are made available by the International Foundation for Telemetering and the University of Arizona Libraries. Visit http://www.telemetry.org/index.php/contact-us if you have questions about items in this collection.en
dc.publisherInternational Foundation for Telemeteringen
dc.description.abstractThe Planetary Pointing and Tracking System (PPTS) being developed at Jet Propulsion Laboratory is intended to provide precision pointing for science platforms on future autonomous planetary spacecraft. Future missions will impose very stringent platform pointing requirements due to low light levels and very high ground tracking rates. An integral part of PPTS is the correlation tracker, which has the potential to revolutionize autonomous guidance. The tracker provides two-axis pointing information concerning the position of the target body. It consists of a large-area charge-coupled device (CCD) imager and a microprocessor to control the CCD scanning function and data processing. The correlation tracker has three modes of operation: track, acquire and map. The track mode performs precision tracking of a target object. This is initiated after a target has been acquired. The map mode determes the centroidal coordinates, magnitude and size of bodies within the optical field of view. To improve precision pointing, various power spectra, such as shot noise and dark current, are derived. The probability of acquiring a target body is a function of signal-to-noise ratio and the noise equivalent angle. Derivations illustrating the application of these concepts are given. A discussion of mission analysis with the Uranian system as a representative example is provided.en
dc.description.sponsorshipInternational Foundation for Telemeteringen
dc.identifier.issn0884-5123-
dc.identifier.issn0074-9079-
dc.identifier.urihttp://hdl.handle.net/10150/609820-
dc.identifier.journalInternational Telemetering Conference Proceedingsen
dc.typetexten
dc.typeProceedingsen
dc.relation.urlhttp://www.telemetry.org/en
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