Persistent Link:
http://hdl.handle.net/10150/609929
Title:
Acquisition Processing for the TDRSS Simulator
Author:
Heitzman, R. E.; Horwood, D. F.; Rose, B. E.
Affiliation:
Hughes Aircraft Company
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 TDRSS simulator forward link acquisition process requires that the epoch and frequency of the spreading code be acquired, and that the incoming carrier be phase locked. The time required for these two acquisitions must meet a specification of 20 seconds for S band and 4 seconds for K band operation. Calculations for the time required to acquire the carrier show that with the allowable sweep rates and frequency uncertainties the acquisition time specifications cannot be met with conventional sweep lock circuitry. Parallel processing is possible, but the requirements on local frequency control become difficult, and the additional circuits required make this approach unattractive. Because of these considerations, a frequency control strategy was developed which reduces the carrier acquisition time to fractions of a second. The specified acquisition time can then be allotted almost entirely to the spreading code acquisition process. This strategy is described in detail, including an experimental verification of the technique. The technique has an additional advantage of eliminating false lock to data sidebands in the carrier loop.
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.titleAcquisition Processing for the TDRSS Simulatoren_US
dc.contributor.authorHeitzman, R. E.en
dc.contributor.authorHorwood, D. F.en
dc.contributor.authorRose, B. E.en
dc.contributor.departmentHughes Aircraft Companyen
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 TDRSS simulator forward link acquisition process requires that the epoch and frequency of the spreading code be acquired, and that the incoming carrier be phase locked. The time required for these two acquisitions must meet a specification of 20 seconds for S band and 4 seconds for K band operation. Calculations for the time required to acquire the carrier show that with the allowable sweep rates and frequency uncertainties the acquisition time specifications cannot be met with conventional sweep lock circuitry. Parallel processing is possible, but the requirements on local frequency control become difficult, and the additional circuits required make this approach unattractive. Because of these considerations, a frequency control strategy was developed which reduces the carrier acquisition time to fractions of a second. The specified acquisition time can then be allotted almost entirely to the spreading code acquisition process. This strategy is described in detail, including an experimental verification of the technique. The technique has an additional advantage of eliminating false lock to data sidebands in the carrier loop.en
dc.description.sponsorshipInternational Foundation for Telemeteringen
dc.identifier.issn0884-5123-
dc.identifier.issn0074-9079-
dc.identifier.urihttp://hdl.handle.net/10150/609929-
dc.identifier.journalInternational Telemetering Conference Proceedingsen
dc.typetexten
dc.typeProceedingsen
dc.relation.urlhttp://www.telemetry.org/en
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