Persistent Link:
http://hdl.handle.net/10150/613482
Title:
DIGITAL TV TRI-STATE DELTA MODULATION SYSTEM FOR SPACE SHUTTLE KU-BAND DOWNLINK
Author:
Udalov, Sergei; Huth, Gaylord K.; Batson, Bartus H.; Roberts, Donald
Affiliation:
Axiomatix Corp.; NASA/Johnson Space Center
Issue Date:
1982-09
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 anticipated requirements for Shuttle Orbiter Ku-band downlink communication include the transmission of a digital video signal which, in addition to accommodating the black-and-white TV pictures, must also be able to relay to the ground the color TV information encoded in either field-sequential or NTSC color formats. Furthermore, at the expense of additional onboard hardware and increased bandwidth due to the digitization process, the picture privacy feature can be provided for the downlink. Thus, an objective for the future Space Shuttle TV equipment is the development of a digitization technique which is not only compatible with data rates in the range of 20 -30 Mbps, but also provides good quality pictures. This paper desribes a tri-state delta modulation/demodulation (TSDM) technique which is a good compromise between implementation complexity and performance. The salient feature of TSDM is that it provides for efficient run-length encoding of constant-intensity segments of a TV picture. Axiomatix has developed a hardware implementation of a highspeed TSDM transmitter and receiver for black-and-white TV or field-sequential color or NTSC format color. The hardware aspects of this TSDM are discussed in the paper also.
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.titleDIGITAL TV TRI-STATE DELTA MODULATION SYSTEM FOR SPACE SHUTTLE KU-BAND DOWNLINKen_US
dc.contributor.authorUdalov, Sergeien
dc.contributor.authorHuth, Gaylord K.en
dc.contributor.authorBatson, Bartus H.en
dc.contributor.authorRoberts, Donalden
dc.contributor.departmentAxiomatix Corp.en
dc.contributor.departmentNASA/Johnson Space Centeren
dc.date.issued1982-09-
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 anticipated requirements for Shuttle Orbiter Ku-band downlink communication include the transmission of a digital video signal which, in addition to accommodating the black-and-white TV pictures, must also be able to relay to the ground the color TV information encoded in either field-sequential or NTSC color formats. Furthermore, at the expense of additional onboard hardware and increased bandwidth due to the digitization process, the picture privacy feature can be provided for the downlink. Thus, an objective for the future Space Shuttle TV equipment is the development of a digitization technique which is not only compatible with data rates in the range of 20 -30 Mbps, but also provides good quality pictures. This paper desribes a tri-state delta modulation/demodulation (TSDM) technique which is a good compromise between implementation complexity and performance. The salient feature of TSDM is that it provides for efficient run-length encoding of constant-intensity segments of a TV picture. Axiomatix has developed a hardware implementation of a highspeed TSDM transmitter and receiver for black-and-white TV or field-sequential color or NTSC format color. The hardware aspects of this TSDM are discussed in the paper also.en
dc.description.sponsorshipInternational Foundation for Telemeteringen
dc.identifier.issn0884-5123-
dc.identifier.issn0074-9079-
dc.identifier.urihttp://hdl.handle.net/10150/613482-
dc.identifier.journalInternational Telemetering Conference Proceedingsen
dc.typetexten
dc.typeProceedingsen
dc.relation.urlhttp://www.telemetry.org/en
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