Persistent Link:
http://hdl.handle.net/10150/614678
Title:
Simulated Performance Results of the OMV Video Compression Telemetry System
Author:
Ingels, Frank; Parker, Glenn; Thomas, Lee Ann
Affiliation:
Mississippi State University; Marshall Space Flight Center, NASA
Issue Date:
1989-11
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 Orbital Maneuverable Vehicle (OMV) will use a man-in-the-loop round trip space-to-earth communication link for remote control and docking with an orbiting spacecraft. The control system uses range/range rate radar, a forward command link, and a compressed video return link. Figure 1 illustrates the overall compressed video coding techniques. Analog RS-170 compatible video is available from any one of eight or, at a lower resolution, simultaneously from any two television cameras. The video data is digitized and then compressed by sampling every sixth frame of data. A rate of five frames per second is adequate for the OMV docking speeds. Further compression, at the expense of spatial resolution, is obtained by averaging adjacent pixels. The remaining compression is achieved using differential pulse code modulation (DPCM) and Huffman run length encoding. To protect this compressed video data stream from Space to TDRSS channel errors, a concatenated error correction coding system will be used. This concatenated coding is achieved by encoding with a helical interleaved (depth 8) Reed-Solomon (255,239) block code and then encoding with a rate 112 convolution code (constraint length 7) followed by a periodic convolution interleaver (30,116). Thus, we see that four stages of compression, two types of error correction encoding and two levels of interleaving are utilized in this fairly sophisticated data transmission system. A detailed system description and simulated system performance results are presented in this paper.
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.titleSimulated Performance Results of the OMV Video Compression Telemetry Systemen_US
dc.contributor.authorIngels, Franken
dc.contributor.authorParker, Glennen
dc.contributor.authorThomas, Lee Annen
dc.contributor.departmentMississippi State Universityen
dc.contributor.departmentMarshall Space Flight Center, NASAen
dc.date.issued1989-11-
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 Orbital Maneuverable Vehicle (OMV) will use a man-in-the-loop round trip space-to-earth communication link for remote control and docking with an orbiting spacecraft. The control system uses range/range rate radar, a forward command link, and a compressed video return link. Figure 1 illustrates the overall compressed video coding techniques. Analog RS-170 compatible video is available from any one of eight or, at a lower resolution, simultaneously from any two television cameras. The video data is digitized and then compressed by sampling every sixth frame of data. A rate of five frames per second is adequate for the OMV docking speeds. Further compression, at the expense of spatial resolution, is obtained by averaging adjacent pixels. The remaining compression is achieved using differential pulse code modulation (DPCM) and Huffman run length encoding. To protect this compressed video data stream from Space to TDRSS channel errors, a concatenated error correction coding system will be used. This concatenated coding is achieved by encoding with a helical interleaved (depth 8) Reed-Solomon (255,239) block code and then encoding with a rate 112 convolution code (constraint length 7) followed by a periodic convolution interleaver (30,116). Thus, we see that four stages of compression, two types of error correction encoding and two levels of interleaving are utilized in this fairly sophisticated data transmission system. A detailed system description and simulated system performance results are presented in this paper.en
dc.description.sponsorshipInternational Foundation for Telemeteringen
dc.identifier.issn0884-5123-
dc.identifier.issn0074-9079-
dc.identifier.urihttp://hdl.handle.net/10150/614678-
dc.identifier.journalInternational Telemetering Conference Proceedingsen
dc.typetexten
dc.typeProceedingsen
dc.relation.urlhttp://www.telemetry.org/en
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