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dc.contributor.authorBollermann, Bruce
dc.contributor.authorHarshbarger, Roger
dc.contributor.authorHaynie, Mark
dc.contributor.authorPande, Kailash
dc.date.accessioned2016-06-30T19:50:33Z
dc.date.available2016-06-30T19:50:33Z
dc.date.issued1986-10
dc.identifier.issn0884-5123
dc.identifier.issn0074-9079
dc.identifier.urihttp://hdl.handle.net/10150/615277
dc.descriptionInternational Telemetering Conference Proceedings / October 13-16, 1986 / Riviera Hotel, Las Vegas, Nevadaen_US
dc.description.abstractA high-performance dual S/X-band telemetry tracking and receiving system has been developed to provide a low-cost earth station for receiving high-resolution data from current and future LANDSAT/Spot polar orbiting satellites. The antenna system consists of a dual S/X-band telemetry tracking feed in a Cassegrain configuration with a 10-meter parabolic reflector designed for 100 mph wind loading and 10 deg/sec accelerations. The 2 antenna system is mounted to a newly-developed elevation-over-azimuth tracking pedestal, which incorporates the latest technology in a dual brushless d.c. servo motor torque-biased drive train for each axis. This drive train provides an exceptionally wide dynamic range in trlcking velocities for very slow horizon tracking and very fast velocities for near-overhead passes. A microprocessor-based servo control system using the latest state variables feedback and adaptive control techniques is used to provide accurate tracking for both slow and fast rates. A 15-km satellite pass distance from overhead is used as a control system design criterion. For the narrow beamwidth X-band track this requires an acceleration error of less than 0.100 degree and an acceleration error constant of at least 90 sec . The requirement for a high-performance servo system with the low -2 structural resonances of a large antenna constitutes a difficult stability problem.
dc.description.sponsorshipInternational Foundation for Telemeteringen
dc.language.isoen_USen
dc.publisherInternational Foundation for Telemeteringen
dc.relation.urlhttp://www.telemetry.org/en
dc.rightsCopyright © International Foundation for Telemeteringen
dc.titleHIGH-PERFORMANCE LANDSAT/SPOT DUAL S-/XBAND TELEMETRY TRACKING AND RECEIVING SYSTEMen_US
dc.typetexten
dc.typeProceedingsen
dc.contributor.departmentSPACE DATA CORPORATIONen
dc.identifier.journalInternational Telemetering Conference Proceedingsen
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
refterms.dateFOA2018-09-11T14:13:45Z
html.description.abstractA high-performance dual S/X-band telemetry tracking and receiving system has been developed to provide a low-cost earth station for receiving high-resolution data from current and future LANDSAT/Spot polar orbiting satellites. The antenna system consists of a dual S/X-band telemetry tracking feed in a Cassegrain configuration with a 10-meter parabolic reflector designed for 100 mph wind loading and 10 deg/sec accelerations. The 2 antenna system is mounted to a newly-developed elevation-over-azimuth tracking pedestal, which incorporates the latest technology in a dual brushless d.c. servo motor torque-biased drive train for each axis. This drive train provides an exceptionally wide dynamic range in trlcking velocities for very slow horizon tracking and very fast velocities for near-overhead passes. A microprocessor-based servo control system using the latest state variables feedback and adaptive control techniques is used to provide accurate tracking for both slow and fast rates. A 15-km satellite pass distance from overhead is used as a control system design criterion. For the narrow beamwidth X-band track this requires an acceleration error of less than 0.100 degree and an acceleration error constant of at least 90 sec . The requirement for a high-performance servo system with the low -2 structural resonances of a large antenna constitutes a difficult stability problem.


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