HIGH-PERFORMANCE LANDSAT/SPOT DUAL S-/XBAND TELEMETRY TRACKING AND RECEIVING SYSTEM
dc.contributor.author | Bollermann, Bruce | |
dc.contributor.author | Harshbarger, Roger | |
dc.contributor.author | Haynie, Mark | |
dc.contributor.author | Pande, Kailash | |
dc.date.accessioned | 2016-06-30T19:50:33Z | |
dc.date.available | 2016-06-30T19:50:33Z | |
dc.date.issued | 1986-10 | |
dc.identifier.issn | 0884-5123 | |
dc.identifier.issn | 0074-9079 | |
dc.identifier.uri | http://hdl.handle.net/10150/615277 | |
dc.description | International Telemetering Conference Proceedings / October 13-16, 1986 / Riviera Hotel, Las Vegas, Nevada | en_US |
dc.description.abstract | A 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.sponsorship | International Foundation for Telemetering | en |
dc.language.iso | en_US | en |
dc.publisher | International Foundation for Telemetering | en |
dc.relation.url | http://www.telemetry.org/ | en |
dc.rights | Copyright © International Foundation for Telemetering | en |
dc.title | HIGH-PERFORMANCE LANDSAT/SPOT DUAL S-/XBAND TELEMETRY TRACKING AND RECEIVING SYSTEM | en_US |
dc.type | text | en |
dc.type | Proceedings | en |
dc.contributor.department | SPACE DATA CORPORATION | en |
dc.identifier.journal | International Telemetering Conference Proceedings | en |
dc.description.collectioninformation | 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. | en |
refterms.dateFOA | 2018-09-11T14:13:45Z | |
html.description.abstract | A 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. |