Persistent Link:
http://hdl.handle.net/10150/604302
Title:
Digital Cross-Polar Interference Canceller
Author:
Thesling, Bill
Affiliation:
ViaSat, Inc.
Issue Date:
2010-10
Rights:
Copyright © held by the author; distribution rights 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:
Dual-polarized data transmission promises to double the system capacity by transmitting independent signals simultaneously on both polarizations in the same channel. However, the polarization orthogonality of the propagation field can not always be perfectly preserved in various environments. Also the antenna and waveguide networks may not be able to achieve absolute polarization isolation. Therefore cross-polarization interference becomes a severe source of performance degradation in dual-polar systems. This paper presents an all-digital design of the cross-polarization interference canceller (XPIC or CPIC). This canceller is designed to remove the cross-polar interference so that comparable performance to single-polar system can be achieved for each polarization. Specifically, this digital design aims for • Mitigating the cross-polarization interference caused primarily by antenna orientation. (Delay between the signals from both polarizations is considered insignificant.) • Can operate with time varying cross-polar interference varying at rates of 2-3 Hz and beyond. • Initial isolation can be as low as 10 dB. • Is well suited to an all digital modem where clocking from the A/D is independent of symbol timing recovery clocks.
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 Cross-Polar Interference Cancelleren_US
dc.contributor.authorThesling, Billen
dc.contributor.departmentViaSat, Inc.en
dc.date.issued2010-10en
dc.rightsCopyright © held by the author; distribution rights 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.abstractDual-polarized data transmission promises to double the system capacity by transmitting independent signals simultaneously on both polarizations in the same channel. However, the polarization orthogonality of the propagation field can not always be perfectly preserved in various environments. Also the antenna and waveguide networks may not be able to achieve absolute polarization isolation. Therefore cross-polarization interference becomes a severe source of performance degradation in dual-polar systems. This paper presents an all-digital design of the cross-polarization interference canceller (XPIC or CPIC). This canceller is designed to remove the cross-polar interference so that comparable performance to single-polar system can be achieved for each polarization. Specifically, this digital design aims for • Mitigating the cross-polarization interference caused primarily by antenna orientation. (Delay between the signals from both polarizations is considered insignificant.) • Can operate with time varying cross-polar interference varying at rates of 2-3 Hz and beyond. • Initial isolation can be as low as 10 dB. • Is well suited to an all digital modem where clocking from the A/D is independent of symbol timing recovery clocks.en
dc.description.sponsorshipInternational Foundation for Telemeteringen
dc.identifier.issn0884-5123en
dc.identifier.issn0074-9079en
dc.identifier.urihttp://hdl.handle.net/10150/604302en
dc.identifier.journalInternational Telemetering Conference Proceedingsen
dc.typetexten
dc.typeProceedingsen
dc.relation.urlhttp://www.telemetry.org/en
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