Results from Two Years of Ka-Band Propagation Characterization at Svalbard, Norway
Over the several years, NASA plans to launch several earth science missions which are expected to achieve data throughputs of 5-40 terabits per day transmitted from low earth orbiting spacecraft to ground stations. The current S-band and X-band frequency allocations in use by NASA, however, are inca...
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ftnasantrs:oai:casi.ntrs.nasa.gov:20140017334 2023-05-15T18:29:40+02:00 Results from Two Years of Ka-Band Propagation Characterization at Svalbard, Norway Morse, Jacquelynne Rose Nessel, James A. Zemba, Michael Unclassified, Unlimited, Publicly available April 6, 2014 application/pdf http://hdl.handle.net/2060/20140017334 unknown Document ID: 20140017334 http://hdl.handle.net/2060/20140017334 No Copyright CASI Communications and Radar GRC-E-DAA-TN12968 European Conference on Antennas and Propagation; 6-11 Apr. 2014; The Hague; Netherlands 2014 ftnasantrs 2019-07-21T00:21:25Z Over the several years, NASA plans to launch several earth science missions which are expected to achieve data throughputs of 5-40 terabits per day transmitted from low earth orbiting spacecraft to ground stations. The current S-band and X-band frequency allocations in use by NASA, however, are incapable of supporting the data rates required to meet this demand. As such, NASA is in the planning stages to upgrade its existing Near Earth Network (NEN) Polar ground stations to support Ka-band (25.5-27 GHz) operations. Consequently, it becomes imperative that characterization of propagation effects at these NEN sites is conducted to determine expected system performance, particularly at low elevation angles ((is) less than 10 deg) where spacecraft signal acquisition typically occurs. Since May 2011, NASA Glenn Research Center has installed and operated a Ka-band radiometer at the NEN site located in Svalbard, Norway. The Ka-band radiometer monitors the water vapor line, as well as 6 frequencies around 26.5 GHz at multiple elevation angles: 45 deg, 20 deg, and 10 deg. Two year data collection results indicate comparable performance to previously characterized northern latitude sites in the United States, i.e., Fairbanks, Alaska. It is observed that cloud cover at the Svalbard site remains the dominant loss mechanism for Ka-band links, resulting in a margin requirement of 4.1 dB to maintain link availability of 99% at 10 deg elevation. Other/Unknown Material Svalbard Alaska NASA Technical Reports Server (NTRS) Fairbanks Norway Svalbard |
institution |
Open Polar |
collection |
NASA Technical Reports Server (NTRS) |
op_collection_id |
ftnasantrs |
language |
unknown |
topic |
Communications and Radar |
spellingShingle |
Communications and Radar Morse, Jacquelynne Rose Nessel, James A. Zemba, Michael Results from Two Years of Ka-Band Propagation Characterization at Svalbard, Norway |
topic_facet |
Communications and Radar |
description |
Over the several years, NASA plans to launch several earth science missions which are expected to achieve data throughputs of 5-40 terabits per day transmitted from low earth orbiting spacecraft to ground stations. The current S-band and X-band frequency allocations in use by NASA, however, are incapable of supporting the data rates required to meet this demand. As such, NASA is in the planning stages to upgrade its existing Near Earth Network (NEN) Polar ground stations to support Ka-band (25.5-27 GHz) operations. Consequently, it becomes imperative that characterization of propagation effects at these NEN sites is conducted to determine expected system performance, particularly at low elevation angles ((is) less than 10 deg) where spacecraft signal acquisition typically occurs. Since May 2011, NASA Glenn Research Center has installed and operated a Ka-band radiometer at the NEN site located in Svalbard, Norway. The Ka-band radiometer monitors the water vapor line, as well as 6 frequencies around 26.5 GHz at multiple elevation angles: 45 deg, 20 deg, and 10 deg. Two year data collection results indicate comparable performance to previously characterized northern latitude sites in the United States, i.e., Fairbanks, Alaska. It is observed that cloud cover at the Svalbard site remains the dominant loss mechanism for Ka-band links, resulting in a margin requirement of 4.1 dB to maintain link availability of 99% at 10 deg elevation. |
format |
Other/Unknown Material |
author |
Morse, Jacquelynne Rose Nessel, James A. Zemba, Michael |
author_facet |
Morse, Jacquelynne Rose Nessel, James A. Zemba, Michael |
author_sort |
Morse, Jacquelynne Rose |
title |
Results from Two Years of Ka-Band Propagation Characterization at Svalbard, Norway |
title_short |
Results from Two Years of Ka-Band Propagation Characterization at Svalbard, Norway |
title_full |
Results from Two Years of Ka-Band Propagation Characterization at Svalbard, Norway |
title_fullStr |
Results from Two Years of Ka-Band Propagation Characterization at Svalbard, Norway |
title_full_unstemmed |
Results from Two Years of Ka-Band Propagation Characterization at Svalbard, Norway |
title_sort |
results from two years of ka-band propagation characterization at svalbard, norway |
publishDate |
2014 |
url |
http://hdl.handle.net/2060/20140017334 |
op_coverage |
Unclassified, Unlimited, Publicly available |
geographic |
Fairbanks Norway Svalbard |
geographic_facet |
Fairbanks Norway Svalbard |
genre |
Svalbard Alaska |
genre_facet |
Svalbard Alaska |
op_source |
CASI |
op_relation |
Document ID: 20140017334 http://hdl.handle.net/2060/20140017334 |
op_rights |
No Copyright |
_version_ |
1766212908743655424 |