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COMETS experiments for advanced mobile satellite communications and advanced satellite broadcasting

2000; Wiley; Volume: 18; Issue: 2 Linguagem: Inglês

10.1002/(sici)1099-1247(200003/04)18

1099-1247

H. Wakana, H. Saito, S. Yamamoto, M. Ohkawa, N. Obara, H‐B. Li, M. Tanaka,

Distributed and Parallel Computing Systems

International Journal of Satellite CommunicationsVolume 18, Issue 2 p. 63-85 Research Article COMETS experiments for advanced mobile satellite communications and advanced satellite broadcasting H. Wakana, Corresponding Author H. Wakana Kashima Space Research Centre, Communications Research Laboratory, 893-1 Hirai, Kashima, Ibaraki 314-0012, JapanKashima Space Research Centre, Communications Research Laboratory, 893-1 Hirai, Kashima, Ibaraki 314-0012, Japan===Search for more papers by this authorH. Saito, H. Saito Kashima Space Research Centre, Communications Research Laboratory, 893-1 Hirai, Kashima, Ibaraki 314-0012, JapanSearch for more papers by this authorS. Yamamoto, S. Yamamoto Kashima Space Research Centre, Communications Research Laboratory, 893-1 Hirai, Kashima, Ibaraki 314-0012, JapanSearch for more papers by this authorM. Ohkawa, M. Ohkawa Kashima Space Research Centre, Communications Research Laboratory, 893-1 Hirai, Kashima, Ibaraki 314-0012, JapanSearch for more papers by this authorN. Obara, N. Obara Kashima Space Research Centre, Communications Research Laboratory, 893-1 Hirai, Kashima, Ibaraki 314-0012, JapanSearch for more papers by this authorH-B. Li, H-B. Li Kashima Space Research Centre, Communications Research Laboratory, 893-1 Hirai, Kashima, Ibaraki 314-0012, JapanSearch for more papers by this authorM. Tanaka, M. Tanaka Kashima Space Research Centre, Communications Research Laboratory, 893-1 Hirai, Kashima, Ibaraki 314-0012, JapanSearch for more papers by this author H. Wakana, Corresponding Author H. Wakana Kashima Space Research Centre, Communications Research Laboratory, 893-1 Hirai, Kashima, Ibaraki 314-0012, JapanKashima Space Research Centre, Communications Research Laboratory, 893-1 Hirai, Kashima, Ibaraki 314-0012, Japan===Search for more papers by this authorH. Saito, H. Saito Kashima Space Research Centre, Communications Research Laboratory, 893-1 Hirai, Kashima, Ibaraki 314-0012, JapanSearch for more papers by this authorS. Yamamoto, S. Yamamoto Kashima Space Research Centre, Communications Research Laboratory, 893-1 Hirai, Kashima, Ibaraki 314-0012, JapanSearch for more papers by this authorM. Ohkawa, M. Ohkawa Kashima Space Research Centre, Communications Research Laboratory, 893-1 Hirai, Kashima, Ibaraki 314-0012, JapanSearch for more papers by this authorN. Obara, N. Obara Kashima Space Research Centre, Communications Research Laboratory, 893-1 Hirai, Kashima, Ibaraki 314-0012, JapanSearch for more papers by this authorH-B. Li, H-B. Li Kashima Space Research Centre, Communications Research Laboratory, 893-1 Hirai, Kashima, Ibaraki 314-0012, JapanSearch for more papers by this authorM. Tanaka, M. Tanaka Kashima Space Research Centre, Communications Research Laboratory, 893-1 Hirai, Kashima, Ibaraki 314-0012, JapanSearch for more papers by this author First published: 07 April 2000 https://doi.org/10.1002/(SICI)1099-1247(200003/04)18:2 3.0.CO;2-JCitations: 5AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onEmailFacebookTwitterLinkedInRedditWechat Abstract The Communications and Broadcasting Engineering Test Satellite (COMETS) was developed to evaluate Ka-band (31/21GHz) and millimetre-wave (47/44 GHz) advanced mobile satellite communications systems, 21GHz advanced satellite broadcasting systems, and S-band and Ka-band inter-orbit satellite communications systems. COMETS was launched because it was to become the new ‘bridge’ toward advanced satellite communications technologies in the next century, but the launch on 21 February 1998 regretfully failed due to premature shut down of the second stage engine of the H-II launch rocket. After this accident, the initial low elliptic orbit of COMETS was improved by the apogee engine to a larger elliptic orbit with an apogee altitude of 17711km, a perigee altitude of 473 km, an inclination of 30.1°, and an orbital period of 319 min. Original and modified COMETS experimental plans, countermeasures in earth stations for the orbiting satellite, as well as an overview of the COMETS satellite and ground terminals are presented. Copyright © 2000 John Wiley & Sons, Ltd. REFERENCES 1 Ohmori S, Wakana H, Kawase S. Mobile Satellite Communications. Artech House: Boston, 1997. Google Scholar 2 Rafferty W, Dessouky K, Sue M. NASA's mobile satellite development program. Proceedings of the International Mobile Satellite Conference, Pasadena, CA, NASA/JPL Pub. 88-9, 1998. Google Scholar 3 Sward D., Mobile satellite service for Canada. Proceedings of the International Mobile Satellite Conference, Pasadena, CA, NASA/JPL Pub. 88-9, 1988. Google Scholar 4 PROSAT Phase I Report, European Space Agency, ESA STR-216, May 1986. Google Scholar 5 Jedrey TC (ed.) Special issue on the Advance Communications Technology Satellite. International Journal of Satellite Communications 1996; 14(3). Google Scholar 6 Konishi Y (ed.). 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Google Scholar Citing Literature Volume18, Issue2March/April 2000Pages 63-85 ReferencesRelatedInformation