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| Paper Abstract and Keywords | ||
| Presentation | 2008-07-25 11:20 Results of New Assessment of Terrestrial Digital Broadcasting Satellite Retransmission System Availability by Using Non-snow Attached LuneQ Antenna Takeshi Hatsuda (HAT PROE), Yasunori Iwamori (HIT), Manabu Sasaki, Tushima Yosiyukji, Noritami Yoshimura (JSAT), Kenichirou Kawasaki, Takaaki Zakouji (SKAPAR), Takahisa Yamashita, Masatoshi Kuroda, Katsuki Imai (SEI), Yasuyuki Maekawa (Oosaka E.C.U.)  SAT2008-15 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | To accomplish the satellite retransmission system for terrestrial digital broadcasting CTV signals, snow attenuation due to snow attachment on the antenna dish in snow climate areas in northern parts of Japan should be clarified. To address these issues, experiments to investigate the snow attenuation characteristics of the parabola antenna, Lune-Q antenna, negative-gradient slanted polymer-shielded Lune-Q antenna etc. were carried out by using the JSAT satellite transponder. Though those experiments, it becomes clear that the signal attenuations due to rain or snow are different between types of antenna. The reasons of signal attenuation difference comes from water or snow attachment on main dish or feeders. The processed results of horizontally implemented Lune-Q antenna attenuation characteristics due to rain attachment are reported. By using the negative-slanted non-snow attached Lune-Q antenna, satellite link unavailability can be largely improved, compared with conventional stochastic attenuation data measured by parabola antenna. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | terrestrial digital broadcasting / Lune-Q antenna / non-snow attached Lune-Q antenna / / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 108, no. 149, SAT2008-15, pp. 49-54, July 2008. | |
| Paper # | SAT2008-15 | |
| Date of Issue | 2008-07-17 (SAT) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | SAT2008-15 |
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| Conference Information | |
| Committee | AP SAT |
| Conference Date | 2008-07-23 - 2008-07-25 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Hokkaido University |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Satellite Communications, Antennas and Progation, etc. |
| Paper Information | |
| Registration To | SAT |
| Conference Code | 2008-07-AP-SAT |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Results of New Assessment of Terrestrial Digital Broadcasting Satellite Retransmission System Availability by Using Non-snow Attached LuneQ Antenna |
| Sub Title (in English) | |
| Keyword(1) | terrestrial digital broadcasting |
| Keyword(2) | Lune-Q antenna |
| Keyword(3) | non-snow attached Lune-Q antenna |
| Keyword(4) | |
| Keyword(5) | |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Takeshi Hatsuda |
| 1st Author's Affiliation | Hatsuda Professinal Engineer Office (HAT PROE) |
| 2nd Author's Name | Yasunori Iwamori |
| 2nd Author's Affiliation | Hokkido Inst. of Tech.. (HIT) |
| 3rd Author's Name | Manabu Sasaki |
| 3rd Author's Affiliation | JSAT (JSAT) |
| 4th Author's Name | Tushima Yosiyukji |
| 4th Author's Affiliation | JSAT (JSAT) |
| 5th Author's Name | Noritami Yoshimura |
| 5th Author's Affiliation | JSAT (JSAT) |
| 6th Author's Name | Kenichirou Kawasaki |
| 6th Author's Affiliation | SKYPerfect Communications, Inc (SKAPAR) |
| 7th Author's Name | Takaaki Zakouji |
| 7th Author's Affiliation | SKYPerfect Communications, Inc (SKAPAR) |
| 8th Author's Name | Takahisa Yamashita |
| 8th Author's Affiliation | SEI Hybrid Products, Inc (SEI) |
| 9th Author's Name | Masatoshi Kuroda |
| 9th Author's Affiliation | SEI Hybrid Products, Inc (SEI) |
| 10th Author's Name | Katsuki Imai |
| 10th Author's Affiliation | SEI Hybrid Products, Inc (SEI) |
| 11th Author's Name | Yasuyuki Maekawa |
| 11th Author's Affiliation | Osaka Electro-Communication University, (Oosaka E.C.U.) |
| Speaker | Author-1 |
| Date Time | 2008-07-25 11:20:00 |
| Presentation Time | 25 minutes |
| Registration for | SAT |
| Paper # | SAT2008-15 |
| Volume (vol) | vol.108 |
| Number (no) | no.149 |
| Page | pp.49-54 |
| #Pages | 6 |
| Date of Issue | 2008-07-17 (SAT) |
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