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| Presentation | 2018-06-22 15:40 VCM System with Only Variable Modulation Scheduling According to Satellite Elevation Angle Chihaya Kato, Mitsuhiro Nakadai, Yajima Masanobu (JAXA)  SANE2018-19 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Recently, researches and developments of higher-order modulation and broadband telecommunication systems become more intensive in order to correspond to an increasing the capacity of observation data associated with the high performance of earth observation satellites. Japan Aerospace Exploration Agency (JAXA) has historically developed higher-order modulation and broadband telecommunication systems in the ALOS-2 satellite and so on. In order to further increase the data rate, we are working on the research and development of the Ka-band Direct Transmission (DT) system with higher-order modulation (32 APSK) based on the DVB-S2 standard. In this system, link feasibility at low elevation angles and applicability of high coding gain error correction code are issues. As the result of analysis and experimental evaluation to these issues, we found that high-speed VCM system based on the DVB-S2 standard with only variable modulation scheduling and the coding rate of 5/6 was suitable DT system. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Earth Observation Satellite / High-speed telecommunication / 32APSK / Ka-band / VCM / LDPC code / Error floor / | |
| Reference Info. | IEICE Tech. Rep., vol. 118, no. 105, SANE2018-19, pp. 33-37, June 2018. | |
| Paper # | SANE2018-19 | |
| Date of Issue | 2018-06-15 (SANE) | |
| ISSN | 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 | SANE2018-19 |
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| Conference Information | |
| Committee | SANE |
| Conference Date | 2018-06-22 - 2018-06-22 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Tsukuba Space Center, JAXA |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Space applications symposium, Mission for Space Science, Satellite technology and General issue |
| Paper Information | |
| Registration To | SANE |
| Conference Code | 2018-06-SANE |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | VCM System with Only Variable Modulation Scheduling According to Satellite Elevation Angle |
| Sub Title (in English) | |
| Keyword(1) | Earth Observation Satellite |
| Keyword(2) | High-speed telecommunication |
| Keyword(3) | 32APSK |
| Keyword(4) | Ka-band |
| Keyword(5) | VCM |
| Keyword(6) | LDPC code |
| Keyword(7) | Error floor |
| Keyword(8) | |
| 1st Author's Name | Chihaya Kato |
| 1st Author's Affiliation | Japan Aerospace Exploration Agency (JAXA) |
| 2nd Author's Name | Mitsuhiro Nakadai |
| 2nd Author's Affiliation | Japan Aerospace Exploration Agency (JAXA) |
| 3rd Author's Name | Yajima Masanobu |
| 3rd Author's Affiliation | Japan Aerospace Exploration Agency (JAXA) |
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| Speaker | Author-1 |
| Date Time | 2018-06-22 15:40:00 |
| Presentation Time | 25 minutes |
| Registration for | SANE |
| Paper # | SANE2018-19 |
| Volume (vol) | vol.118 |
| Number (no) | no.105 |
| Page | pp.33-37 |
| #Pages | 5 |
| Date of Issue | 2018-06-15 (SANE) |
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