Paper Abstract and Keywords |
Presentation |
2013-07-09 13:00
[Poster Presentation]
Stochastic Modeling of Ultra Wideband Propagation Channels within a Small Spacecraft for Replacing Onboard Data Busses with Wireless Connections Miyuki Hirose (Tokyo Denki Univ.), Atsushi Tomiki, Tomoaki Toda (JAXA), Takehiko Kobayashi (Tokyo Denki Univ./JAXA) WBS2013-14 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
Ultra wideband (UWB) propagation was measured and characterized within spacecrafts, with a view to partly replacing onboard data buses with wireless connections. Adaptation of wireless technologies in spacecrafts could contribute to: reduction of cable weight (and launching cost as a result), more flexibility in layout of spacecraft subsystems, and reliable connections at rotary, moving, and sliding joints. However, multipath propagation in semi-closed metal enclosures, such as spacecrafts, restricts the transmission performance. To realize the above benefits, multipath propagation affecting the transmission performance must be scrutinized. Spatial distributions of UWB and narrowband propagation in frequency (from 3.1 to 10.6 GHz) and time domains were measured with a microwave vector network analyzer. While narrowband resulted in a number of dead spots (deep fading points) within the conductive enclosures, UWB yielded none. In this present paper, UWB channels within a small scientific satellite was measured and statistically analyzed, based on a modified Saleh-Valenzuela (SV) model [2], which modeled indoor UWB propagation channels. The modified SV model is based on a cluster concept of rays. The clusters, as well as the multipath components within a cluster, arrive according to Poisson processes with different rates. The received power of both the cluster and the rays within a cluster decays exponentially. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Channel modeling / ultra wideband / propagation / small spacecraft / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 113, no. 117, WBS2013-14, pp. 5-10, July 2013. |
Paper # |
WBS2013-14 |
Date of Issue |
2013-07-02 (WBS) |
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) |
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WBS2013-14 |
Conference Information |
Committee |
WBS MICT |
Conference Date |
2013-07-09 - 2013-07-10 |
Place (in Japanese) |
(See Japanese page) |
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Paper Information |
Registration To |
WBS |
Conference Code |
2013-07-WBS-MICT |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Stochastic Modeling of Ultra Wideband Propagation Channels within a Small Spacecraft for Replacing Onboard Data Busses with Wireless Connections |
Sub Title (in English) |
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Keyword(1) |
Channel modeling |
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ultra wideband |
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propagation |
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small spacecraft |
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1st Author's Name |
Miyuki Hirose |
1st Author's Affiliation |
Tokyo Denki University (Tokyo Denki Univ.) |
2nd Author's Name |
Atsushi Tomiki |
2nd Author's Affiliation |
Japan Aerospace Exploration Agency (JAXA) |
3rd Author's Name |
Tomoaki Toda |
3rd Author's Affiliation |
Japan Aerospace Exploration Agency (JAXA) |
4th Author's Name |
Takehiko Kobayashi |
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Tokyo Denki University/Japan Aerospace Exploration Agency (Tokyo Denki Univ./JAXA) |
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Speaker |
Author-1 |
Date Time |
2013-07-09 13:00:00 |
Presentation Time |
100 minutes |
Registration for |
WBS |
Paper # |
WBS2013-14 |
Volume (vol) |
vol.113 |
Number (no) |
no.117 |
Page |
pp.5-10 |
#Pages |
6 |
Date of Issue |
2013-07-02 (WBS) |
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