| IEICE Technical Committee Submission System Conference Paper's Information |
Online Proceedings [Sign in] Tech. Rep. Archives |
| Go Top Page | Go Previous | [Japanese] / [English] |
| Paper Abstract and Keywords | ||
| Presentation | 2017-10-19 14:25 Statistical Analyses of Cross-Polarization Discrimination Degradation of Ka-band Satellite Communication Signals due to Lightning Discharges Yasuyuki Maekawa (Osaka Electro-Commun. Univ.)  AP2017-96 |
|
| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Increase and decrease of rapid changes in cross-polarization discrimination (XPD) of Ka-band satellite radio wave caused by thunderstorm events are investigated using the beacon signal (19.45GHz, right-hand circular polarization) of CS-3 and N-Star observed at 1 sec interval in Osaka Electro-Communication University, Neyagawa, Osaka, from 1990 to 1998. The tendency of observed rapid changes of XPD and cross-polar phases is consistently explained under the assumption of appropriate XPD and cross-polar phases due to the alignment and mean canting angles of ice crystals near the discharging point. The mean canting angles of ice crystals are shown to be increased up to near 90°before the discharges, more than 90% of them being decreased after the discharges. This phenomenon is more conspicuous at the middle stage of thunderstorm events corresponding to the matured stage. The increase of canting angles of ice crystals near the discharging point is found to be more enhanced in the inter-cloud lightning discharge that does not coincide with the time of cloud-to-ground discharges recorded near the observational location. Also, the increase of canting angles of ice crystals is predominant when the XPD values are decreased after the rapid changes. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Satellite communications / Ka-band / Cross-polarization discrimination / Cross-polar phase / Lightning discharge / Rapid changes / Ice crystals / Canting angles | |
| Reference Info. | IEICE Tech. Rep., vol. 117, no. 242, AP2017-96, pp. 11-14, Oct. 2017. | |
| Paper # | AP2017-96 | |
| Date of Issue | 2017-10-12 (AP) | |
| 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 | AP2017-96 |
|
| Conference Information | |
| Committee | AP |
| Conference Date | 2017-10-19 - 2017-10-20 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Hchinohe-Shoukou-Kaikan |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Antennas and Propagation |
| Paper Information | |
| Registration To | AP |
| Conference Code | 2017-10-AP |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Statistical Analyses of Cross-Polarization Discrimination Degradation of Ka-band Satellite Communication Signals due to Lightning Discharges |
| Sub Title (in English) | |
| Keyword(1) | Satellite communications |
| Keyword(2) | Ka-band |
| Keyword(3) | Cross-polarization discrimination |
| Keyword(4) | Cross-polar phase |
| Keyword(5) | Lightning discharge |
| Keyword(6) | Rapid changes |
| Keyword(7) | Ice crystals |
| Keyword(8) | Canting angles |
| 1st Author's Name | Yasuyuki Maekawa |
| 1st Author's Affiliation | Osaka Electro-Communication University (Osaka Electro-Commun. Univ.) |
| 2nd Author's Name | |
| 2nd Author's Affiliation | () |
| 3rd Author's Name | |
| 3rd Author's Affiliation | () |
| 4th Author's Name | |
| 4th Author's Affiliation | () |
| 5th Author's Name | |
| 5th Author's Affiliation | () |
| 6th Author's Name | |
| 6th Author's Affiliation | () |
| 7th Author's Name | |
| 7th Author's Affiliation | () |
| 8th Author's Name | |
| 8th Author's Affiliation | () |
| 9th Author's Name | |
| 9th Author's Affiliation | () |
| 10th Author's Name | |
| 10th Author's Affiliation | () |
| 11th Author's Name | |
| 11th Author's Affiliation | () |
| 12th Author's Name | |
| 12th Author's Affiliation | () |
| 13th Author's Name | |
| 13th Author's Affiliation | () |
| 14th Author's Name | |
| 14th Author's Affiliation | () |
| 15th Author's Name | |
| 15th Author's Affiliation | () |
| 16th Author's Name | |
| 16th Author's Affiliation | () |
| 17th Author's Name | |
| 17th Author's Affiliation | () |
| 18th Author's Name | |
| 18th Author's Affiliation | () |
| Speaker | Author-1 |
| Date Time | 2017-10-19 14:25:00 |
| Presentation Time | 25 minutes |
| Registration for | AP |
| Paper # | AP2017-96 |
| Volume (vol) | vol.117 |
| Number (no) | no.242 |
| Page | pp.11-14 |
| #Pages | 4 |
| Date of Issue | 2017-10-12 (AP) |
[Return to Top Page]