Paper Abstract and Keywords |
Presentation |
2020-03-06 10:20
Proposal of Beyond-Nyquist-Band of Water Vapor Radiometer using RF Under Sampling Xing Lyu, Mizuki Motoyoshi, Suguru Kameda, Noriharu Suematsu (Tohoku Univ.) MW2019-155 Link to ES Tech. Rep. Archives: MW2019-155 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
It is important to develop a water vapor radiometer to accurately measure the amount of water vapor and cloud water in the atmosphere for early forecasting of heavy rainfall and improving determinism of radio wave astronomical observation. Since the frequency characteristics of radiation differ between water vapor and cloud water, it is possible to separate radiation from water vapor and cloud water accurately by measuring over a wide band signal (16-30 GHz). In order to miniaturize the receiver, we propose a new receiver configuration that can receive a signal in the beyond-Nyquist-band of 14 GHz with a single Analog digital converter(ADC) at maximum sampling rate of 16 GHz and a spectrum reconstruction method using clock switching. By using different sampling rates (16 GHz, 14 GHz), it was demonstrated by simulation that the wideband signal spectrum of 16-30 GHz can be restored. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Water vapor radiometer / Beyond-Nyquist-band / Direct RF under sampling / / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 119, no. 459, MW2019-155, pp. 85-89, March 2020. |
Paper # |
MW2019-155 |
Date of Issue |
2020-02-27 (MW) |
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 |
MW2019-155 Link to ES Tech. Rep. Archives: MW2019-155 |
Conference Information |
Committee |
MW |
Conference Date |
2020-03-05 - 2020-03-06 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Kochi City Culture-Plaza CUL=PORT |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Microwave Technologies |
Paper Information |
Registration To |
MW |
Conference Code |
2020-03-MW |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Proposal of Beyond-Nyquist-Band of Water Vapor Radiometer using RF Under Sampling |
Sub Title (in English) |
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Keyword(1) |
Water vapor radiometer |
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Beyond-Nyquist-band |
Keyword(3) |
Direct RF under sampling |
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1st Author's Name |
Xing Lyu |
1st Author's Affiliation |
Tohoku University (Tohoku Univ.) |
2nd Author's Name |
Mizuki Motoyoshi |
2nd Author's Affiliation |
Tohoku University (Tohoku Univ.) |
3rd Author's Name |
Suguru Kameda |
3rd Author's Affiliation |
Tohoku University (Tohoku Univ.) |
4th Author's Name |
Noriharu Suematsu |
4th Author's Affiliation |
Tohoku University (Tohoku Univ.) |
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Speaker |
Author-1 |
Date Time |
2020-03-06 10:20:00 |
Presentation Time |
25 minutes |
Registration for |
MW |
Paper # |
MW2019-155 |
Volume (vol) |
vol.119 |
Number (no) |
no.459 |
Page |
pp.85-89 |
#Pages |
5 |
Date of Issue |
2020-02-27 (MW) |