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| Presentation | 2021-11-04 09:30 Direct RF undersampling method without anti-aliasing top filter Takashi Shiba (Tohoku Univ.), Suguru Kameda (Hiroshima Univ.), Noriharu Suematsu (Tohoku Univ.)  SR2021-41 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Direct RF undersampling method is important technique for digital circuit and digital devices because sampling frequency of Analogue-Digital converter (ADC) can be decreased. It is necessary to set front-end bandpass filter for keeping a receiver sensitivity by suppressing some aliasing noises and some jamming signals at outbands. Software defined radio (SDR) can not be achieved for RF circuit using direct RF undersampling technique, because it is difficult to achieve perfect tunable filter currently. We propose a multi-ADC method for equivalent higher Nyquist frequency to suppress aliasing noise and jamming. We confirm effectiveness of this method by a simulation. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Direct RF undersampling / Spectrum sensing / Anti-aliasing filter / Filter-less / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 121, no. 227, SR2021-41, pp. 1-8, Nov. 2021. | |
| Paper # | SR2021-41 | |
| Date of Issue | 2021-10-28 (SR) | |
| 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 | SR2021-41 |
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| Conference Information | |
| Committee | SR |
| Conference Date | 2021-11-04 - 2021-11-05 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Software Defined Radio, Cognitive Radio, Spectrum Shareing, etc. |
| Paper Information | |
| Registration To | SR |
| Conference Code | 2021-11-SR |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Direct RF undersampling method without anti-aliasing top filter |
| Sub Title (in English) | |
| Keyword(1) | Direct RF undersampling |
| Keyword(2) | Spectrum sensing |
| Keyword(3) | Anti-aliasing filter |
| Keyword(4) | Filter-less |
| Keyword(5) | |
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| Keyword(8) | |
| 1st Author's Name | Takashi Shiba |
| 1st Author's Affiliation | Tohoku University (Tohoku Univ.) |
| 2nd Author's Name | Suguru Kameda |
| 2nd Author's Affiliation | Hiroshima University (Hiroshima Univ.) |
| 3rd Author's Name | Noriharu Suematsu |
| 3rd Author's Affiliation | Tohoku University (Tohoku Univ.) |
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| Speaker | Author-1 |
| Date Time | 2021-11-04 09:30:00 |
| Presentation Time | 25 minutes |
| Registration for | SR |
| Paper # | SR2021-41 |
| Volume (vol) | vol.121 |
| Number (no) | no.227 |
| Page | pp.1-8 |
| #Pages | 8 |
| Date of Issue | 2021-10-28 (SR) |
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