| 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 | 2019-08-30 10:00 Improvement of instantaneous frequency estimation by finite order Hilbert transformer using notch filter Keisuke Takao, Takahiro Natori, Naoyuki Aikawa (TUS)  SIP2019-45 |
|
| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Frequency estimation is used in a wide range of fields such as radar, communications, voice, and medicine. One of the methods is to use instantaneous frequency. In this method, a complex signal called an analysis signal is generated, and the instantaneous frequency is obtained by temporally differentiating the instantaneous phase of this complex signal. In general, analytic signal is generated using Hilbert transformers. However, because Hilbert transformers with finite orders have approximation errors, the estimated instantaneous frequency includes the component derived from the approximation error in addition to the original signal component. This error can be suppressed by making the Hilbert transformer higher order, but the increase in the order results in an increase in the delay for obtaining the instantaneous frequency. In this paper, we propose a method to remove the effect of approximation error by using notch filter. As a result, even with a low-order Hilbert transformer, it is possible to estimate the instantaneous frequency with high accuracy. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | frequency estimation / instantaneous frequency / Hilbert transformer / notch filter / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 119, no. 185, SIP2019-45, pp. 31-34, Aug. 2019. | |
| Paper # | SIP2019-45 | |
| Date of Issue | 2019-08-22 (SIP) | |
| 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 | SIP2019-45 |
|
| Conference Information | |
| Committee | SIP |
| Conference Date | 2019-08-29 - 2019-08-30 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | SIP |
| Conference Code | 2019-08-SIP |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Improvement of instantaneous frequency estimation by finite order Hilbert transformer using notch filter |
| Sub Title (in English) | |
| Keyword(1) | frequency estimation |
| Keyword(2) | instantaneous frequency |
| Keyword(3) | Hilbert transformer |
| Keyword(4) | notch filter |
| Keyword(5) | |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Keisuke Takao |
| 1st Author's Affiliation | Tokyo University of Science (TUS) |
| 2nd Author's Name | Takahiro Natori |
| 2nd Author's Affiliation | Tokyo University of Science (TUS) |
| 3rd Author's Name | Naoyuki Aikawa |
| 3rd Author's Affiliation | Tokyo University of Science (TUS) |
| 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 | 2019-08-30 10:00:00 |
| Presentation Time | 25 minutes |
| Registration for | SIP |
| Paper # | SIP2019-45 |
| Volume (vol) | vol.119 |
| Number (no) | no.185 |
| Page | pp.31-34 |
| #Pages | 4 |
| Date of Issue | 2019-08-22 (SIP) |
[Return to Top Page]