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Paper Abstract and Keywords
Presentation 2018-08-20 14:00
Design method of variable FIR filters with specified attenuation in part of stopband
Takakazu Kimura (TUS), Toma Miyata (Salesian Polytechnic), Yoshinori Tarumoto (ISHIDA), Takahiro Natori, Naoyuki Aikawa (TUS) SIP2018-57
Abstract (in Japanese) (See Japanese page) 
(in English) In the field of digital signal processing, the frequency characteristics may be instantaneously changed according to the processing purpose.
A variable digital filter(VDF) is a filter whose frequency characteristics can be easily and instantaneously changed. In the conventional variable filter, if the cutoff frequency changes, the stopband attenuation changes. Therefore, it becomes impossible to maintain the sufficient attenuation in a part of stopband.
In this paper, we propose a design method for variable FIR filters with specified attenuation in part of stopband. The optimization methodology known as semi-definite programming(SDP) is used to design filter.
In this optimization process, we add to the constraint on the specified attenuation in part of stopband. Through some example, the proposed filter shows sufficient attenuation in part of stopband despite the change of frequency characteristics.
Keyword (in Japanese) (See Japanese page) 
(in English) variable filters / semidefinite programming / equiripple characteristics / specified attenuation / / / /  
Reference Info. IEICE Tech. Rep., vol. 118, no. 182, SIP2018-57, pp. 1-5, Aug. 2018.
Paper # SIP2018-57 
Date of Issue 2018-08-13 (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 SIP2018-57

Conference Information
Committee SIP  
Conference Date 2018-08-20 - 2018-08-21 
Place (in Japanese) (See Japanese page) 
Place (in English) Takushoku Univ. Bunkyo Campus. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To SIP 
Conference Code 2018-08-SIP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Design method of variable FIR filters with specified attenuation in part of stopband 
Sub Title (in English)  
Keyword(1) variable filters  
Keyword(2) semidefinite programming  
Keyword(3) equiripple characteristics  
Keyword(4) specified attenuation  
Keyword(5)  
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1st Author's Name Takakazu Kimura  
1st Author's Affiliation Tokyo University of Science (TUS)
2nd Author's Name Toma Miyata  
2nd Author's Affiliation Salesian Polytechnic (Salesian Polytechnic)
3rd Author's Name Yoshinori Tarumoto  
3rd Author's Affiliation ISHIDA CO.,LTD. (ISHIDA)
4th Author's Name Takahiro Natori  
4th Author's Affiliation Tokyo University of Science (TUS)
5th Author's Name Naoyuki Aikawa  
5th Author's Affiliation Tokyo University of Science (TUS)
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Speaker Author-1 
Date Time 2018-08-20 14:00:00 
Presentation Time 25 minutes 
Registration for SIP 
Paper # SIP2018-57 
Volume (vol) vol.118 
Number (no) no.182 
Page pp.1-5 
#Pages 5 
Date of Issue 2018-08-13 (SIP) 

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