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Paper Abstract and Keywords
Presentation 2019-08-29 14:45
Investigation of Finite Word Length Design Method for Linear Phase FIR Filters with Variable Stopband Considering Reduction of Polynomial Coefficients
Toma Miyata (Salesian Polytechnic), Naoyuki Aikawa (TUS) SIP2019-41
Abstract (in Japanese) (See Japanese page) 
(in English) In this paper, we investigate a finite word length design of linear phase variable FIR filters with variable multiple elements of stopband having a piecewise high stopband attenuation. The variable filter's filter coefficients are composed by polynomial using variable parameters to vary filter characteristics according to variable parameters. Therefore, polynomial coefficients increase to vary multiple elements in the stopband. Focusing on filter coefficients, the higher-order terms become smaller. The higher-order terms have little effect on the characteristics of the variable filters. In the proposed method, filter coefficients are constructed with the higher-order terms reduced. In order to use the variable filters reducing polynomial coefficients for embedded devices, the design problem is minimax approximation and finite word length design. The proposed method uses a general genetic algorithm (GA) to solve the design problem. Finally, a design example of variable filters with variable multiple elements in the stopband obtained by the proposed method is shown.
Keyword (in Japanese) (See Japanese page) 
(in English) variable filter / linear phase FIR filter / finite word length design / genetic algorithm / embedded device / / /  
Reference Info. IEICE Tech. Rep., vol. 119, no. 185, SIP2019-41, pp. 11-16, Aug. 2019.
Paper # SIP2019-41 
Date of Issue 2019-08-22 (SIP) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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. (No. 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
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Conference Information
Committee SIP  
Conference Date 2019-08-29 - 2019-08-30 
Place (in Japanese) (See Japanese page) 
Place (in English)  
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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) Investigation of Finite Word Length Design Method for Linear Phase FIR Filters with Variable Stopband Considering Reduction of Polynomial Coefficients 
Sub Title (in English)  
Keyword(1) variable filter  
Keyword(2) linear phase FIR filter  
Keyword(3) finite word length design  
Keyword(4) genetic algorithm  
Keyword(5) embedded device  
1st Author's Name Toma Miyata  
1st Author's Affiliation Salesian Polytechnic (Salesian Polytechnic)
2nd Author's Name Naoyuki Aikawa  
2nd Author's Affiliation Tokyo University of Science (TUS)
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Date Time 2019-08-29 14:45:00 
Presentation Time 25 
Registration for SIP 
Paper # IEICE-SIP2019-41 
Volume (vol) IEICE-119 
Number (no) no.185 
Page pp.11-16 
#Pages IEICE-6 
Date of Issue IEICE-SIP-2019-08-22 

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