Paper Abstract and Keywords |
Presentation |
2006-03-06 15:55
A trick for accurate differentiation at low sampling rates Ishtiaq Rasool Khan, Masahiro Okuda (Kitakyushu Univ.) |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
Digital differentiators are an important type of digital filters which find many applications in instrumentation and control. The performance of the available designs of digital differentiators is poor in the higher frequency band, as compared to that in the lower band. Therefore, for accurate differentiation, the input signal needs to be sampled at higher sampling rates, to restrict the signal have all the information in the lower frequency band. Higher sampling rate needs higher computational and storage burden, and moreover, in certain cases, we don’t have control over the sampling frequency. A possible solution could be upsampling the signal before feeding it to the differentiator; however, upsampling would introduce its own inaccuracies. In this paper, we study digital differentiators more closely, and find the minimum sampling rates that would ensure determination of derivatives at higher accuracies. The effect of the inaccuracies introduced by upsampling, on the output of the differentiator is also investigated. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
FIR Digital Differentiators / Maximally Linear / Linear Phase Digital Filters / Explicit Formulas / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 105, no. 635, SIP2005-152, pp. 61-66, March 2006. |
Paper # |
SIP2005-152 |
Date of Issue |
2006-02-27 (CAS, SIP, CS) |
ISSN |
Print edition: ISSN 0913-5685 |
Download PDF |
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Conference Information |
Committee |
CAS SIP CS |
Conference Date |
2006-03-06 - 2006-03-07 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Univ of Ryukyu |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Network processors, signal processing for communications, coding theory, etc. |
Paper Information |
Registration To |
SIP |
Conference Code |
2006-03-CAS-SIP-CS |
Language |
English |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
A trick for accurate differentiation at low sampling rates |
Sub Title (in English) |
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Keyword(1) |
FIR Digital Differentiators |
Keyword(2) |
Maximally Linear |
Keyword(3) |
Linear Phase Digital Filters |
Keyword(4) |
Explicit Formulas |
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1st Author's Name |
Ishtiaq Rasool Khan |
1st Author's Affiliation |
The University of Kitakyushu (Kitakyushu Univ.) |
2nd Author's Name |
Masahiro Okuda |
2nd Author's Affiliation |
The University of Kitakyushu (Kitakyushu Univ.) |
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Speaker |
Author-1 |
Date Time |
2006-03-06 15:55:00 |
Presentation Time |
25 minutes |
Registration for |
SIP |
Paper # |
CAS2005-106, SIP2005-152, CS2005-99 |
Volume (vol) |
vol.105 |
Number (no) |
no.633(CAS), no.635(SIP), no.637(CS) |
Page |
pp.61-66 |
#Pages |
6 |
Date of Issue |
2006-02-27 (CAS, SIP, CS) |
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