NDLI: Pulse frequency calculation and estimation in yarn evenness analysis

Content Provider	IEEE Xplore Digital Library
Author	Monteiro, J.L. Couto, C.A.
Copyright Year	1995
Description	Author affiliation: Dept. de Electron. Ind., Minho Univ., Braga, Portugal (Monteiro, J.L.)
Abstract	The present paper describes work carried out, within a project to the textile industry, to achieve supervision and characterization of spun yarn. One of the main goals was to establish a methodology to easily determinate the roller draft that causes irregularities. Two different approaches to achieve decomposition of a binary signal in digital signals with known pulse frequencies are presented. The first approach, already used and tested in the laboratory, is based on two different methods: the first method uses an accelerated algorithm based either on the Fourier or Walsh transforms, while the second one presents a new methodology, DFI (impulse frequency determination), for signals where long periods with very short duty cycle are expected. The use of one of these methods instead of the other depends on the characteristics of the signals under analysis and on the pursued objectives. A new methodology to decrease memory amount and increase the speed of the DFI calculation is presented and discussed. Several techniques are compared. A new approach using logical analysis of the thresholded signal of the yarn mass, to establish the probability of a pulse frequency to be one of the signal components, is under study at our lab.
Starting Page	985
Ending Page	989
File Size	454290
Page Count	5
File Format	PDF
ISBN	0780330269
DOI	10.1109/IECON.1995.483863
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1995-11-06
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Frequency estimation Yarn Textile industry Microcomputers Spectral analysis Signal processing algorithms Signal analysis Mass production Capacitive sensors Capacitors
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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