Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/42654
Título: | Yarn periodical errors determination using three signal processing approaches |
Autor(es): | Carvalho, Vítor Belsley, M. Vasconcelos, Rosa Soares, Filomena |
Palavras-chave: | Yarn periodical errors Yarn irregularities Yarn hairiness Walsh – Hadamard Impulse frequency determination |
Data: | 2013 |
Revista: | Digital Signal Processing: a Review Journal |
Resumo(s): | This paper presents a study developed for identifying the type and location of yarn periodical errors applying three different signal processing approaches based on FFT – Fast Fourier Transform, FWHT – Fast Walsh – Hadamard Transform and FDFI – Fast Impulse Frequency Determination. Commercial equipment uses exclusively a FFT approach which is not able to clearly detect other yarn periodical types of errors, especially impulse errors. The theoretical description of each signal processing technique is presented, as well as their application to several simulated errors, namely, sinusoidal errors, rectangular errors, pulse errors and impulse errors. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/42654 |
DOI: | 10.1016/j.dsp.2013.06.003 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | DET/2C2T - Artigos em revistas internacionais com arbitragem científica |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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6.3.35.pdf | 1,54 MB | Adobe PDF | Ver/Abrir |