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An in-service measurement system for the quality analysis of facsimile transmissions

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4 Author(s)
Bertocco, M. ; Dipartimento di Elettronica e Inf., Padova Univ., Italy ; Narduzzi, C. ; Paglierani, P. ; Rizzi, E.

The paper presents a measurement technique for the assessment of the degree of quality of facsimile transmissions over a telephone-type network that can be performed while the communication lines are in use. The main impairments introduced by the telecommunication channel are continuously measured by using a blind equalization technique and a timing recovery system, thus assuring a high accuracy with a reasonable measurement time, even under poor signal-to-noise ratio (SNR) conditions. Experimental results, that confirm the good performance of the proposed method, are reported and discussed

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Instrumentation and Measurement, IEEE Transactions on  (Volume:49 ,  Issue: 6 )