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In-service nonintrusive measurement of echo parameters in telephone-type networks

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2 Author(s)
Bertocco, M. ; Dipt. di Elettronica e Inf., Padova Univ., Italy ; Paglierani, P.

The paper presents an in-service nonintrusive technique for the measurement of the echo path delay and echo attenuation in telephone-type networks. The proposed method is based on a cross-correlation technique in conjunction with adaptive filtering of the observed transmitted signal. Experimental results show the high accuracy and robustness of the proposed measurement procedure

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Instrumentation and Measurement, IEEE Transactions on  (Volume:47 ,  Issue: 5 )