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EQUOPT: Computer-Aided Wide-Band Equalization of Telephone Lines

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3 Author(s)
A. Bovo ; Lab. Sistemi Speciali,Societa Italiana Telecomm. Siemens,Milano, Italy ; R. Calanchi ; V. Mosca

A computer-aided optimization method for wide-band equalization of telephone pairs is presented. The method was developed specifically for the automatic design of networks, whose principal aim is to minimize the mean-square error (MSE) of the deviations from flat response. The program accepts a set of loss values either measured or computed from the distributed parameters and finds, by an original minimization strategy, an optimized transfer function. An active RC network is used to synthesize this function. Network sensitivity is also evaluated and a procedure is given to calculate the component tolerances. This design technique is being used successfully for the design of equalizers. Some experimental results are given.

Published in:

IEEE Transactions on Communication Technology  (Volume:19 ,  Issue: 5 )