Single-ended loop characterization

TitleSingle-ended loop characterization
Publication TypeJournal Article
Year of Publication1996
AuthorsWong, K., and T. Aboulnasr
JournalCircuits and Systems I: Fundamental Theory and Applications, IEEE Transactions on
Pagination996 -998
Date Publisheddec.
Keywordsinsertion loss, losses, single-ended loop characterization, single-port measurements, subscriber loops, telephone line, two-port network, two-port networks, voice communication, voice range applications

In this brief, we present an approach for modeling a two-port network based on single-port measurements and minimal information about the termination at the other port. We approach the problem with a specific application in mind: estimation of insertion loss of a telephone line based on measurements from the central office end only. We propose to estimate the insertion loss to within plusmn;1 dB over a prescribed class of telephone lines for voice range applications. Results can then be projected to other frequencies in that range with the same accuracy


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