Aspects of PCM Regenerator Design for Crosstalk Limited Environments

The design of PCM regenerators for crosstalk limited environments is considered. A Regenerator Noise Figure is introduced and used to compare various regenerator equalizer designs. An optimum equalizer is derived to provide a basis for the comparison. The major conclusion is that cosine rolloff equa...

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Veröffentlicht in:I.R.E. transactions on communications systems 1981-01, Vol.29 (9), p.1330-1336
Hauptverfasser: Millott, L., Nicholson, G.
Format: Artikel
Sprache:eng
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Zusammenfassung:The design of PCM regenerators for crosstalk limited environments is considered. A Regenerator Noise Figure is introduced and used to compare various regenerator equalizer designs. An optimum equalizer is derived to provide a basis for the comparison. The major conclusion is that cosine rolloff equalizers provide better crosstalk tolerance than Gaussian equalizers and that with particular rolloff factors they achieve near optimum performance. AMI, HDB3, and Class 4 partial response line codes are considered and results placed into practical context by examining regenerator eye diagrams.
ISSN:0090-6778
0096-2244
1558-0857
DOI:10.1109/TCOM.1981.1095137