Digitizing multichannel video signals for lightwave transmission

Author

Green, Roger J. ; Pan, Qi

Author_Institution

Dept. of Electr. & Electron. Eng., Bradford Univ., UK

Volume

44

Issue

7

fYear

1996

fDate

7/1/1996 12:00:00 AM

Firstpage

1041

Lastpage

1045

Abstract

This paper presents a new approach to the design of lightwave multichannel CATV transmission systems using broadband digital coding to convert an all-analog multiplexed video signal to a string of pulses suitable for digital transmission. Four broadband coding methods have been discussed and compared, which are: uniform and optimal companding PCM, as well as uniform and adaptive DM. The principle advantages of this approach include the benefits obtainable from digital transmission and also direct compatibility with current CATV networks. CNR limits have been investigated for all of these methods

Keywords

analogue-digital conversion; cable television; delta modulation; digital television; optical fibre communication; pulse code modulation; video coding; visual communication; CATV network; CNR; adaptive DM; broadband digital coding; digital transmission; lightwave transmission; multichannel video signal digitization; optimal companding PCM; uniform DM; uniform PCM; Delta modulation; High speed optical techniques; Laser noise; Optical distortion; Optical modulation; Optical network units; Optical noise; Optical receivers; Phase change materials; System performance;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.508636

Filename

508636