Please use this identifier to cite or link to this item:
https://scholarbank.nus.edu.sg/handle/10635/62574
DC Field | Value | |
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dc.title | Overmodulation in subcarrier multiplexed video FM broad-band optical networks | |
dc.contributor.author | Mendis, Frederick V.C. | |
dc.contributor.author | Tan, B.T. | |
dc.date.accessioned | 2014-06-17T06:52:33Z | |
dc.date.available | 2014-06-17T06:52:33Z | |
dc.date.issued | 1990-09 | |
dc.identifier.citation | Mendis, Frederick V.C., Tan, B.T. (1990-09). Overmodulation in subcarrier multiplexed video FM broad-band optical networks. IEEE Journal on Selected Areas in Communications 8 (7) : 1285-1289. ScholarBank@NUS Repository. | |
dc.identifier.issn | 07338716 | |
dc.identifier.uri | http://scholarbank.nus.edu.sg/handle/10635/62574 | |
dc.description.abstract | The probability of an SCM (subcarrier multiplexed) signal falling outside the linear region of a laser diode is calculated in order to determine the overmodulation that may be practically employed for multichannel video distribution in single-octave SCM networks. The overmodulation is predicted as a function of the number of subcarriers in single-octave SCM systems supporting up to about 70 FM video channels, for SNRs (signal-to-noise ratios) of 47 dB (I/PAL), and 56 dB (M/NTSC). The RMS optical modulation index (OMI) is demonstrated to be a more useful performance parameter than the linear OMI in SCM systems carrying a large number of channels. A 47-dB weighted SNR (with 4-dB margin) is deemed sufficient for acceptable picture quality in cable distribution systems, whereas a 56-dB value would be required for long-distance point-to-point optical links. RMS OMI values of around 70 and 50, respectively, can be employed. | |
dc.description.uri | http://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1109/49.59128 | |
dc.source | Scopus | |
dc.type | Article | |
dc.contributor.department | ELECTRICAL ENGINEERING | |
dc.description.sourcetitle | IEEE Journal on Selected Areas in Communications | |
dc.description.volume | 8 | |
dc.description.issue | 7 | |
dc.description.page | 1285-1289 | |
dc.description.coden | ISACE | |
dc.identifier.isiut | A1990EA87300008 | |
Appears in Collections: | Staff Publications |
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