AuthorLoCasale, Thomas M.
AffiliationAYDIN MONITOR Systems
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RightsCopyright © International Foundation for Telemetering
Collection InformationProceedings from the International Telemetering Conference are made available by the International Foundation for Telemetering and the University of Arizona Libraries. Visit http://www.telemetry.org/index.php/contact-us if you have questions about items in this collection.
AbstractRate 1/2 constraint length 7 convolutionally encoded PCM/QPSK techniques offer significant Bit Error Probability versus Signal to Noise Performance improvements compared to unencoded PCM/BPSK and yet require no increase in system bandwidth and little increase in hardware cost. This applications oriented paper explains the effects on those factors which determine realistic coded modem degradation e.g.: PSK carrier and PCM bit synchronization, phase ambiguity, and coding gain in the presence of noise, jitter, transition density, and offset and gain variations. Measured performance is presented, and pitfalls are identified which can lead to misinterpretation of empirical data.
SponsorsInternational Foundation for Telemetering