SPECTRAL SHAPE PREDICTOR FOR PCM/FM TRANSMISSIONS
dc.contributor.author | Brown, Roger W. | |
dc.date.accessioned | 2016-06-15T20:38:10Z | |
dc.date.available | 2016-06-15T20:38:10Z | |
dc.date.issued | 1982-09 | |
dc.identifier.issn | 0884-5123 | |
dc.identifier.issn | 0074-9079 | |
dc.identifier.uri | http://hdl.handle.net/10150/613273 | |
dc.description | International Telemetering Conference Proceedings / September 28-30, 1982 / Sheraton Harbor Island Hotel and Convention Center, San Diego, California | en_US |
dc.description.abstract | This paper will demonstrate a computer application program to predict the spectral shape and IRIG-RF bandwidth required for a PCM/FM telemetry system. A filtered PCM bit stream is constructed from a Fourier series and used to FM-modulate the RF carrier. The Fourier transform of the FM-wave is calculated numerically, and voltage amplitude levels are plotted on a Tektronix graphic display. Several PCM bit patterns are used and a composite display is formed to approximate an actual PCM/FM spectrum. A comparison of predicted and actual spectra will be presented. | |
dc.description.sponsorship | International Foundation for Telemetering | en |
dc.language.iso | en_US | en |
dc.publisher | International Foundation for Telemetering | en |
dc.relation.url | http://www.telemetry.org/ | en |
dc.rights | Copyright © International Foundation for Telemetering | en |
dc.title | SPECTRAL SHAPE PREDICTOR FOR PCM/FM TRANSMISSIONS | en_US |
dc.type | text | en |
dc.type | Proceedings | en |
dc.contributor.department | McDonnell Douglas Astronautics Company | en |
dc.identifier.journal | International Telemetering Conference Proceedings | en |
dc.description.collectioninformation | Proceedings 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. | en |
refterms.dateFOA | 2018-09-11T13:08:42Z | |
html.description.abstract | This paper will demonstrate a computer application program to predict the spectral shape and IRIG-RF bandwidth required for a PCM/FM telemetry system. A filtered PCM bit stream is constructed from a Fourier series and used to FM-modulate the RF carrier. The Fourier transform of the FM-wave is calculated numerically, and voltage amplitude levels are plotted on a Tektronix graphic display. Several PCM bit patterns are used and a composite display is formed to approximate an actual PCM/FM spectrum. A comparison of predicted and actual spectra will be presented. |