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IFM EFFECTS ON PCM/FM TELEMETRY SYSTEMS

International Telemetering Conference Proceedings / October 26-29, 1998 / Town & Country Resort Hotel and Convention Center, San Diego, California / Incidental Frequency Modulation (IFM) products in telemetry transmitters can be a
significant cause of bit errors in received Pulse Code Modulation/Frequency Modulation
(PCM/FM) telemetry data. Range Commanders Council (RCC) and other documents give
little or no guidance as to acceptable levels of IFM for telemetry applications. The
expected higher vibration levels of future high velocity missile systems means that IFM
levels are likely to be higher than previously encountered.
This paper presents measured data on Bit Error Rate (BER) versus IFM levels at given
Signal to Noise Ratios (SNR’s) for PCM/FM telemetry systems. The information
presented can be utilized with BER versus SNR plots in the Telemetry Applications
Handbook, RCC Document 119, to determine the additional link margin required to
minimize IFM effects on telemetry data quality.

Identiferoai:union.ndltd.org:arizona.edu/oai:arizona.openrepository.com:10150/607378
Date10 1900
CreatorsLaw, Gene, Whiteman, Don
ContributorsIFM EFFECTS ON PCM/FM TELEMETRY SYSTEMS
PublisherInternational Foundation for Telemetering
Source SetsUniversity of Arizona
Languageen_US
Detected LanguageEnglish
Typetext, Proceedings
RightsCopyright © International Foundation for Telemetering
Relationhttp://www.telemetry.org/

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