NDLI: Vhf command system study. [spectral analysis of gsfc vhf-psk and vhf-fsk command systems

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Vhf command system study. [spectral analysis of gsfc vhf-psk and vhf-fsk command systems

Content Provider	NASA Technical Reports Server (NTRS)
Author	Gee, T. H. Geist, J. M.
Copyright Year	1973
Description	Solutions are provided to specific problems arising in the GSFC VHF-PSK and VHF-FSK Command Systems in support of establishment and maintenance of Data Systems Standards. Signal structures which incorporate transmission on the uplink of a clock along with the PSK or FSK data are considered. Strategies are developed for allocating power between the clock and data, and spectral analyses are performed. Bit error probability and other probabilities pertinent to correct transmission of command messages are calculated. Biphase PCM/PM and PCM/FM are considered as candidate modulation techniques on the telemetry downlink, with application to command verification. Comparative performance of PCM/PM and PSK systems is given special attention, including implementation considerations. Gain in bit error performance due to coding is also considered.
File Size	4415938
Page Count	208
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19740004734
Archival Resource Key	ark:/13960/t5r833w6p
Language	English
Publisher Date	1973-06-01
Access Restriction	Open
Subject Keyword	Frequency Modulation Command and Control Spectrum Analysis Frequency Shift Keying Very High Frequencies Telecommunication Pulse Code Modulation Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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