Shaped BPSK and the 5 kHz UHF SATCOM channels

Michael E. Fox, Michael W. Marcellin

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations


A method of generating constant envelope BPSK-compatible modulation formats is described in which spectral containment is achieved via controlled phase rotations. These SBPSK modulations are compared with classical BPSK as well as a shaped BPSK modulation specified by the Joint Chiefs of Staff for use with Department of Defense 5-kHz UHF satellite communication channels. It is shown that the use of SBPSK modulations can allow significant increases in the data transmission rate without exceeding the spectral envelope of a lower-rate BPSK signal. The analysis also includes fractional out-of-band power curves for the modulated signals before and after transmission through a bandpass hard-limited channel. Equivalent signal-to-noise ratios are generated to quantify the simultaneous reduction of adjacent channel interference and I channel energy. Probability of error curves are presented for BPSK and SBPSK modulations transmitted through a bandlimited and hard-limited channel.

Original languageEnglish (US)
Title of host publicationProceedings - IEEE Military Communications Conference
PublisherPubl by IEEE
Number of pages7
ISBN (Print)0879426918
StatePublished - Dec 1991
Event1991 IEEE Military Communications Conference - MILCOM '91 Part 1 (of 3) - McLean, VA, USA
Duration: Nov 4 1991Nov 7 1991

Publication series

NameProceedings - IEEE Military Communications Conference


Other1991 IEEE Military Communications Conference - MILCOM '91 Part 1 (of 3)
CityMcLean, VA, USA

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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