NDLI: Synchronization for QPSK Transmission via Communications Satellites

Content Provider	IEEE Xplore Digital Library
Author	Palmer, L. Rhodes, S. Lebowitz, S.
Copyright Year	1972
Abstract	Carrier phase and symbol timing synchronization performances are determined for QPSK transmission over the nonlinear communications satellite channel with several typical modem filtering configurations. A computer simulation is used that models conventional or offset QPSK transmission, the modem filters, the nonlinear satellite TWTA, and the receive modem synchronizers. These simulations are used to obtain errors in carrier phase and symbol timing estimates caused by both thermal noise and the modulation-pattern-induced jitter. The statistics of these errors are obtained for several channel filtering combinations and TWTA backoff levels. These experiments are extended to examine the overall effect of synchronization errors on bit-error probability for one particular implementation of the synchronizers.
Starting Page	1302
Ending Page	1314
Page Count	13
File Size	1193076
File Format	PDF
ISSN	00906778
Volume Number	28
Issue Number	8
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1980-08-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Quadrature phase shift keying Artificial satellites Modems Filtering Computer errors Computer simulation Filters Computational modeling Timing jitter Phase estimation
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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