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performance of unbalanced qpsk in the presence of noisy reference and crosstalkThe problem of transmitting two telemetry data streams having different rates and different powers using unbalanced quadriphase shift keying (UQPSK) signaling is considered. It is noted that the presence of a noisy carrier phase reference causes a degradation in detection performance in coherent communications systems and that imperfect carrier synchronization not only attenuates the main demodulated signal voltage in UQPSK but also produces interchannel interference (crosstalk) which degrades the performance still further. Exact analytical expressions for symbol error probability of UQPSK in the presence of noise phase reference are derived.
Document ID
19810037479
Document Type
Conference Proceedings
Authors
Divsalar, D.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Yuen, J. H.
(California Institute of Technology, Jet Propulsion Laboratory, Pasadena Calif., United States)
Date Acquired
August 11, 2013
Publication Date
January 1, 1979
Subject Category
COMMUNICATIONS AND RADAR
Meeting Information
NTC ''79; National Telecommunications Conference(Washington, DC)
Funding Number(s)
CONTRACT_GRANT: NAS7-100
Distribution Limits
Public
Copyright
Other