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Double Differential Encoding And Detection In MPSKProposed communication system based on multiple-phase-shift-keying (MPSK) modulation includes double differential encoder in transmitter and double differential detector in receiver. Transmitter generates phase-modulated signal suitable for decoding and detection by subsystem. Detector removes Doppler-frequency component from noisy, Doppler-shifted signal encoded in subsystem. Overall effect of double-differential scheme to cancel effect of Doppler shift on modulation in received signal. Not necessary to estimate Doppler shift to correct for it.
Document ID
19900000268
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Divsalar, D. (Caltech)
Simon, M. K. (Caltech)
Date Acquired
August 14, 2013
Publication Date
June 1, 1990
Publication Information
Publication: NASA Tech Briefs
Volume: 14
Issue: 6
ISSN: 0145-319X
Subject Category
Electronic Systems
Report/Patent Number
NPO-17666
ISSN: 0145-319X
Report Number: NPO-17666
Accession Number
90B10268
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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