NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Collections About News Help Login
Back to Results
The use of interleaving for reducing radio loss in trellis-coded modulation systemsIt is demonstrated how the use of interleaving/deinterleaving in trellis-coded modulation (TCM) systems can reduce the signal-to-noise ratio loss due to imperfect carrier demodulation references. Both the discrete carrier (phase-locked loop) and suppressed carrier (Costas loop) cases are considered and the differences between the two are clearly demonstrated by numerical results. These results are of great importance for future communication links to the Deep Space Network (DSN), especially from high Earth orbiters, which may be bandwidth limited.
Document ID
19890018518
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Divsalar, D. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Simon, M. K. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
September 6, 2013
Publication Date
May 15, 1989
Publication Information
Publication: The Telecommunications and Data Acquisition Report
Subject Category
Communications And Radar
Accession Number
89N27889
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

Related Records

There are no records associated with this record.
No Preview Available