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Effect of digital scrambling on satellite communication linksDigital data scrambling has been considered for communication systems using NRZ symbol formats. The purpose is to increase the number of transitions in the data to improve the performance of the symbol synchronizer. This is accomplished without expanding the bandwidth but at the expense of increasing the data bit error rate (BER). Models for the scramblers/descramblers of practical interest are presented together with the appropriate link model. The effects of scrambling on the performance of coded and uncoded links are studied. The results are illustrated by application to the Tracking and Data Relay Satellite System (TDRSS) links. Conclusions regarding the usefulness of scrambling are also given.
Document ID
19860052799
Document Type
Conference Paper
Authors
Dessouky, K. (LinCom Corp. Los Angeles, CA, United States)
Date Acquired
August 12, 2013
Publication Date
January 1, 1985
Subject Category
SPACE COMMUNICATIONS, SPACECRAFT COMMUNICATIONS, COMMAND AND TRACKING
Funding Number(s)
CONTRACT_GRANT: NAS5-27240
Distribution Limits
Public
Copyright
Other