Frame Synchronization in Time-Multiplexed PCM Telemetry With Variable Frame Length

New methods of parallel and serial synchronization for time-multiplexed signals are presented. In the parallel case, i.e., when the sync code is transmitted on a separate channel, M synchronization codes are generated by concatenating (in the sense used in concatenated codes) a common pn-like sequen...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on communications 1972-10, Vol.20 (5), p.1005-1008
Main Author: Timor, U.
Format: Article
Language:English
Subjects:
Concatenated codes
Degradation
Government
Phase change materials
Power capacitors
Propulsion
Societies
Space technology
Telemetry
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:New methods of parallel and serial synchronization for time-multiplexed signals are presented. In the parallel case, i.e., when the sync code is transmitted on a separate channel, M synchronization codes are generated by concatenating (in the sense used in concatenated codes) a common pn-like sequence of short length with words from a self-synchronizable code. The frame synchronizer can lock on any of the M codes, which is particularly useful when frames of different lengths have to be transmitted. In the serial case, that is when each frame starts with an identical sync code, false sync due to replicas of the code, randomly generated by the data, is completely eliminated by transferring the sync code to the quadrature channel, while the data are transmitted on the inphase channel.
ISSN:0090-6778
1558-0857
DOI:10.1109/TCOM.1972.1091272