DocumentCode
753799
Title
Digital Processing Techniques in the 60 Channel Transmultiplexer
Author
Bonnerot, Georges ; Coudreuse, Michel ; Bellanger, Maurice G.
Author_Institution
Télécommunications Radioélectriques et Télephoniques, France
Volume
26
Issue
5
fYear
1978
fDate
5/1/1978 12:00:00 AM
Firstpage
698
Lastpage
706
Abstract
Techniques applied to the digital processing of speech and signaling in a 60 channel FDM to 30 channel PCM converter are presented. Great efficiency is achieved through connecting a particular type of Fourier Transform computer to a polyphase network in which coefficient symmetries are exploited. Digital processing parameter values have been chosen so as to meet specified performance objectives. Realization of a laboratory model is outlined and measured performance is reported. Adequacy of the various options retained for the digital processing is confirmed by the experimental results.
Keywords
Frequency-division multiplexing (FDM); PCM communication; Time-division multiplexing; Band pass filters; Digital filters; Filter bank; Filtering; Frequency division multiplexing; Laboratories; Phase change materials; Pulse modulation; Signal processing; Speech processing;
fLanguage
English
Journal_Title
Communications, IEEE Transactions on
Publisher
ieee
ISSN
0090-6778
Type
jour
DOI
10.1109/TCOM.1978.1094124
Filename
1094124
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