DocumentCode
760969
Title
120-Channel Transmultiplexer Design and Performance
Author
Aoyama, Tomonori ; Mano, Fumio ; Wakabayashi, Kiyohisa ; Maruta, Rikio ; Tomozawa, Atsushi
Author_Institution
Nippon Telegraph and Telephone Public Corp., Yokosuka, Japan
Volume
28
Issue
9
fYear
1980
fDate
9/1/1980 12:00:00 AM
Firstpage
1709
Lastpage
1717
Abstract
A 120-channel transmultiplexer has been developed which interfaces two FDM basic supergroup signals (2 x 60 channels) directly to the digital time division switch or digital transmission systems. The equiplnent exploits a block processing digital SSB-FDM multiplex/demultiplex scheme, and has been built using newly developed high-speed CMOS pipeline multipliers and variable length shift registers. System design considerations and hardware implementation techniques are described in detail as well as the measured performance.
Keywords
Frequency-division multiplexing (FDM); Circuits; Current measurement; Demultiplexing; Digital filters; Digital signal processing; Hardware; ISDN; Signal processing; Signal processing algorithms; Switches;
fLanguage
English
Journal_Title
Communications, IEEE Transactions on
Publisher
ieee
ISSN
0090-6778
Type
jour
DOI
10.1109/TCOM.1980.1094825
Filename
1094825
Link To Document