DocumentCode :
907090
Title :
Feasibility of using digital filters to interconnect p.c.m. and f.d.m. transmission systems
Author :
Flood, J.E. ; Onn, P.
Author_Institution :
University of Aston in Birmingham, Department of Electrical Engineering, Birmingham, UK
Volume :
6
Issue :
5
fYear :
1970
Firstpage :
134
Abstract :
A time-division multiplex (t.d.m.) and a frequency-division multiple (f.d.m.) system may be interconnected by means of gates and lowpass filters. The use of digital filters (d.f.s) for this purpose appears attractive when the t.d.m. system uses pulse-code modulation (p.c.m.), because digital-analogue and analogue-digital conversion are unnecessary at the interface between the d.f. and the p.c.m. system. The problems involved in applying d.f.s in this application are discussed. It is concluded that the interconnection of p.c.m. systems with f.d.m. systems using quite low carrier frequencies requires the development of digital circuits operating at several hundred megahertz.
Keywords :
digital filters; frequency division multiplexing; time division multiplexing;
fLanguage :
English
Journal_Title :
Electronics Letters
Publisher :
iet
ISSN :
0013-5194
Type :
jour
DOI :
10.1049/el:19700091
Filename :
4234579
Link To Document :
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