DocumentCode
1057046
Title
New Realization of DFT Applied to CCITT No. 5 Telephone Signaling System
Author
Ikeda, Yoshikazu ; Norigoe, Masamitsu
Author_Institution
Kokusai Denshin Denwa Co., Ltd. Meguro-ku, Tokyo, Japan
Volume
2
Issue
2
fYear
1984
fDate
3/1/1984 12:00:00 AM
Firstpage
334
Lastpage
339
Abstract
This paper describes a digital multifrequency signal receiver based on the discrete Fourier transform (DFT) principle. The new lookup table implementation for fast multiplication of an input PCM sample and a kernel sample leads to simple hardware for the operation of 128 time-multiplexed channels of the CCIT No. 5 line signal receiver. Overlap operation and guard logics are also employed to meet the signaling system requirements.
Keywords
DFT; Discrete Fourier transforms (DFT´s); Signal detection; Telephone systems; Circuits; Communication system signaling; Discrete Fourier transforms; Hardware; Phase change materials; Registers; Signal design; Signal detection; Signal processing; Telephony;
fLanguage
English
Journal_Title
Selected Areas in Communications, IEEE Journal on
Publisher
ieee
ISSN
0733-8716
Type
jour
DOI
10.1109/JSAC.1984.1146056
Filename
1146056
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