文章基本信息

标题：A PARCOR-type DTMF Receiver Feasible in In-band Signalling
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作者：Gyeong, Mun-Geon ; Baek, Je-In ; Lee, Yeong-Ho 等
期刊名称：ETRI Journal
印刷版ISSN：1225-6463
电子版ISSN：2233-7326
出版年度：1987
卷号：9
期号：3
页码：74-85
语种：Korean
出版社：Electronics and Telecommunications Research Institute
摘要：In this paper, a new kind of dual tone multifrequency receiver(DTMFR) is proposed, in which detection is made in terms of the partial correlation(PARCOR) coefficients for efficient DTMF signal detection against both temporary decoding errors by crosstalks possibly coming from adjoint telephone lines during transmission and so-called digit simulation by background voice or noise signals during interdigit period. A simulation study on the behaviour of PARCOR coefficients for tone signals and non-signals has been performed in order to provide the rationale on the feasibility of the proposed DTMFR algorithm. Based upon simulation results, a more refined detection strategy as an example is presented and explained together with the corresponding decision logic.