Research of possibility of decoding digitized DTMF-tone

被引：0

作者：

Gareeva, RG ^{[1
]}

Melnikov, YV ^{[1
]}

Sypin, EV ^{[1
]}

Stepanov, VA ^{[1
]}

机构：

[1] Biysk Technol Inst, Biisk, Russia

来源：

SIBERIAN RUSSIAN WORKSHOPS AND TUTORIALS ON ELECTRON DEVICES AND MATERIALS, EDM 2002, VOL 2, PROCEEDINGS | 2002年

关键词：

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Purpose of the given research was the determination of a possibility of decoding of the digitized DTMF-code in real time mode and the creation of algorithms of decoding of the code in the given condition. In this paper the case of using of the comparator for the digitization of accepted signal is considered. The algorithm of decoding of the code for this case is written. The possible values of time between the edge and the slope are presented at sampling rate 8KHz. After the holding the analysis of reliability is established. If the amplitude of parasite signal is 12% of useful signal the reliability of decoding is equal to the 99,88%. The second advantage of the algorithm is the abbreviation of expenditures on the hardware.

引用

页码：45 / 47

页数：3

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