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无绳集团电话双音多频DTMF信号的实现
引用本文:申平,曾运华.无绳集团电话双音多频DTMF信号的实现[J].暨南大学学报,1996,17(1):47-52.
作者姓名:申平  曾运华
作者单位:物理系
摘    要:介绍了在无绳集团电话研制中所采用的双音多频DTMF信号的一种实现方法,通过软件模拟不同的单音频率,并对其按一定的采样速率取样,叠加即得到相应的双音多频DTMF信号。同时讨论了帝现的原理及软、硬件设计,并对结果进行了分析。

关 键 词:无绳集团电话  双音多频  DTMF信号  单片机

A Method on Generating Dual Tone Multiple Frequency Signal of Cordless Group Phone
Shen Ping,Zeng Yunhua,Wang Hui.A Method on Generating Dual Tone Multiple Frequency Signal of Cordless Group Phone[J].Journal of Jinan University(Natural Science & Medicine Edition),1996,17(1):47-52.
Authors:Shen Ping  Zeng Yunhua  Wang Hui
Abstract:This paper presents a method to generate the signal of dual tone multiple frequency in the development of the cordless group phone. The single-tone waves are generated by the way of software simulation, then they are sampled at proper speed and overlapped to form the signal of dual tone multiple frequency.The paper also discusses the theory,the design of hardware and software.Finally,the analyzing of resultS is given.
Keywords:cordless group phone  dual tone multiple frequency  single-chipped microcomputer
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