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目前市场上流行的无绳电话系统是模拟式的,而近来世界上有不少国家已完成了数字无绳电话系统的研究工作,不久将付之实用。其中具有代表性的有两种制式,即瑞典采用时分多址(TDMA)技术的数字无绳电话系统和英国采用时分双工、频分多址(TDD/FDMA)技术的数字无绳电话系统。本文将对此作简要的介绍,重点在前者。一、TDMA数字无绳电话系统
At present, the popular cordless telephone system on the market is analogue. Recently, many countries in the world have completed the research work on digital cordless telephone systems and will soon be put to practical use. There are two representative formats, that is, the digital cordless telephone system adopting time division multiple access (TDMA) technology in Sweden and the digital cordless telephone system employing time division duplexing and frequency division multiple access (TDD / FDMA) technology in the UK. This article will be a brief introduction to this, with the focus on the former. First, TDMA digital cordless phone system