数字声广播(DAB)的开发研究始于70年代末期,至1988年,基础性研究和初步的开路试验结果都显示出它成为新一代广播系统的生命力,引起了世界各国的重视。本文从分析现有声音广播系统的特点及其发展潜力入手,说明DAB的许多优越性、特别是在移动接收、声音的高质量、频谱利用率、低功率发射和附加数据等方面都具有取代现有FM广播、甚至短波广播的可能。 The development of digital sound broadcasting (DAB) began in the late 1970s. By 1988, basic research and preliminary open circuit test results showed that it became the vitality of the new generation of broadcasting systems and attracted the attention of all countries in the world. Starting with the analysis of the features and potential of existing sound broadcasting systems, this article illustrates many of the advantages of DAB, in particular in the areas of mobile reception, high quality sound, spectrum utilization, low power transmission and additional data There is the possibility of FM radio or even shortwave radio.