应用卫星数字广播实施跨地区教育项目  

DIGITAL AUDIO BROADCASTING THROUGH SATELLITES FOR REGION-WIDE EDUCATIONAL PROGRAMMES

作　　者：拉曼.饶(V.RamaRao) 

机构地区：[1]印度英迪拉.印甘地国立开放大学

出　　处：《中国远程教育》1999年第11期50-52,63,共4页Chinese Journal of Distance Education

摘　　要：In the ensuing digital era, digital audio broadcasting is an emerging technology with interesting possibilities as a delivery medium for distance education programmes. As theAsia-Pacific is well provided with communication satellites all across the region,satellite-based digital audio broadcasting can be particularly usefulfor launching joint educational ventures by different open universities in the region, mass level awarenessprogrammes on a regional scale as well as for development communication in general.The paper examines the new technology of satellite-based digital audio broadcasting, its potentialities inthe context of distance education and some infrastructure requirements for its effective use. It is noted that,in addition to transmission of sound, digital broadcasting system can simultaneously carry multi-media. Therefore, the system can he readily adopted for: Audio/audio-graphic conferencing; High quality broadcasting ofeducational audios; Data broadeasting for real time delivery of textual materials; Transmission of multi-mediacourse wares.As the new technology combines in itself the inherent pedagogical virtues of the audio medium, vast andinstant reach, simultaneous transmission of multi-media content and real-time interactivity, digital audiobroadcasting holds the promise of a cost-effective solution for the distance education needs of the region atlarge.In the ensuing digital era, digital audio broadcasting is an emerging technology with interesting possibilities as a delivery medium for distance education programmes. As theAsia-Pacific is well provided with communication satellites all across the region,satellite-based digital audio broadcasting can be particularly usefulfor launching joint educational ventures by different open universities in the region, mass level awarenessprogrammes on a regional scale as well as for development communication in general.The paper examines the new technology of satellite-based digital audio broadcasting, its potentialities inthe context of distance education and some infrastructure requirements for its effective use. It is noted that,in addition to transmission of sound, digital broadcasting system can simultaneously carry multi-media. Therefore, the system can he readily adopted for: Audio/audio-graphic conferencing; High quality broadcasting ofeducational audios; Data broadeasting for real time delivery of textual materials; Transmission of multi-mediacourse wares.As the new technology combines in itself the inherent pedagogical virtues of the audio medium, vast andinstant reach, simultaneous transmission of multi-media content and real-time interactivity, digital audiobroadcasting holds the promise of a cost-effective solution for the distance education needs of the region atlarge.

关 键 词：应用卫星 数字音频广播 数字广播 远程教育 广播接收机 开放大学 亚太地区 远距离教育 集线器 地面传输 

分 类 号：G432[文化科学—教育学]