美国数字音频广播带内同频技术的实现方案  

The Realized Project of In-Band On-Channel Technology of DAB

作　　者：周琳[1] 姜晔[1] 吴镇扬[1] 

机构地区：[1]东南大学无线电工程系,江苏南京210096

出　　处：《电声技术》2000年第7期27-30,共4页Audio Engineering

摘　　要：带内同频（In－BandOn－Channel）技术以其兼容性、频谱有效性、灵活性和可靠性成为美国数字音频广播（DAB）极具吸引力的数字化方案。目前有两家机构开发了IBOC系统：USADR和LucentDR。详细介绍了这两套系统，包括编、解码和调制技术。In-Band On-Channel (IBOC) technology has the very attractive advantages-noneed for new spectrum allocations, backward and forward compatibility, and a low-investment upgrade to digital systems─that will drive adoption of digital sound broadcasting technology in the market place. Two companies are now developing competing versions of IBOC DAB technology, Lucent Digital Radio and USA Digital Radio. In this article we describe different aspects of IBOC technology, including code, decode and modulation. But the future of digital radio hangs in the balance.

关 键 词：带内同频 数字音频广播 复流技术 

分 类 号：TN93[电子电信—信号与信息处理]