数字化广播在我国海上的应用探讨

Discussion on Application of Digital Radio at Sea in China

传统的广播存在音质不高、抗干扰能力弱、接收效果不理想等问题,通过对广播数字化,可以有效提升广播的品质,扩大信号覆盖范围。目前世界上多个国家正在发展数字化广播技术及其应用,并积累了众多经验和成果,同时也在积极探索数字化广播在海上的应用。采用数字调幅广播(DRM)的广播制式,在短波和甚高频频段进行播发,信号可以覆盖近海及远海,并大幅提升广播的内容形式、数量及质量。

Traditional radio has some problems,such as low sound quality,weak anti-interference ability and unsatisfactory reception effect.By digitizing radio,broadcast quality can be effectively improved and signal coverage can be expanded.At present,many countries in the world are developing digital radio technology and its application,and have accumulated a lot of experience and achievements.At the same time,they are also actively exploring the application of digital radio at sea.Digital Radio Mondiale(DRM)broadcasting system is adopted to broadcast in short-wave and VHF radio frequency band.The signals can cover near and far seas,and greatly improves content,quantity and quality of radio.