数字中波发射机的业务应用  

Business Application of Digital Medium Wave Transmitters

作　　者：李一峰 LI Yifeng(Fuling Broadcasting Station of Chongqing Radio and Television Technology Center,Chongqing 408000,China)

机构地区：[1]重庆广播电视技术中心涪陵转播台,重庆408000

出　　处：《电声技术》2023年第5期115-117,121,共4页Audio Engineering

摘　　要：传统的中波发射机技术因具有覆盖范围广等优势被广泛应用于广播领域,但极易受电磁的影响,这会对后续的信号处理、调制与发射等操作产生不利影响。为解决传统中波发射机容易受电磁干扰而影响广播质量的问题,对数字中波发射机的现状进行分析,然后从信号处理、信号调制以及信号演示3个角度进行数字化技术创新,由此得到具备集成化、数字化、高效率以及高质量等优势的数字中波发射机。经过数字化创新的数字中波发射机具有较好的发展前景,可以应用于广播行业,并为中波广播技术的应用与推广奠定坚实的基础。The traditional medium wave transmitter technology is widely used in the broadcasting field because of its wide coverage,but it is easily affected by electromagnetism,which will adversely affect the subsequent signal processing,modulation and transmission operations.In order to solve the problem that the traditional medium wave transmitter is easily affected by electromagnetic interference,the present situation of digital medium wave transmitter is analyzed,and then the digital technology innovation is carried out from three aspects:signal processing,signal modulation and signal demonstration,so as to obtain a digital medium wave transmitter with the advantages of integration,digitization,high efficiency and high quality.The digital medium wave transmitter with digital innovation has a good development prospect,which can be applied to the broadcasting industry and provide a solid foundation for the application and promotion of medium wave broadcasting technology.

关 键 词：中波发射机 数字化特征 信号调制 业务应用 

分 类 号：TN838[电子电信—信息与通信工程]