多径干扰抑制技术在广播电视无线发射中的应用  

Application of Multipath Interference Suppression Technology in Wireless Transmission of Radio and Television

作　　者：侯志文[1] HOU Zhiwen(Anhui Radio and Television Station Xuancheng Launch Station,Xuancheng 242000,China)

机构地区：[1]安徽广播电视台宣城发射台,安徽宣城242000

出　　处：《电视技术》2025年第2期111-113,共3页Video Engineering

摘　　要：多径干扰是影响广播电视无线发射质量的重要因素。分析多径干扰对信号传输的影响,探讨发射分集、发射信号预失真、自适应均衡和正交频分复用(Orthogonal Frequency Division Multiplexing,OFDM)调制等多径干扰抑制技术在广播电视无线发射中的应用。通过实验对比,评估对比这些技术的性能。结果表明,OFDM技术在多项指标上表现突出,但各种技术均有其特定优势。Multipath interference is an important factor affecting the quality of radio and television transmission.In this paper,the influence of multipath interference on signal transmission is analyzed,and the application of Orthogonal Frequency Division Multiplexing(OFDM)modulation in radio and television transmission is discussed.Evaluate and compare the performance of these technologies through experimental comparison.The results show that OFDM technology is outstanding in many indexes,but each technology has its specific advantages.

关 键 词：多径干扰 广播电视 无线发射 

分 类 号：TN948.14[电子电信—信号与信息处理]